/* ============================================================
   Webcol Group — Design System
   Tokens, reset, keyframes, reveal utilities
   ============================================================ */

/* ── Tokens ─────────────────────────────────────────────── */
:root {
    /* Colors */
    --color-bg-base:        #09090b;
    --color-bg-surface:     #111113;
    --color-bg-elevated:    #18181b;
    --color-border:         rgba(255, 255, 255, 0.08);
    --color-border-accent:  rgba(6, 182, 212, 0.35);
    --color-accent:         #06b6d4;
    --color-accent-hover:   #22d3ee;
    --color-accent-glow:    rgba(6, 182, 212, 0.20);
    --color-accent-subtle:  rgba(6, 182, 212, 0.08);
    --color-text-primary:   #fafafa;
    --color-text-secondary: #a1a1aa;
    --color-text-muted:     #52525b;
    --color-success:        #22c55e;
    --color-error:          #ef4444;

    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    --text-display:  clamp(2.75rem, 7.5vw, 5.5rem);
    --text-headline: clamp(1.75rem, 4vw, 3rem);
    --text-title:    clamp(1.125rem, 2.5vw, 1.5rem);
    --text-body:     1rem;
    --text-small:    0.875rem;
    --text-xs:       0.75rem;
    --leading-tight: 1.1;
    --leading-snug:  1.35;
    --tracking-tight: -0.03em;
    --tracking-wide:   0.08em;

    /* Spacing */
    --space-section: clamp(5rem, 10vw, 8rem);
    --space-content: clamp(2rem, 5vw, 4rem);
    --container-max: 1280px;
    --container-px:  clamp(1rem, 5vw, 2.5rem);

    /* Radius */
    --radius-sm:   6px;
    --radius-md:   12px;
    --radius-lg:   20px;
    --radius-xl:   28px;
    --radius-full: 9999px;

    /* Transitions */
    --ease-out:      cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out:   cubic-bezier(0.4, 0, 0.2, 1);
    --duration-fast: 150ms;
    --duration-base: 250ms;
    --duration-slow: 500ms;

    /* Shadows */
    --shadow-card:  0 0 0 1px var(--color-border), 0 4px 32px rgba(0, 0, 0, 0.5);
    --glow-accent:  0 0 30px var(--color-accent-glow);
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    background-color: var(--color-bg-base);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    font-size: var(--text-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    letter-spacing: var(--tracking-tight);
    line-height: var(--leading-tight);
    font-weight: 700;
}

a {
    color: inherit;
    text-decoration: none;
}

img, svg, video {
    display: block;
    max-width: 100%;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

ul, ol {
    list-style: none;
}

::selection {
    background: var(--color-accent);
    color: #000;
}

/* Scrollbar */
::-webkit-scrollbar              { width: 6px; }
::-webkit-scrollbar-track        { background: var(--color-bg-base); }
::-webkit-scrollbar-thumb        { background: var(--color-text-muted); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover  { background: var(--color-accent); }

/* ── Layout utilities ────────────────────────────────────── */
.wc-container {
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-px);
}

.wc-section-header {
    text-align: center;
    margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.wc-section-eyebrow {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
}

.wc-section-title {
    font-size: var(--text-headline);
    color: var(--color-text-primary);
    margin-bottom: 1rem;
}

.wc-section-subtitle {
    font-size: var(--text-body);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin-inline: auto;
    line-height: var(--leading-snug);
}

/* ── Buttons ─────────────────────────────────────────────── */
.wc-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 24px;
    border-radius: var(--radius-sm);
    font-size: var(--text-small);
    font-weight: 600;
    line-height: 1;
    transition: all var(--duration-base) var(--ease-out);
    white-space: nowrap;
}

.wc-btn--primary {
    background: var(--color-accent);
    color: #000;
}
.wc-btn--primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--glow-accent);
}

.wc-btn--ghost {
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
}
.wc-btn--ghost:hover {
    border-color: var(--color-border-accent);
    background: var(--color-accent-subtle);
    transform: translateY(-1px);
}

.wc-btn--wa {
    background: #25d366;
    color: #fff;
}
.wc-btn--wa:hover {
    background: #1ebe5d;
    transform: translateY(-1px);
    box-shadow: 0 0 24px rgba(37, 211, 102, 0.3);
}

/* ── Keyframe Animations ─────────────────────────────────── */
@keyframes wc-fade-up {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes wc-fade-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes wc-slide-up {
    from { opacity: 0; transform: translateY(60px) scale(0.98); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes wc-shimmer {
    0%   { background-position: -200% center; }
    100% { background-position:  200% center; }
}

@keyframes wc-pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.5; transform: scale(0.85); }
}

@keyframes wc-float {
    0%, 100% { transform: translateY(0px); }
    50%       { transform: translateY(-6px); }
}

@keyframes wc-rotate-slow {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

@keyframes wc-counter-up {
    from { transform: translateY(20px); opacity: 0; }
    to   { transform: translateY(0); opacity: 1; }
}

/* ── Intersection Observer Reveals ──────────────────────── */
.wc-reveal {
    opacity: 0;
    transform: translateY(28px);
    transition:
        opacity  var(--duration-slow) var(--ease-out),
        transform var(--duration-slow) var(--ease-out);
    transition-delay: var(--delay, 0ms);
}

.wc-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.wc-reveal-left {
    opacity: 0;
    transform: translateX(-28px);
    transition:
        opacity  var(--duration-slow) var(--ease-out),
        transform var(--duration-slow) var(--ease-out);
    transition-delay: var(--delay, 0ms);
}
.wc-reveal-left.is-visible {
    opacity: 1;
    transform: translateX(0);
}

/* ── Subtle grid line bg (used in Why section) ───────────── */
.wc-grid-bg {
    background-image:
        linear-gradient(var(--color-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
    background-size: 48px 48px;
}