/* ============================================================
   TECHBOX — components.css
   Buttons, cards, forms, header, footer, hero, ecosystem,
   service selector, timeline, projects, etc.
   ============================================================ */

/* ---------- Buttons ---------- */
.btn {
    --btn-bg: transparent;
    --btn-fg: var(--white);
    --btn-bd: var(--line-strong);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 15px 26px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--btn-fg);
    background: var(--btn-bg);
    border: 1px solid var(--btn-bd);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: transform var(--dur-fast) var(--ease),
                background var(--dur-fast) var(--ease),
                border-color var(--dur-fast) var(--ease),
                color var(--dur-fast) var(--ease),
                box-shadow var(--dur-fast) var(--ease);
    white-space: nowrap;
    text-decoration: none;
    line-height: 1;
}
.btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
    --btn-bg: var(--blue);
    --btn-fg: #FFFFFF;
    --btn-bd: var(--blue);
    box-shadow: 0 8px 24px -6px rgba(8,102,255,0.45);
}
.btn-primary:hover {
    --btn-bg: var(--electric);
    --btn-bd: var(--electric);
    box-shadow: 0 12px 30px -6px rgba(8,102,255,0.55);
}

.btn-outline {
    --btn-bg: var(--surface-1);
    --btn-fg: var(--white);
    --btn-bd: var(--line-strong);
}
.btn-outline:hover {
    --btn-bd: var(--electric);
    --btn-fg: var(--electric);
    background: rgba(8,102,255,0.06);
}

.btn-ghost {
    --btn-bd: transparent;
    --btn-fg: var(--silver);
    padding-inline: 14px;
}
.btn-ghost:hover { --btn-fg: var(--white); background: var(--surface-2); }

.btn-whatsapp {
    --btn-bg: rgba(8,102,255,0.08);
    --btn-fg: var(--electric);
    --btn-bd: var(--line-blue);
}
.btn-whatsapp:hover {
    --btn-bg: rgba(8,102,255,0.15);
    --btn-bd: var(--electric);
    --btn-fg: var(--electric);
}
[data-theme="dark"] .btn-whatsapp {
    --btn-bg: rgba(45,140,255,0.10);
    --btn-fg: var(--white);
    --btn-bd: var(--line-blue);
}
[data-theme="dark"] .btn-whatsapp:hover {
    --btn-bg: rgba(45,140,255,0.16);
    --btn-bd: var(--electric);
}

.btn-lg { padding: 18px 32px; font-size: 0.86rem; }
.btn-block { width: 100%; }

.btn .arrow { transition: transform var(--dur-fast) var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- Header ---------- */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding-block: 18px;
    transition: background var(--dur) var(--ease),
                padding var(--dur) var(--ease),
                border-color var(--dur) var(--ease),
                box-shadow var(--dur) var(--ease),
                backdrop-filter var(--dur) var(--ease);
    border-bottom: 1px solid transparent;
}
.site-header.scrolled {
    background: rgba(255,255,255,0.90);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
    border-bottom-color: var(--line);
    box-shadow: 0 4px 20px -4px rgba(15,23,42,0.06);
    padding-block: 12px;
}
[data-theme="dark"] .site-header.scrolled {
    background: rgba(5,7,10,0.82);
    box-shadow: none;
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--line-strong);
    background: var(--surface-1);
    color: var(--silver);
    cursor: pointer;
    transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
    flex-shrink: 0;
}
.theme-toggle:hover {
    color: var(--white);
    border-color: var(--electric);
    background: var(--surface-2);
    transform: translateY(-1px);
}
.theme-toggle svg {
    width: 18px;
    height: 18px;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

/* Logo */
.logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.22em;
    color: var(--white);
}
.logo-mark {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    display: block;
    object-fit: contain;
}
.logo-text small {
    display: block;
    font-size: 0.55rem;
    letter-spacing: 0.28em;
    color: var(--silver-soft);
    font-weight: 500;
    margin-top: 2px;
}

/* Nav */
.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
    padding: 10px 14px;
    font-size: 0.82rem;
    letter-spacing: 0.08em;
    color: var(--silver);
    border-radius: 6px;
    transition: color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
    position: relative;
}
.nav a:hover { color: var(--white); background: var(--surface-2); }
.nav a.active { color: var(--white); }
.nav a.active::after {
    content: "";
    position: absolute;
    left: 14px; right: 14px; bottom: 4px;
    height: 1px;
    background: var(--electric);
}
.header-cta { display: flex; align-items: center; gap: 12px; }

/* Hamburger */
.hamburger {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid var(--line-strong);
    border-radius: 8px;
    position: relative;
    flex-shrink: 0;
}
.hamburger span {
    position: absolute;
    left: 11px; right: 11px;
    height: 2px;
    background: var(--white);
    transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
}
.hamburger span:nth-child(1) { top: 14px; }
.hamburger span:nth-child(2) { top: 21px; }
.hamburger span:nth-child(3) { top: 28px; }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
    position: fixed;
    inset: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    z-index: 99;
    padding: 100px var(--gutter) 40px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
    overflow-y: auto;
}
[data-theme="dark"] .mobile-menu {
    background: rgba(5,7,10,0.97);
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu a {
    padding: 18px 4px;
    font-size: 1.1rem;
    letter-spacing: 0.06em;
    color: var(--white);
    border-bottom: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.mobile-menu a::after {
    content: "→";
    color: var(--electric);
    font-family: var(--font-mono);
}
.mobile-menu a:hover { color: var(--electric); }
.mobile-menu .btn { margin-top: 24px; }

