/* =====================================================================
   CORE MATRIX — Design System 2026
   Evolution of the navy + cyan brand toward a premium, top-player look.
   Single source of truth for tokens, typography, layout & components.
   ===================================================================== */

/* ------------------------------------------------------------------ */
/* 1. DESIGN TOKENS                                                     */
/* ------------------------------------------------------------------ */
:root {
    /* Surfaces — deeper, richer navy with more contrast steps */
    --bg-900: #080d20;          /* near-black navy (page base)        */
    --bg-800: #0b1228;          /* primary background                 */
    --bg-700: #111a3a;          /* elevated section                   */
    --bg-600: #16224b;          /* alternate section                  */
    --bg-500: #1d2c5e;          /* accent surface                     */

    /* Brand — electric cyan */
    --cyan-300: #7fe7f3;
    --cyan-400: #4dd0e1;
    --cyan-500: #00bcd4;
    --cyan-600: #0097a7;
    --violet-500: #6c5ce7;      /* secondary accent for AI / labs     */
    --violet-400: #8f7bff;

    /* Signature gradients */
    --grad-brand: linear-gradient(135deg, #00bcd4 0%, #0097a7 100%);
    --grad-brand-soft: linear-gradient(135deg, #4dd0e1 0%, #00bcd4 100%);
    --grad-aurora: linear-gradient(120deg, #00bcd4 0%, #4dd0e1 40%, #6c5ce7 100%);
    --grad-text: linear-gradient(120deg, #ffffff 0%, #9fe9f3 60%, #4dd0e1 100%);
    --grad-surface: linear-gradient(180deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.015) 100%);

    /* Glass */
    --glass-bg: rgba(255, 255, 255, 0.045);
    --glass-bg-strong: rgba(255, 255, 255, 0.07);
    --glass-border: rgba(120, 200, 220, 0.16);
    --glass-border-hover: rgba(0, 188, 212, 0.55);

    /* Text */
    --text-1: #f4f8ff;          /* primary    */
    --text-2: #aebbd6;          /* secondary  */
    --text-3: #7e8bab;          /* muted      */

    /* Shadows / glows */
    --glow-cyan: 0 0 0 1px rgba(0,188,212,0.18), 0 24px 60px -18px rgba(0,188,212,0.45);
    --shadow-md: 0 18px 48px -16px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 40px 90px -28px rgba(0, 0, 0, 0.75);

    /* Radii */
    --r-sm: 12px;
    --r-md: 18px;
    --r-lg: 26px;
    --r-xl: 34px;
    --r-pill: 999px;

    /* Layout */
    --container: 1240px;
    --container-narrow: 920px;
    --gutter: clamp(1.2rem, 4vw, 2.4rem);

    /* Motion */
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --t-fast: 0.25s;
    --t: 0.45s;

    /* Type */
    --font-sans: 'Inter', 'Segoe UI', Tahoma, system-ui, sans-serif;
    --font-display: 'Sora', 'Inter', system-ui, sans-serif;
}

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/* 2. RESET & BASE                                                      */
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*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--font-sans);
    color: var(--text-1);
    background: var(--bg-900);
    line-height: 1.65;
    font-weight: 400;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Ambient page background: layered radial auroras + fine grid */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -2;
    background:
        radial-gradient(60% 50% at 15% 0%, rgba(0,188,212,0.12), transparent 60%),
        radial-gradient(50% 45% at 100% 10%, rgba(108,92,231,0.12), transparent 55%),
        radial-gradient(60% 60% at 50% 110%, rgba(0,151,167,0.10), transparent 60%),
        linear-gradient(180deg, var(--bg-900) 0%, var(--bg-800) 40%, var(--bg-900) 100%);
}
body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -2;
    background-image:
        linear-gradient(rgba(120,180,210,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(120,180,210,0.035) 1px, transparent 1px);
    background-size: 64px 64px;
    -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 75%);
            mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 75%);
    opacity: 0.6;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

::selection { background: rgba(0,188,212,0.35); color: #fff; }

/* Scrollbar */
::-webkit-scrollbar { width: 11px; }
::-webkit-scrollbar-track { background: var(--bg-900); }
::-webkit-scrollbar-thumb {
    background: linear-gradient(var(--cyan-600), var(--bg-600));
    border-radius: 10px;
    border: 2px solid var(--bg-900);
}

/* ------------------------------------------------------------------ */
/* 3. LAYOUT HELPERS                                                    */
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.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding-inline: var(--gutter);
}
.container-narrow { max-width: var(--container-narrow); }

.section {
    position: relative;
    padding: clamp(4.5rem, 9vw, 8rem) 0;
}
.section--tight { padding: clamp(3rem, 6vw, 5rem) 0; }

/* subtle hairline divider between sections */
.section--divider { border-top: 1px solid rgba(120,180,210,0.07); }

