@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Grotesk:wght@600;700&display=swap');

/* ========================================
   DARK THEME (default)
   ======================================== */
:root {
    --bg: oklch(15% .02 265);
    --bg-secondary: oklch(12% .015 265);
    --fg: oklch(98% 0 0);
    --card: oklch(18% .015 265);
    --card-transparent: oklch(18% .015 265 / 0.5);
    --primary: oklch(65% .25 265);
    --primary-hover: oklch(60% .25 265);
    --primary-glow: oklch(65% .25 265 / 0.25);
    --primary-btn-text: oklch(98% 0 0);
    --border: oklch(28% .02 265);
    --border-subtle: oklch(28% .02 265 / 0.5);
    --muted: oklch(22% .015 265);
    --muted-fg: oklch(68% .05 265);
    --secondary: oklch(25% .02 265);
    --accent-pink: #f32aa4;
    --accent-orange: #f57400;

    /* Section gradient stops */
    --gradient-a: #070b14;
    --gradient-b: #0e1218;

    /* Header glass */
    --header-bg: oklch(15% .02 265 / 0.85);

    /* Footer bg */
    --footer-bg: oklch(12% .015 265);

    /* Ambient radials */
    --ambient-1: oklch(65% .25 265 / 0.06);
    --ambient-2: oklch(65% .15 300 / 0.05);

    /* Grid pattern line color */
    --grid-line: oklch(25% .02 265 / 0.05);

    /* Step badge colors — blue */
    --step-blue-bg: oklch(65% .25 265 / 0.15);
    --step-blue-border: oklch(65% .25 265 / 0.3);
    --step-blue-text: oklch(75% .2 265);

    /* Step badge colors — pink */
    --step-pink-bg: oklch(65% .25 350 / 0.15);
    --step-pink-border: oklch(65% .25 350 / 0.3);
    --step-pink-text: oklch(75% .2 350);

    /* Step badge colors — orange */
    --step-orange-bg: oklch(70% .20 50 / 0.15);
    --step-orange-border: oklch(70% .20 50 / 0.3);
    --step-orange-text: oklch(80% .15 50);

    /* Card hover glow */
    --card-glow-blue: oklch(65% .25 265 / 0.15);
    --card-glow-pink: oklch(65% .25 350 / 0.15);
    --card-glow-orange: oklch(70% .20 50 / 0.15);

    /* Success message */
    --success-bg: oklch(30% .1 150 / 0.2);
    --success-border: oklch(60% .2 150 / 0.4);
    --success-text: oklch(80% .15 150);

    /* Theme transition duration */
    --theme-speed: 0.35s;
}

/* ========================================
   LIGHT THEME
   ======================================== */
[data-theme="light"] {
    --bg: oklch(98.5% .005 265);
    --bg-secondary: oklch(96% .008 265);
    --fg: oklch(18% .02 265);
    --card: oklch(100% 0 0);
    --card-transparent: oklch(100% 0 0 / 0.7);
    --primary: oklch(55% .28 265);
    --primary-hover: oklch(50% .28 265);
    --primary-glow: oklch(55% .28 265 / 0.18);
    --primary-btn-text: oklch(100% 0 0);
    --border: oklch(88% .01 265);
    --border-subtle: oklch(90% .008 265);
    --muted: oklch(95% .005 265);
    --muted-fg: oklch(45% .03 265);
    --secondary: oklch(94% .008 265);
    --accent-pink: #d9238f;
    --accent-orange: #d06400;

    --gradient-a: oklch(96% .01 265);
    --gradient-b: oklch(98% .005 265);

    --header-bg: oklch(98.5% .005 265 / 0.88);

    --footer-bg: oklch(96% .008 265);

    --ambient-1: oklch(55% .28 265 / 0.04);
    --ambient-2: oklch(55% .15 300 / 0.03);

    --grid-line: oklch(75% .02 265 / 0.08);

    --step-blue-bg: oklch(55% .28 265 / 0.08);
    --step-blue-border: oklch(55% .28 265 / 0.2);
    --step-blue-text: oklch(45% .22 265);

    --step-pink-bg: oklch(65% .25 350 / 0.08);
    --step-pink-border: oklch(65% .25 350 / 0.2);
    --step-pink-text: oklch(45% .2 350);