/* ---------- Hero ---------- */
.hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    align-items: center;
    padding-top: 130px;
    padding-bottom: 60px;
    overflow: hidden;
    background: var(--black);
}
.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}
/* Architectural grid + glow */
.hero-bg::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(1200px 700px at 78% 12%, rgba(8,102,255,0.09), transparent 60%),
        radial-gradient(900px 600px at 8% 90%, rgba(0,98,230,0.05), transparent 60%);
}
[data-theme="dark"] .hero-bg::before {
    background:
        radial-gradient(1200px 700px at 78% 12%, rgba(8,102,255,0.22), transparent 60%),
        radial-gradient(900px 600px at 8% 90%, rgba(45,140,255,0.10), transparent 60%);
}
.hero-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(15,23,42,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,23,42,0.04) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 85% 75% at 60% 40%, #000 25%, transparent 85%);
}
[data-theme="dark"] .hero-bg::after {
    background-image:
        linear-gradient(rgba(174,183,196,0.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(174,183,196,0.055) 1px, transparent 1px);
}
/* Architectural line motif */
.hero-lines {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    opacity: 0.6;
}
.hero-lines svg { width: 100%; height: 100%; }

.hero-content { position: relative; z-index: 3; max-width: 920px; }
.hero h1 {
    font-size: clamp(2.6rem, 7vw, 5.6rem);
    line-height: 0.98;
    letter-spacing: -0.03em;
}
.hero h1 .accent { color: var(--electric); }
.hero .tagline-sub {
    margin-top: 24px;
    font-family: var(--font-mono);
    font-size: clamp(0.9rem, 1.5vw, 1.1rem);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--silver);
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}
.hero .tagline-sub span.dot { color: var(--electric); }
.hero .hero-desc {
    margin-top: 28px;
    max-width: 620px;
    font-size: 1.1rem;
    color: var(--silver);
    line-height: 1.7;
}
.hero-cta {
    margin-top: 38px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}
.hero-meta {
    margin-top: 40px;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--silver-soft);
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
}
.hero-meta span.sep { color: var(--electric); }

.hero-scroll {
    position: absolute;
    bottom: 30px; left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--silver-soft);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}
.hero-scroll::after {
    content: "";
    width: 1px;
    height: 40px;
    background: linear-gradient(180deg, var(--electric), transparent);
    animation: scrollPulse 2.2s var(--ease) infinite;
}
@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.7); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* Hero stat strip in corner */
.hero-corner {
    position: absolute;
    right: var(--gutter);
    bottom: 90px;
    z-index: 3;
    text-align: right;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    color: var(--silver-soft);
    line-height: 1.8;
}
.hero-corner b { color: var(--electric); font-weight: 600; }

/* ---------- Trust strip ---------- */
.trust {
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: var(--black-2);
    position: relative;
}
.trust-head {
    padding-block: 28px;
    text-align: center;
    border-bottom: 1px solid var(--line);
}
.trust-head h3 {
    font-family: var(--font-mono);
    font-size: clamp(1rem, 2vw, 1.4rem);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    font-weight: 600;
}
.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}
.trust-item {
    padding: 36px 28px;
    border-right: 1px solid var(--line);
    text-align: center;
}
.trust-item:last-child { border-right: 0; }
.trust-item .ti-icon {
    width: 38px; height: 38px;
    margin: 0 auto 16px;
    border: 1px solid var(--line-blue);
    border-radius: 8px;
    display: grid; place-items: center;
    color: var(--electric);
    background: rgba(45,140,255,0.06);
}
.trust-item h4 {
    font-size: 0.92rem;
    letter-spacing: 0.08em;
    color: var(--white);
    font-weight: 600;
}
.trust-item p {
    margin-top: 8px;
    font-size: 0.82rem;
    color: var(--silver-soft);
    letter-spacing: 0.04em;
}

/* ---------- Service selector ---------- */
.selector-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}
.selector-card {
    position: relative;
    padding: 26px 22px;
    background: var(--surface-1);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(15,23,42,0.04);
    transition: border-color var(--dur-fast) var(--ease),
                background var(--dur-fast) var(--ease),
                transform var(--dur-fast) var(--ease),
                box-shadow var(--dur-fast) var(--ease);
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-height: 160px;
    text-align: left;
}
.selector-card:hover {
    border-color: var(--line-blue);
    background: var(--surface-1);
    box-shadow: 0 12px 28px -6px rgba(8,102,255,0.12);
    transform: translateY(-3px);
}
[data-theme="dark"] .selector-card {
    box-shadow: none;
}
[data-theme="dark"] .selector-card:hover {
    background: rgba(45,140,255,0.06);
    box-shadow: none;
}
.selector-card .sc-num {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--silver-soft);
    letter-spacing: 0.2em;
}
.selector-card h4 {
    font-size: 1rem;
    color: var(--white);
    font-weight: 600;
}
.selector-card p {
    font-size: 0.84rem;
    color: var(--silver);
    margin: 0;
}
.selector-card .sc-arrow {
    margin-top: auto;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.15em;
    color: var(--electric);
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 8px;
    opacity: 0;
    transform: translateX(-6px);
    transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.selector-card:hover .sc-arrow { opacity: 1; transform: none; }
.selector-card.selected {
    border-color: var(--electric);
    background: rgba(45,140,255,0.10);
}

/* ---------- Solution cards (Core Solutions) ---------- */
.solution {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(28px, 5vw, 72px);
    align-items: center;
    padding-block: clamp(56px, 7vw, 96px);
    border-top: 1px solid var(--line);
    position: relative;
}
.solution:first-of-type { border-top: 0; }
.solution.reverse > .solution-visual { order: -1; }

.solution-num {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    letter-spacing: 0.3em;
    color: var(--electric);
}
.solution h3 {
    margin-top: 16px;
    font-size: clamp(1.6rem, 3vw, 2.4rem);
}
.solution-desc { margin-top: 18px; color: var(--silver); font-size: 1.02rem; line-height: 1.7; }
.solution-services {
    margin-top: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.solution-services li {
    padding: 7px 14px;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.08em;
    color: var(--silver);
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface-1);
    transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.solution-services li:hover { border-color: var(--line-blue); color: var(--white); }
.solution-cta { margin-top: 28px; }