/* ------------------------------------------------------------------ */
/* 4. TYPOGRAPHY                                                        */
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.display {
    font-family: var(--font-display);
    font-weight: 800;
    line-height: 1.04;
    letter-spacing: -0.025em;
    font-size: clamp(2.6rem, 6.4vw, 5.2rem);
}
.h1 {
    font-family: var(--font-display);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.02em;
    font-size: clamp(2.1rem, 4.6vw, 3.5rem);
}
.h2 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.12;
    letter-spacing: -0.015em;
    font-size: clamp(1.7rem, 3.4vw, 2.6rem);
}
.h3 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(1.15rem, 1.6vw, 1.4rem);
    letter-spacing: -0.01em;
}

.text-gradient {
    background: var(--grad-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.text-cyan {
    background: var(--grad-brand-soft);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.lead {
    font-size: clamp(1.05rem, 1.5vw, 1.28rem);
    color: var(--text-2);
    line-height: 1.7;
    font-weight: 400;
}
.muted { color: var(--text-3); }

/* Section heading block */
.section-head {
    max-width: 760px;
    margin: 0 auto clamp(2.4rem, 5vw, 4rem);
    text-align: center;
}
.section-head.left { margin-inline: 0; text-align: left; }
.section-head .lead { margin-top: 1.1rem; }

/* Eyebrow / kicker pill */
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--cyan-300);
    padding: 0.5rem 1rem;
    border: 1px solid var(--glass-border);
    border-radius: var(--r-pill);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    margin-bottom: 1.2rem;
}
.eyebrow::before {
    content: "";
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--cyan-400);
    box-shadow: 0 0 12px var(--cyan-400);
}

/* ------------------------------------------------------------------ */
/* 5. BUTTONS                                                           */
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.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1rem;
    line-height: 1;
    padding: 1rem 1.7rem;
    border-radius: var(--r-pill);
    border: 1px solid transparent;
    transition: transform var(--t-fast) var(--ease), box-shadow var(--t) var(--ease), background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
    will-change: transform;
}
.btn svg { width: 1.1em; height: 1.1em; }

.btn--primary {
    background: var(--grad-brand);
    color: #04121b;
    box-shadow: 0 14px 34px -10px rgba(0,188,212,0.6);
}
.btn--primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 22px 46px -10px rgba(0,188,212,0.75);
}
.btn--ghost {
    background: var(--glass-bg);
    color: var(--text-1);
    border-color: var(--glass-border);
    backdrop-filter: blur(10px);
}
.btn--ghost:hover {
    transform: translateY(-3px);
    border-color: var(--glass-border-hover);
    background: var(--glass-bg-strong);
}
.btn--lg { padding: 1.15rem 2.1rem; font-size: 1.08rem; }
.btn--sm { padding: 0.7rem 1.2rem; font-size: 0.9rem; }

/* text link with animated arrow */
.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--cyan-300);
    transition: gap var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.link-arrow:hover { gap: 0.8rem; color: var(--cyan-400); }

/* ------------------------------------------------------------------ */
/* 6. GLASS CARD (base component)                                       */
/* ------------------------------------------------------------------ */
.card {
    position: relative;
    background: var(--grad-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--r-lg);
    padding: 2rem;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    transition: transform var(--t) var(--ease), border-color var(--t-fast) var(--ease), box-shadow var(--t) var(--ease), background var(--t-fast) var(--ease);
    overflow: hidden;
}
/* sheen sweep on hover */
.card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(0,188,212,0.5), transparent 40%, transparent 60%, rgba(108,92,231,0.4));
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
            mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--t) var(--ease);
    pointer-events: none;
}
.card:hover {
    transform: translateY(-8px);
    border-color: var(--glass-border-hover);
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(0,188,212,0.12);
    background: var(--glass-bg-strong);
}
.card:hover::before { opacity: 1; }
.card--link { cursor: pointer; }

/* ------------------------------------------------------------------ */
/* 7. SCROLL-REVEAL ANIMATION                                           */
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.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
    transition-delay: var(--reveal-delay, 0s);
    will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
    * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
    .reveal { opacity: 1; transform: none; }
}

/* ------------------------------------------------------------------ */
/* 8. UTILITIES                                                         */
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.grid { display: grid; gap: clamp(1.1rem, 2vw, 1.6rem); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.flow > * + * { margin-top: 1rem; }
.center { text-align: center; }
.stack-cta { display: flex; flex-wrap: wrap; gap: 1rem; }
.stack-cta.center { justify-content: center; }