    --step-orange-bg: oklch(70% .20 50 / 0.08);
    --step-orange-border: oklch(70% .20 50 / 0.2);
    --step-orange-text: oklch(45% .18 50);

    --card-glow-blue: oklch(55% .28 265 / 0.08);
    --card-glow-pink: oklch(65% .25 350 / 0.08);
    --card-glow-orange: oklch(70% .20 50 / 0.08);

    --success-bg: oklch(95% .05 150);
    --success-border: oklch(75% .15 150);
    --success-text: oklch(35% .12 150);
}

/* ========================================
   BASE
   ======================================== */
* {
    scroll-behavior: smooth;
    box-sizing: border-box;
}

body {
    overflow-x: hidden;
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg);
    color: var(--fg);
    transition: background var(--theme-speed) ease, color var(--theme-speed) ease;
}

.font-display {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
}

/* ========================================
   AMBIENT BACKGROUND EFFECTS
   ======================================== */
.ambient-bg {
    position: relative;
}
.ambient-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 600px 400px at 20% 20%, var(--ambient-1), transparent),
        radial-gradient(ellipse 500px 350px at 80% 70%, var(--ambient-2), transparent);
    pointer-events: none;
    z-index: 0;
    transition: background var(--theme-speed) ease;
}

/* ========================================
   GRID PATTERN OVERLAY
   ======================================== */
.grid-pattern {
    position: relative;
}
.grid-pattern::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
        linear-gradient(var(--grid-line) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
    border-radius: inherit;
}

/* ========================================
   SECTION GRADIENT (hero, contact, coming-soon hero)
   ======================================== */
.section-hero {
    background: linear-gradient(135deg, var(--gradient-a), var(--gradient-b), var(--gradient-a));
    border: 2px solid var(--border-subtle);
    transition: background var(--theme-speed) ease, border-color var(--theme-speed) ease;
}

[data-theme="light"] .section-hero {
    box-shadow: 0 1px 3px oklch(55% .28 265 / 0.06), 0 8px 24px oklch(55% .28 265 / 0.04);
}

/* ========================================
   CARDS — GLASSMORPHISM / LIGHT SHADOW
   ======================================== */
.glass-card {
    background: var(--card-transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 2px solid var(--border-subtle);
    transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.2s ease, background var(--theme-speed) ease;
}
.glass-card:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 32px var(--card-glow-blue);
    transform: translateY(-2px);
}

[data-theme="light"] .glass-card {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: 0 1px 3px oklch(0% 0 0 / 0.04), 0 4px 12px oklch(0% 0 0 / 0.03);
}
[data-theme="light"] .glass-card:hover {
    box-shadow: 0 4px 20px var(--card-glow-blue);
}

/* Wrapper card (Trust, Company) */
.card-wrapper {
    background: var(--card-transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 2px solid var(--border-subtle);
    transition: background var(--theme-speed) ease, border-color var(--theme-speed) ease, box-shadow var(--theme-speed) ease;
}
[data-theme="light"] .card-wrapper {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: var(--card);
    box-shadow: 0 1px 3px oklch(0% 0 0 / 0.04), 0 4px 12px oklch(0% 0 0 / 0.03);
}

/* ========================================
   ACCENT CARD BORDERS
   ======================================== */
.accent-blue {
    border-color: oklch(65% .25 265 / 0.3);
}
.accent-blue:hover {
    border-color: oklch(65% .25 265);
    box-shadow: 0 8px 32px var(--card-glow-blue);
}

.accent-pink {
    border-color: oklch(65% .25 350 / 0.3);
}
.accent-pink:hover {
    border-color: oklch(65% .25 350);
    box-shadow: 0 8px 32px var(--card-glow-pink);
}

.accent-orange {
    border-color: oklch(70% .20 50 / 0.3);
}
.accent-orange:hover {
    border-color: oklch(70% .20 50);
    box-shadow: 0 8px 32px var(--card-glow-orange);
}