/* Visual: technical panel */
.solution-visual {
    position: relative;
    aspect-ratio: 4 / 3;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background:
        radial-gradient(400px 300px at 80% 20%, rgba(8,102,255,0.10), transparent 60%),
        linear-gradient(135deg, var(--black-2), #FFFFFF);
    box-shadow: var(--shadow-1);
}
[data-theme="dark"] .solution-visual {
    background:
        radial-gradient(400px 300px at 80% 20%, rgba(8,102,255,0.25), transparent 60%),
        linear-gradient(135deg, var(--black-3), var(--black-2));
    box-shadow: none;
}
.solution-visual::before {
    content: "";
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(15,23,42,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,23,42,0.04) 1px, transparent 1px);
    background-size: 32px 32px;
}
[data-theme="dark"] .solution-visual::before {
    background-image:
        linear-gradient(rgba(174,183,196,0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(174,183,196,0.08) 1px, transparent 1px);
}
.solution-visual::after {
    content: "";
    position: absolute;
    inset: 0;
    border: 1px solid var(--line-blue);
    border-radius: var(--radius-lg);
    pointer-events: none;
    box-shadow: inset 0 0 60px rgba(8,102,255,0.12);
}
.solution-visual .sv-tag {
    position: absolute;
    top: 18px; left: 18px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.22em;
    color: var(--electric);
    text-transform: uppercase;
    z-index: 2;
}
.solution-visual .sv-icon {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: rgba(45,140,255,0.5);
}
.solution-visual .sv-icon svg { width: 38%; height: 38%; }
.solution-visual .sv-corner {
    position: absolute;
    bottom: 18px; left: 18px; right: 18px;
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.66rem;
    letter-spacing: 0.18em;
    color: var(--silver-soft);
    text-transform: uppercase;
    z-index: 2;
}
.solution-visual .sv-corner b { color: var(--electric); font-weight: 600; }

/* ---------- One Box Ecosystem ---------- */
.ecosystem-section {
    background: var(--black-2);
    position: relative;
    overflow: hidden;
}
.ecosystem-section::before {
    content: "";
    position: absolute; inset: 0;
    background:
        radial-gradient(700px 700px at 50% 50%, rgba(8,102,255,0.08), transparent 65%);
    pointer-events: none;
}
[data-theme="dark"] .ecosystem-section {
    background: var(--black);
}
[data-theme="dark"] .ecosystem-section::before {
    background:
        radial-gradient(700px 700px at 50% 50%, rgba(8,102,255,0.16), transparent 65%);
}
.ecosystem {
    position: relative;
    width: 100%;
    max-width: 880px;
    margin: 40px auto 0;
    aspect-ratio: 1 / 1;
}
.ecosystem svg {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    overflow: visible;
}
.eco-node {
    position: absolute;
    transform: translate(-50%, -50%);
    width: clamp(96px, 14vw, 130px);
    text-align: center;
}
.eco-node .eco-dot {
    width: 12px; height: 12px;
    border-radius: 50%;
    background: var(--electric);
    box-shadow: 0 0 14px var(--electric);
    margin: 0 auto 10px;
    position: relative;
}
.eco-node .eco-dot::after {
    content: "";
    position: absolute;
    inset: -6px;
    border: 1px solid var(--line-blue);
    border-radius: 50%;
    animation: ecoPulse 2.4s var(--ease) infinite;
}
@keyframes ecoPulse {
    0% { transform: scale(0.8); opacity: 1; }
    100% { transform: scale(1.8); opacity: 0; }
}
.eco-node .eco-label {
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--silver);
}
.eco-center {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 4;
}
.eco-center .eco-box {
    width: clamp(120px, 18vw, 170px);
    height: clamp(120px, 18vw, 170px);
    border: 1px solid var(--line-blue);
    background:
        radial-gradient(circle at 30% 30%, rgba(8,102,255,0.14), transparent 70%),
        #FFFFFF;
    border-radius: 16px;
    display: grid;
    place-items: center;
    box-shadow: var(--glow-blue);
    position: relative;
}
[data-theme="dark"] .eco-center .eco-box {
    background:
        radial-gradient(circle at 30% 30%, rgba(45,140,255,0.30), transparent 70%),
        rgba(8,102,255,0.12);
}
.eco-center .eco-box::before {
    content: "";
    position: absolute;
    inset: 8px;
    border: 1px solid rgba(45,140,255,0.3);
    border-radius: 10px;
}
.eco-center h3 {
    font-family: var(--font-mono);
    font-size: clamp(1rem, 1.6vw, 1.3rem);
    letter-spacing: 0.22em;
    color: var(--white);
    text-transform: uppercase;
}
.eco-center small {
    display: block;
    margin-top: 6px;
    font-size: 0.62rem;
    letter-spacing: 0.3em;
    color: var(--silver-soft);
}