@media (max-width: 980px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ==================================================================== */
/* 9. SERVICE / CONTENT PAGE COMPONENTS (shared across inner pages)      */
/* ==================================================================== */
/* Service hero */
.svc-hero { position: relative; padding: clamp(8rem, 16vh, 11rem) 0 clamp(3rem, 6vw, 5rem); overflow: hidden; }
.svc-hero-orb { position:absolute; width:520px; height:520px; border-radius:50%; top:-15%; right:-8%; background:radial-gradient(circle, rgba(0,188,212,.4), transparent 70%); filter:blur(60px); z-index:-1; animation: floatX 16s ease-in-out infinite; }
@keyframes floatX { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-26px)} }
.breadcrumb { display:flex; flex-wrap:wrap; gap:.5rem; align-items:center; font-size:.85rem; color:var(--text-3); margin-bottom:1.6rem; }
.breadcrumb a:hover { color:var(--cyan-300); }
.svc-hero-grid { display:grid; grid-template-columns:1.1fr .9fr; gap:3rem; align-items:center; }
.svc-hero h1 { margin:1.1rem 0 1.3rem; }
.svc-hero .lead { max-width:54ch; }
.svc-hero-art { aspect-ratio:1; display:grid; place-items:center; position:relative; }
.svc-hero-art .blob { width:78%; aspect-ratio:1; border-radius:38% 62% 55% 45% / 48% 38% 62% 52%; background:var(--grad-aurora); filter:blur(2px); opacity:.92; box-shadow:0 0 80px rgba(0,188,212,.45); animation: morph 12s ease-in-out infinite; display:grid; place-items:center; }
@keyframes morph { 0%,100%{border-radius:38% 62% 55% 45% / 48% 38% 62% 52%; transform:rotate(0)} 50%{border-radius:55% 45% 40% 60% / 55% 52% 48% 45%; transform:rotate(8deg)} }
.svc-hero-art .glyph { font-size:6rem; filter:drop-shadow(0 6px 20px rgba(0,0,0,.4)); }
@media (max-width:900px){ .svc-hero-grid{ grid-template-columns:1fr; } .svc-hero-art{ display:none; } }

/* Tech chips */
.tech-cloud { display:flex; flex-wrap:wrap; gap:.8rem; justify-content:center; }
.tech-chip { display:inline-flex; align-items:center; gap:.5rem; padding:.7rem 1.3rem; border-radius:999px; background:var(--glass-bg); border:1px solid var(--glass-border); font-family:var(--font-display); font-weight:600; color:var(--text-1); transition:all .3s var(--ease); }
.tech-chip:hover { border-color:var(--glass-border-hover); transform:translateY(-3px); color:var(--cyan-300); }
.tech-chip .d { color:var(--cyan-400); }

/* Feature/use-case card bits */
.fic { width:58px; height:58px; border-radius:15px; display:grid; place-items:center; font-size:1.7rem; margin-bottom:1.1rem; background:linear-gradient(135deg, rgba(0,188,212,.16), rgba(108,92,231,.12)); border:1px solid var(--glass-border); }
.card-title { font-family:var(--font-display); font-weight:700; font-size:1.18rem; margin-bottom:.6rem; }
.card-desc { color:var(--text-2); font-size:.96rem; }

/* Inline highlight banner (e.g. badges within a section head) */
.inline-banner { display:inline-flex; align-items:center; gap:.6rem; padding:.4rem 1rem; border-radius:999px; background:linear-gradient(135deg, rgba(108,92,231,.2), rgba(0,188,212,.14)); border:1px solid var(--glass-border); color:var(--violet-400); font-weight:600; font-size:.82rem; margin-bottom:1rem; }

/* Final CTA band */
.svc-final { position:relative; text-align:center; padding:clamp(3.5rem,7vw,5.5rem); border-radius:var(--r-xl); overflow:hidden; background:linear-gradient(135deg, rgba(0,188,212,.16), rgba(108,92,231,.14)); border:1px solid var(--glass-border); }
.svc-final::before { content:""; position:absolute; width:400px; height:400px; top:-40%; left:50%; transform:translateX(-50%); background:radial-gradient(circle, rgba(0,188,212,.4), transparent 65%); filter:blur(50px); }
.svc-final > * { position:relative; }

/* Tags + go-link (shared with homepage cards) */
.svc-tags { display:flex; flex-wrap:wrap; gap:.4rem; margin:.3rem 0; }
.tag { font-size:.74rem; font-weight:600; padding:.28rem .65rem; border-radius:999px; color:var(--cyan-300); background:rgba(0,188,212,.1); border:1px solid rgba(0,188,212,.18); }
.svc-go { color:var(--cyan-300); font-weight:600; font-family:var(--font-display); font-size:.9rem; display:inline-flex; align-items:center; gap:.4rem; transition:gap var(--t-fast) var(--ease); }
.card:hover .svc-go { gap:.75rem; }

/* Service hero with real image (replaces the emoji blob) */
.svc-hero-media { position: relative; }
.hero-pic { display:block; position:relative; width:100%; aspect-ratio:3/2; border-radius:var(--r-xl); overflow:hidden; border:1px solid var(--glass-border); box-shadow:var(--shadow-lg), 0 0 70px -16px rgba(0,188,212,.5); }
.hero-pic img { width:100%; height:100%; object-fit:cover; display:block; }
.hero-pic::after { content:""; position:absolute; inset:0; background:linear-gradient(155deg, transparent 45%, rgba(8,13,32,.5)); pointer-events:none; }
@media (max-width:900px){ .svc-hero-media{ max-width:520px; margin:1rem auto 0; } }