[data-theme="light"] .accent-blue { border-color: oklch(55% .28 265 / 0.2); }
[data-theme="light"] .accent-blue:hover { border-color: oklch(55% .28 265 / 0.5); }
[data-theme="light"] .accent-pink { border-color: oklch(65% .25 350 / 0.2); }
[data-theme="light"] .accent-pink:hover { border-color: oklch(65% .25 350 / 0.5); }
[data-theme="light"] .accent-orange { border-color: oklch(70% .20 50 / 0.2); }
[data-theme="light"] .accent-orange:hover { border-color: oklch(70% .20 50 / 0.5); }

/* ========================================
   BUTTONS
   ======================================== */
.btn-primary {
    background: var(--primary);
    color: var(--primary-btn-text);
    box-shadow: 0 4px 20px var(--primary-glow);
    transition: all 0.25s ease;
}
.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 6px 28px oklch(65% .25 265 / 0.4);
    transform: translateY(-1px);
}

[data-theme="light"] .btn-primary:hover {
    box-shadow: 0 6px 28px oklch(55% .28 265 / 0.3);
}

.btn-secondary {
    background: var(--card);
    color: var(--fg);
    border: 2px solid var(--border);
    transition: all 0.25s ease;
}
.btn-secondary:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 16px oklch(65% .25 265 / 0.1);
    transform: translateY(-1px);
}

/* ========================================
   BADGE / PILL
   ======================================== */
.badge {
    background: var(--muted);
    border: 1px solid var(--border-subtle);
    color: var(--muted-fg);
    transition: background var(--theme-speed) ease, border-color var(--theme-speed) ease, color var(--theme-speed) ease;
}

/* ========================================
   STEP BADGES (colored)
   ======================================== */
.step-badge-blue {
    background: var(--step-blue-bg);
    border: 1px solid var(--step-blue-border);
    color: var(--step-blue-text);
}
.step-badge-pink {
    background: var(--step-pink-bg);
    border: 1px solid var(--step-pink-border);
    color: var(--step-pink-text);
}
.step-badge-orange {
    background: var(--step-orange-bg);
    border: 1px solid var(--step-orange-border);
    color: var(--step-orange-text);
}

/* ========================================
   HEADER
   ======================================== */
.header-glass {
    background: var(--header-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle);
    transition: background var(--theme-speed) ease, border-color var(--theme-speed) ease;
}

/* ========================================
   NAV LINKS
   ======================================== */
.nav-link {
    color: var(--muted-fg);
    transition: color 0.2s ease;
}
.nav-link:hover {
    color: var(--fg);
}

/* ========================================
   FOOTER
   ======================================== */
.footer-border {
    border-top: 1px solid var(--border-subtle);
    background: var(--footer-bg);
    transition: background var(--theme-speed) ease, border-color var(--theme-speed) ease;
}

/* ========================================
   SUCCESS MESSAGE
   ======================================== */
.success-msg {
    background: var(--success-bg);
    border: 1px solid var(--success-border);
    color: var(--success-text);
}

/* ========================================
   THEME TOGGLE
   ======================================== */
.theme-toggle {
    position: relative;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1.5px solid var(--border-subtle);
    background: var(--muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.25s ease, border-color 0.25s ease, transform 0.15s ease;
    flex-shrink: 0;
}
.theme-toggle:hover {
    border-color: var(--primary);
    background: var(--secondary);
    transform: scale(1.08);
}
.theme-toggle:active {
    transform: scale(0.95);
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
    position: absolute;
    transition: opacity 0.3s ease, transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.theme-toggle .icon-sun {
    color: var(--muted-fg);
    opacity: 0;
    transform: rotate(-90deg) scale(0.5);
}
.theme-toggle .icon-moon {
    color: var(--muted-fg);
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

[data-theme="light"] .theme-toggle .icon-sun {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}
[data-theme="light"] .theme-toggle .icon-moon {
    opacity: 0;
    transform: rotate(90deg) scale(0.5);
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-up {
    animation: fadeUp 0.6s ease-out forwards;
    opacity: 0;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

@keyframes glowPulse {
    0%, 100% { box-shadow: 0 0 8px var(--primary-glow); }
    50% { box-shadow: 0 0 20px oklch(65% .25 265 / 0.3); }
}

.glow-pulse {
    animation: glowPulse 3s ease-in-out infinite;
}

[data-theme="light"] .glow-pulse {
    animation: none;
    box-shadow: 0 1px 4px oklch(55% .28 265 / 0.1);
}