/* ---------- GRMS / Energy feature ---------- */
.feature-split {
    display: grid;
    grid-template-columns: 1fr 1.05fr;
    gap: clamp(32px, 5vw, 72px);
    align-items: center;
}
.feature-visual {
    position: relative;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 5 / 4;
    background:
        radial-gradient(500px 350px at 20% 10%, rgba(8,102,255,0.10), transparent 60%),
        linear-gradient(150deg, var(--black-2), #FFFFFF);
    box-shadow: var(--shadow-1);
}
[data-theme="dark"] .feature-visual {
    background:
        radial-gradient(500px 350px at 20% 10%, rgba(8,102,255,0.22), transparent 60%),
        linear-gradient(150deg, var(--black-3), var(--black));
    box-shadow: none;
}
.feature-visual::before {
    content: "";
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(15,23,42,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,23,42,0.04) 1px, transparent 1px);
    background-size: 40px 40px;
}
[data-theme="dark"] .feature-visual::before {
    background-image:
        linear-gradient(rgba(174,183,196,0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(174,183,196,0.06) 1px, transparent 1px);
}
.feature-chips {
    position: absolute;
    inset: 0;
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    gap: 10px;
    align-content: flex-end;
    justify-content: flex-end;
}
.feature-chip {
    padding: 10px 16px;
    background: rgba(255,255,255,0.90);
    border: 1px solid var(--line-blue);
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--white);
    backdrop-filter: blur(6px);
    box-shadow: 0 4px 12px rgba(15,23,42,0.05);
    display: flex;
    align-items: center;
    gap: 8px;
}
[data-theme="dark"] .feature-chip {
    background: rgba(5,7,10,0.7);
    box-shadow: none;
}
.feature-chip .dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--electric);
    box-shadow: 0 0 8px var(--electric);
}

/* Energy dashboard mock */
.energy-dashboard {
    position: relative;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: linear-gradient(160deg, #FFFFFF, var(--black-2));
    padding: 22px;
    aspect-ratio: 5 / 4;
    box-shadow: var(--shadow-1);
}
[data-theme="dark"] .energy-dashboard {
    background: linear-gradient(160deg, var(--black-3), var(--black));
    box-shadow: none;
}
.energy-dashboard::before {
    content: "";
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(15,23,42,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,23,42,0.04) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
}
[data-theme="dark"] .energy-dashboard::before {
    background-image:
        linear-gradient(rgba(174,183,196,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(174,183,196,0.05) 1px, transparent 1px);
}
.ed-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
    position: relative;
}
.ed-head h5 {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.18em;
    color: var(--white);
    text-transform: uppercase;
}
.ed-head .ed-live {
    font-family: var(--font-mono);
    font-size: 0.66rem;
    letter-spacing: 0.18em;
    color: var(--electric);
    display: flex; align-items: center; gap: 6px;
}
.ed-head .ed-live::before {
    content: ""; width: 6px; height: 6px; border-radius: 50%;
    background: var(--electric); box-shadow: 0 0 8px var(--electric);
    animation: ecoPulse 1.6s var(--ease) infinite;
}
.ed-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 14px;
    position: relative;
}
.ed-card {
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 14px;
    background: rgba(255,255,255,0.02);
}
.ed-card .ed-label {
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.18em;
    color: var(--silver-soft);
    text-transform: uppercase;
}
.ed-card .ed-val {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--white);
    margin-top: 4px;
}
.ed-card .ed-val small { font-size: 0.7rem; color: var(--electric); font-weight: 500; margin-left: 4px; }
.ed-bars { display: flex; align-items: flex-end; gap: 6px; height: 60px; margin-top: 10px; }
.ed-bars span {
    flex: 1;
    background: linear-gradient(180deg, var(--electric), var(--blue));
    border-radius: 2px;
    opacity: 0.85;
}
.ed-zones { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.ed-zone {
    display: flex; justify-content: space-between; align-items: center;
    font-size: 0.72rem; color: var(--silver);
    font-family: var(--font-mono);
}
.ed-zone .bar {
    flex: 1; height: 4px; margin: 0 10px;
    background: var(--line); border-radius: 2px; overflow: hidden;
}
.ed-zone .bar i { display: block; height: 100%; background: var(--electric); }
.ed-note {
    margin-top: 14px;
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.14em;
    color: var(--silver-soft);
    text-transform: uppercase;
    text-align: right;
}

/* ---------- Industries ---------- */
.industry-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}
.industry-card {
    position: relative;
    padding: 28px 22px;
    background: var(--surface-1);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(15,23,42,0.04);
    transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
    display: flex;
    flex-direction: column;
    min-height: 200px;
}
.industry-card:hover {
    border-color: var(--line-blue);
    background: var(--surface-1);
    box-shadow: 0 12px 28px -6px rgba(8,102,255,0.12);
    transform: translateY(-3px);
}
[data-theme="dark"] .industry-card {
    box-shadow: none;
}
[data-theme="dark"] .industry-card:hover {
    background: rgba(45,140,255,0.05);
    box-shadow: none;
}
.industry-card .ind-num {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--silver-soft);
    letter-spacing: 0.2em;
}
.industry-card h4 {
    margin-top: 14px;
    font-size: 1.1rem;
    letter-spacing: 0.06em;
    color: var(--white);
}
.industry-card p {
    margin-top: 10px;
    font-size: 0.84rem;
    color: var(--silver);
    line-height: 1.55;
}
.industry-card::after {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 40px; height: 2px;
    background: var(--electric);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--dur-fast) var(--ease);
}
.industry-card:hover::after { transform: scaleX(1); }

/* ---------- How we work (timeline) ---------- */
.timeline {
    position: relative;
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 18px;
}
.timeline::before {
    content: "";
    position: absolute;
    top: 36px; left: 4%; right: 4%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--line-strong) 8%, var(--line-strong) 92%, transparent);
}
.tl-step {
    position: relative;
    padding-top: 70px;
}
.tl-step .tl-num {
    position: absolute;
    top: 0; left: 0;
    width: 44px; height: 44px;
    border-radius: 50%;
    background: var(--surface-1);
    border: 1px solid var(--line-blue);
    display: grid; place-items: center;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--electric);
    box-shadow: 0 0 0 6px var(--black), 0 2px 8px rgba(15,23,42,0.06);
}
[data-theme="dark"] .tl-step .tl-num {
    box-shadow: 0 0 0 6px rgba(5,7,10,1);
}
.tl-step h4 {
    margin-top: 14px;
    font-size: 1rem;
    letter-spacing: 0.06em;
    color: var(--white);
}
.tl-step p {
    margin-top: 8px;
    font-size: 0.86rem;
    color: var(--silver);
    line-height: 1.55;
}

/* ---------- Projects ---------- */
.proj-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 32px;
}
.proj-filter {
    padding: 9px 16px;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--silver);
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface-1);
    cursor: pointer;
    transition: all var(--dur-fast) var(--ease);
}
.proj-filter:hover { color: var(--white); border-color: var(--line-blue); }
.proj-filter.active { color: var(--white); border-color: var(--electric); background: rgba(45,140,255,0.12); }

.proj-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}
.proj-card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--surface-1);
    box-shadow: 0 1px 3px rgba(15,23,42,0.04);
    transition: border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
    display: flex;
    flex-direction: column;
}
.proj-card:hover {
    border-color: var(--line-blue);
    transform: translateY(-4px);
    box-shadow: 0 14px 30px -8px rgba(8,102,255,0.14);
}
[data-theme="dark"] .proj-card {
    box-shadow: none;
}
[data-theme="dark"] .proj-card:hover {
    box-shadow: none;
}
.proj-thumb {
    aspect-ratio: 16 / 11;
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(300px 200px at 70% 20%, rgba(8,102,255,0.12), transparent 60%),
        linear-gradient(135deg, var(--black-2), #FFFFFF);
    border-bottom: 1px solid var(--line);
}
[data-theme="dark"] .proj-thumb {
    background:
        radial-gradient(300px 200px at 70% 20%, rgba(8,102,255,0.30), transparent 60%),
        linear-gradient(135deg, var(--black-3), var(--black-2));
}
.proj-thumb img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--dur) var(--ease);
}
.proj-card:hover .proj-thumb img {
    transform: scale(1.04);
}
.proj-thumb::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(5,7,10,0.15) 0%, rgba(5,7,10,0.45) 100%);
    pointer-events: none;
    z-index: 1;
}
.proj-thumb:not(:has(img))::before {
    content: "";
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(15,23,42,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,23,42,0.04) 1px, transparent 1px);
    background-size: 28px 28px;
}
[data-theme="dark"] .proj-thumb:not(:has(img))::before {
    background-image:
        linear-gradient(rgba(174,183,196,0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(174,183,196,0.08) 1px, transparent 1px);
}
.proj-thumb .pt-cat {
    position: absolute;
    top: 14px; left: 14px;
    z-index: 2;
    padding: 5px 11px;
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--electric);
    background: rgba(255,255,255,0.92);
    border: 1px solid var(--line-blue);
    border-radius: 4px;
    backdrop-filter: blur(6px);
    box-shadow: 0 2px 8px rgba(15,23,42,0.06);
}
[data-theme="dark"] .proj-thumb .pt-cat {
    background: rgba(5,7,10,0.8);
    box-shadow: none;
}
.proj-thumb .pt-icon {
    position: absolute; inset: 0;
    display: grid; place-items: center;
    color: rgba(45,140,255,0.4);
}
.proj-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.proj-body h4 { font-size: 1.05rem; color: var(--white); }
.proj-meta {
    margin-top: 10px;
    display: flex; flex-wrap: wrap; gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    color: var(--silver-soft);
    text-transform: uppercase;
}
.proj-meta span { display: inline-flex; align-items: center; gap: 6px; }
.proj-meta span::before { content: ""; width: 4px; height: 4px; border-radius: 50%; background: var(--electric); }
.proj-body p { margin-top: 12px; font-size: 0.88rem; color: var(--silver); line-height: 1.55; }
.proj-tags { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 6px; }
.proj-tags span {
    font-family: var(--font-mono);
    font-size: 0.66rem;
    letter-spacing: 0.1em;
    color: var(--silver);
    padding: 4px 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
}

.proj-demo-note {
    margin-top: 28px;
    padding: 16px 20px;
    border: 1px dashed var(--line-strong);
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.02);
    font-family: var(--font-mono);
    font-size: 0.76rem;
    letter-spacing: 0.08em;
    color: var(--silver);
    text-align: center;
}
.proj-demo-note b { color: var(--electric); }

/* ---------- Case study ---------- */
.case-study {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
}
.case-cover {
    margin-bottom: 18px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--line);
    aspect-ratio: 16 / 10;
}
.case-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.case-meta {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px;
    background: var(--surface-1);
    position: sticky; top: 110px;
}
.case-meta dl { display: grid; gap: 18px; }
.case-meta dt {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.22em;
    color: var(--silver-soft);
    text-transform: uppercase;
}
.case-meta dd { margin: 4px 0 0; color: var(--white); font-size: 0.95rem; }
.case-body h3 {
    font-size: 1.4rem; margin-top: 28px;
}
.case-body h3:first-child { margin-top: 0; }
.case-body p { margin-top: 12px; color: var(--silver); }
.case-body ul.bullets { margin-top: 12px; display: grid; gap: 8px; }
.case-body ul.bullets li {
    padding-left: 22px;
    position: relative;
    color: var(--silver);
    font-size: 0.95rem;
}
.case-body ul.bullets li::before {
    content: "—"; position: absolute; left: 0; color: var(--electric);
}

/* ---------- Why Techbox ---------- */
.why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}
.why-card {
    padding: 32px 28px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-1);
    box-shadow: 0 1px 3px rgba(15,23,42,0.04);
    transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.why-card:hover {
    border-color: var(--line-blue);
    background: var(--surface-1);
    box-shadow: 0 12px 28px -6px rgba(8,102,255,0.12);
    transform: translateY(-2px);
}
[data-theme="dark"] .why-card {
    box-shadow: none;
}
[data-theme="dark"] .why-card:hover {
    background: rgba(45,140,255,0.04);
    box-shadow: none;
}
.why-card .wc-num {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--electric);
    letter-spacing: 0.2em;
}
.why-card h4 {
    margin-top: 14px;
    font-size: 1.1rem;
    color: var(--white);
    letter-spacing: 0.04em;
}
.why-card p {
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--silver);
    line-height: 1.6;
}

/* ---------- FAQ ---------- */
.faq-list { max-width: 880px; margin-inline: auto; }
.faq-item {
    border-bottom: 1px solid var(--line);
}
.faq-q {
    width: 100%;
    text-align: left;
    padding: 26px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    font-size: 1.05rem;
    color: var(--white);
    font-weight: 600;
    letter-spacing: 0.01em;
    transition: color var(--dur-fast) var(--ease);
}
.faq-q:hover { color: var(--electric); }
.faq-q .faq-icon {
    width: 26px; height: 26px;
    flex-shrink: 0;
    border: 1px solid var(--line-strong);
    border-radius: 50%;
    position: relative;
    transition: border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.faq-q .faq-icon::before, .faq-q .faq-icon::after {
    content: ""; position: absolute;
    background: var(--electric);
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
}
.faq-q .faq-icon::before { width: 10px; height: 1px; }
.faq-q .faq-icon::after { width: 1px; height: 10px; transition: transform var(--dur-fast) var(--ease); }
.faq-item.open .faq-q .faq-icon { border-color: var(--electric); }
.faq-item.open .faq-q .faq-icon::after { transform: translate(-50%, -50%) scaleY(0); }
.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s var(--ease);
}
.faq-a-inner {
    padding: 0 0 26px;
    color: var(--silver);
    max-width: 760px;
    font-size: 0.96rem;
    line-height: 1.7;
}

/* ---------- CTA section ---------- */
.cta-section {
    position: relative;
    background:
        radial-gradient(900px 500px at 20% 20%, rgba(8,102,255,0.10), transparent 60%),
        radial-gradient(700px 400px at 90% 90%, rgba(0,98,230,0.06), transparent 60%),
        var(--black-2);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    overflow: hidden;
}
[data-theme="dark"] .cta-section {
    background:
        radial-gradient(900px 500px at 20% 20%, rgba(8,102,255,0.28), transparent 60%),
        radial-gradient(700px 400px at 90% 90%, rgba(45,140,255,0.18), transparent 60%),
        var(--black);
}
.cta-section::before {
    content: "";
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(15,23,42,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,23,42,0.04) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, #000 30%, transparent 80%);
}
[data-theme="dark"] .cta-section::before {
    background-image:
        linear-gradient(rgba(174,183,196,0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(174,183,196,0.06) 1px, transparent 1px);
}
.cta-inner { position: relative; z-index: 2; text-align: center; }
.cta-inner h2 { font-size: clamp(2rem, 5vw, 3.6rem); }
.cta-inner .lead { margin: 22px auto 0; max-width: 580px; }
.cta-buttons {
    margin-top: 38px;
    display: flex; flex-wrap: wrap; gap: 14px; justify-content: center;
}

/* ---------- Forms ---------- */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--silver);
}
.field label .req { color: var(--electric); }
.field input, .field select, .field textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--surface-1);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius-sm);
    color: var(--white);
    font-size: 0.95rem;
    transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
    font-family: var(--font-sans);
}
.field textarea { resize: vertical; min-height: 140px; line-height: 1.6; }
.field input::placeholder, .field textarea::placeholder { color: var(--silver-soft); }
.field input:focus, .field select:focus, .field textarea:focus {
    outline: none;
    border-color: var(--electric);
    background: var(--surface-1);
    box-shadow: 0 0 0 3px rgba(8,102,255,0.14);
}
.field select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%230062E6' d='M6 8 0 0h12z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 10px;
    padding-right: 40px;
}
.field .field-error {
    font-size: 0.78rem;
    color: #FF6B6B;
    display: none;
}
.field.has-error input, .field.has-error select, .field.has-error textarea {
    border-color: #FF6B6B;
}
.field.has-error .field-error { display: block; }

/* Checkbox group */
.check-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}
.check-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: var(--surface-1);
    transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.check-item:hover { border-color: var(--line-blue); background: rgba(45,140,255,0.04); }
.check-item input { position: absolute; opacity: 0; pointer-events: none; }
.check-item .check-box {
    width: 18px; height: 18px;
    border: 1px solid var(--line-strong);
    border-radius: 4px;
    flex-shrink: 0;
    display: grid; place-items: center;
    transition: all var(--dur-fast) var(--ease);
}
.check-item .check-box::after {
    content: "";
    width: 8px; height: 8px;
    background: var(--electric);
    border-radius: 2px;
    transform: scale(0);
    transition: transform var(--dur-fast) var(--ease);
}
.check-item input:checked ~ .check-box { border-color: var(--electric); }
.check-item input:checked ~ .check-box::after { transform: scale(1); }
.check-item input:checked ~ span { color: var(--white); }
.check-item input:focus-visible ~ .check-box { outline: 2px solid var(--electric); outline-offset: 2px; }
.check-item span { font-size: 0.9rem; color: var(--silver); }

/* File upload */
.file-drop {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    box-sizing: border-box;
    border: 1px dashed var(--line-strong);
    border-radius: var(--radius-sm);
    padding: 32px 24px;
    text-align: center;
    background: var(--surface-1);
    transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
    cursor: pointer;
}
.file-drop:hover { border-color: var(--line-blue); background: rgba(45,140,255,0.04); }
.file-drop:focus-within { border-color: var(--electric); box-shadow: 0 0 0 3px rgba(8,102,255,0.14); }
.file-drop input { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.file-drop .fd-icon {
    display: grid;
    place-items: center;
    color: var(--electric);
    margin-bottom: 12px;
    flex-shrink: 0;
}
.file-drop .fd-text { font-size: 0.9rem; color: var(--silver); line-height: 1.45; }
.file-drop .fd-text b { color: var(--white); }
.file-drop .fd-hint {
    margin-top: 8px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    color: var(--silver-soft);
    text-transform: uppercase;
}
.file-list { margin-top: 12px; display: flex; flex-direction: column; gap: 8px; }
.file-item {
    display: flex; align-items: center; justify-content: space-between;
    padding: 10px 14px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--surface-1);
    font-size: 0.84rem;
    color: var(--silver);
}
.file-item button { color: var(--silver-soft); padding: 2px 6px; }
.file-item button:hover { color: #FF6B6B; }

.form-section {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: clamp(24px, 3vw, 36px);
    background: var(--surface-1);
    margin-bottom: 22px;
}
.form-section h3 {
    font-size: 1.15rem;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 22px;
    display: flex; align-items: center; gap: 12px;
}
.form-section h3 .fs-num {
    font-family: var(--font-mono);
    font-size: 0.74rem;
    color: var(--electric);
    letter-spacing: 0.2em;
}
.form-actions {
    display: flex; flex-wrap: wrap; gap: 14px; align-items: center;
    justify-content: space-between;
}
.form-note {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    color: var(--silver-soft);
    text-transform: uppercase;
}

.form-success {
    display: none;
    padding: 32px;
    border: 1px solid var(--line-blue);
    border-radius: var(--radius);
    background: rgba(45,140,255,0.06);
    text-align: center;
}
.form-success.show { display: block; }
.form-success svg { color: var(--electric); margin-bottom: 14px; }
.form-success h3 { font-size: 1.4rem; }
.form-success p { margin-top: 10px; color: var(--silver); }

/* ---------- Contact ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
}
.contact-info { display: grid; gap: 14px; }
.contact-card {
    display: flex;
    gap: 18px;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-1);
    box-shadow: 0 1px 3px rgba(15,23,42,0.04);
    transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.contact-card:hover {
    border-color: var(--line-blue);
    box-shadow: 0 10px 24px -6px rgba(8,102,255,0.12);
}
[data-theme="dark"] .contact-card {
    box-shadow: none;
}
.contact-card .cc-icon {
    width: 44px; height: 44px;
    flex-shrink: 0;
    border: 1px solid var(--line-blue);
    border-radius: 10px;
    display: grid; place-items: center;
    color: var(--electric);
    background: rgba(8,102,255,0.06);
}
.contact-card .cc-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    color: var(--silver-soft);
    text-transform: uppercase;
}
.contact-card .cc-value {
    margin-top: 4px;
    font-size: 1rem;
    color: var(--white);
}
.contact-card .cc-value a:hover { color: var(--electric); }
.contact-card .cc-sub { margin-top: 4px; font-size: 0.82rem; color: var(--silver-soft); }

.map-area {
    margin-top: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    aspect-ratio: 16 / 7;
    background:
        radial-gradient(500px 300px at 60% 40%, rgba(8,102,255,0.08), transparent 60%),
        var(--black-2);
    position: relative;
    box-shadow: var(--shadow-1);
}
[data-theme="dark"] .map-area {
    background:
        radial-gradient(500px 300px at 60% 40%, rgba(8,102,255,0.18), transparent 60%),
        var(--black-2);
    box-shadow: none;
}
.map-area::before {
    content: "";
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(15,23,42,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,23,42,0.04) 1px, transparent 1px);
    background-size: 40px 40px;
}
[data-theme="dark"] .map-area::before {
    background-image:
        linear-gradient(rgba(174,183,196,0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(174,183,196,0.08) 1px, transparent 1px);
}
.map-pin {
    position: absolute;
    top: 45%; left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}
.map-pin .pin-dot {
    width: 14px; height: 14px;
    background: var(--electric);
    border-radius: 50%;
    margin: 0 auto;
    box-shadow: 0 0 0 8px rgba(8,102,255,0.18), 0 0 20px var(--electric);
    animation: ecoPulse 2s var(--ease) infinite;
}
.map-pin .pin-label {
    margin-top: 12px;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--white);
    background: rgba(255,255,255,0.92);
    padding: 6px 12px;
    border: 1px solid var(--line-blue);
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(15,23,42,0.06);
}
[data-theme="dark"] .map-pin .pin-label {
    color: var(--silver);
    background: rgba(5,7,10,0.8);
    box-shadow: none;
}

/* ---------- Sticky mobile CTA ---------- */
.mobile-cta {
    display: none;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 90;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(14px);
    border-top: 1px solid var(--line);
    padding: 10px 12px;
    gap: 8px;
    box-shadow: 0 -4px 16px rgba(15,23,42,0.06);
}
[data-theme="dark"] .mobile-cta {
    background: rgba(5,7,10,0.95);
    box-shadow: none;
}
.mobile-cta a {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px 6px;
    font-family: var(--font-mono);
    font-size: 0.62rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--silver);
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface-1);
    transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.mobile-cta a svg { width: 18px; height: 18px; }
.mobile-cta a:hover { color: var(--white); border-color: var(--line-blue); }
.mobile-cta a.primary { color: var(--white); border-color: var(--electric); background: rgba(45,140,255,0.12); }
.mobile-cta a.primary svg { color: var(--electric); }

/* ---------- Footer ---------- */
.site-footer {
    background: var(--black-2);
    border-top: 1px solid var(--line);
    padding-top: clamp(60px, 7vw, 90px);
    position: relative;
    overflow: hidden;
}
.site-footer::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--electric), transparent);
    opacity: 0.5;
}
.footer-tagline {
    text-align: center;
    padding-bottom: 50px;
    border-bottom: 1px solid var(--line);
}
.footer-tagline h2 {
    font-family: var(--font-mono);
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--white);
}
.footer-tagline h2 .accent { color: var(--electric); }
.footer-tagline p { margin-top: 14px; color: var(--silver); max-width: 620px; margin-inline: auto; }

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-block: 50px;
}
.footer-brand .logo { margin-bottom: 18px; }
.footer-brand p { color: var(--silver); font-size: 0.9rem; max-width: 320px; }
.footer-col h5 {
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.22em;
    color: var(--silver-soft);
    text-transform: uppercase;
    margin-bottom: 18px;
    font-weight: 600;
}
.footer-col ul { display: grid; gap: 10px; }
.footer-col ul a {
    color: var(--silver);
    font-size: 0.9rem;
    transition: color var(--dur-fast) var(--ease);
}
.footer-col ul a:hover { color: var(--electric); }
.footer-contact li {
    color: var(--silver);
    font-size: 0.88rem;
    display: flex;
    gap: 10px;
    align-items: flex-start;
}
.footer-contact li svg { color: var(--electric); flex-shrink: 0; margin-top: 3px; }
.footer-contact li a:hover { color: var(--electric); }

.footer-bottom {
    border-top: 1px solid var(--line);
    padding-block: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    letter-spacing: 0.1em;
    color: var(--silver-soft);
}
.footer-bottom a:hover { color: var(--electric); }
.footer-bottom .fb-links { display: flex; gap: 18px; flex-wrap: wrap; }

/* ---------- Service detail page ---------- */
.service-hero-visual {
    margin-top: 50px;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 21 / 8;
    background:
        radial-gradient(700px 400px at 80% 20%, rgba(8,102,255,0.10), transparent 60%),
        linear-gradient(135deg, var(--black-2), #FFFFFF);
    position: relative;
    box-shadow: var(--shadow-1);
}
[data-theme="dark"] .service-hero-visual {
    background:
        radial-gradient(700px 400px at 80% 20%, rgba(8,102,255,0.25), transparent 60%),
        linear-gradient(135deg, var(--black-3), var(--black-2));
    box-shadow: none;
}
.service-hero-visual::before {
    content: "";
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(15,23,42,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,23,42,0.04) 1px, transparent 1px);
    background-size: 40px 40px;
}
[data-theme="dark"] .service-hero-visual::before {
    background-image:
        linear-gradient(rgba(174,183,196,0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(174,183,196,0.06) 1px, transparent 1px);
}

.service-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}
.sf-card {
    padding: 28px 24px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-1);
    box-shadow: 0 1px 3px rgba(15,23,42,0.04);
    transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.sf-card:hover {
    border-color: var(--line-blue);
    background: var(--surface-1);
    box-shadow: 0 12px 28px -6px rgba(8,102,255,0.12);
    transform: translateY(-2px);
}
[data-theme="dark"] .sf-card {
    box-shadow: none;
}
[data-theme="dark"] .sf-card:hover {
    background: rgba(45,140,255,0.04);
    box-shadow: none;
}
.sf-card .sf-num {
    font-family: var(--font-mono);
    font-size: 0.74rem;
    color: var(--electric);
    letter-spacing: 0.2em;
}
.sf-card h4 { margin-top: 12px; font-size: 1.05rem; color: var(--white); }
.sf-card p { margin-top: 10px; font-size: 0.88rem; color: var(--silver); line-height: 1.6; }

.service-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--surface-1);
    box-shadow: 0 1px 3px rgba(15,23,42,0.04);
}
.service-list .sl-item {
    padding: 22px 26px;
    border-bottom: 1px solid var(--line);
    border-right: 1px solid var(--line);
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--surface-1);
    transition: background var(--dur-fast) var(--ease);
}
.service-list .sl-item:hover { background: rgba(8,102,255,0.04); }
.service-list .sl-item:nth-child(2n) { border-right: 0; }
.service-list .sl-item:last-child, .service-list .sl-item:nth-last-child(2):nth-child(odd) { border-bottom: 0; }
.service-list .sl-icon {
    width: 32px; height: 32px;
    flex-shrink: 0;
    border: 1px solid var(--line-blue);
    border-radius: 6px;
    display: grid; place-items: center;
    color: var(--electric);
    background: rgba(8,102,255,0.06);
}
.service-list .sl-item span { color: var(--white); font-size: 0.95rem; }

.related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
}
.related-card {
    padding: 22px 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface-1);
    box-shadow: 0 1px 3px rgba(15,23,42,0.04);
    transition: all var(--dur-fast) var(--ease);
    display: flex; flex-direction: column; gap: 8px;
}
.related-card:hover {
    border-color: var(--line-blue);
    transform: translateY(-3px);
    box-shadow: 0 12px 28px -6px rgba(8,102,255,0.12);
}
[data-theme="dark"] .related-card {
    box-shadow: none;
}
.related-card .rc-num { font-family: var(--font-mono); font-size: 0.7rem; color: var(--electric); letter-spacing: 0.18em; }
.related-card h4 { font-size: 0.98rem; color: var(--white); }
.related-card .rc-arrow { margin-top: auto; font-family: var(--font-mono); font-size: 0.7rem; color: var(--silver-soft); letter-spacing: 0.14em; }

/* ---------- About page ---------- */
.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--surface-1);
    box-shadow: 0 1px 3px rgba(15,23,42,0.04);
}
.about-stat {
    padding: 36px 28px;
    border-right: 1px solid var(--line);
    text-align: center;
}
.about-stat:last-child { border-right: 0; }
.about-stat h4 {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.2em;
    color: var(--electric);
    text-transform: uppercase;
}
.about-stat p { margin-top: 10px; font-size: 0.9rem; color: var(--silver); }

.value-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}