/**
 * chouhantaha.co.in — Frost Glass futuristic UI layer
 * Mobile-first · glassmorphism · frosty depth · widget chrome
 */

:root {
    --frost-bg: #040810;
    --frost-bg-2: #0a1220;
    --frost-surface: rgba(255, 255, 255, 0.04);
    --frost-surface-strong: rgba(255, 255, 255, 0.07);
    --frost-border: rgba(255, 255, 255, 0.12);
    --frost-border-gold: rgba(201, 169, 98, 0.35);
    --frost-glow: rgba(120, 180, 255, 0.15);
    --frost-glow-gold: rgba(201, 169, 98, 0.22);
    --frost-blur: 18px;
    --frost-blur-heavy: 28px;
    --frost-radius: 20px;
    --frost-radius-sm: 14px;
    --frost-shadow: 0 8px 32px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.08);
    --frost-shadow-hover: 0 20px 50px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(201, 169, 98, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

/* Ambient frost field */
.frost-field {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.frost-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.45;
    animation: frostDrift 18s ease-in-out infinite alternate;
}

.frost-orb--1 {
    width: min(420px, 70vw);
    height: min(420px, 70vw);
    top: -8%;
    right: -10%;
    background: radial-gradient(circle, rgba(56, 120, 220, 0.35) 0%, transparent 70%);
}

.frost-orb--2 {
    width: min(360px, 60vw);
    height: min(360px, 60vw);
    bottom: 10%;
    left: -12%;
    background: radial-gradient(circle, rgba(201, 169, 98, 0.2) 0%, transparent 70%);
    animation-delay: -6s;
}

.frost-orb--3 {
    width: min(280px, 50vw);
    height: min(280px, 50vw);
    top: 45%;
    left: 50%;
    transform: translateX(-50%);
    background: radial-gradient(circle, rgba(140, 200, 255, 0.12) 0%, transparent 70%);
    animation-delay: -12s;
}

@keyframes frostDrift {
    from { transform: translate(0, 0) scale(1); }
    to { transform: translate(24px, -18px) scale(1.06); }
}

/* Scroll frost progress */
.frost-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0;
    z-index: 1100;
    background: linear-gradient(90deg, rgba(120, 180, 255, 0.8), var(--exec-gold, #c9a962), rgba(255, 255, 255, 0.9));
    box-shadow: 0 0 16px rgba(201, 169, 98, 0.6);
    transition: width 0.08s linear;
}

/* Core glass panel */
.frost-glass,
.executive-card.frost-glass,
.executive-card-glass.frost-glass {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.09) 0%, rgba(255, 255, 255, 0.03) 100%);
    backdrop-filter: blur(var(--frost-blur)) saturate(160%);
    -webkit-backdrop-filter: blur(var(--frost-blur)) saturate(160%);
    border: 1px solid var(--frost-border) !important;
    border-radius: var(--frost-radius);
    box-shadow: var(--frost-shadow);
    position: relative;
    overflow: hidden;
}

.frost-glass::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.14) 0%, transparent 42%, transparent 58%, rgba(255, 255, 255, 0.04) 100%);
    pointer-events: none;
    border-radius: inherit;
}

.frost-glass::after {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
    pointer-events: none;
}

.frost-glass > * {
    position: relative;
    z-index: 1;
}

.frost-glass:hover {
    border-color: var(--frost-border-gold) !important;
    box-shadow: var(--frost-shadow-hover);
    transform: translateY(-4px);
}

/* Frost chip / badge */
.frost-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem 0.85rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.88);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.14);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.frost-chip--live {
    border-color: rgba(72, 220, 140, 0.45);
    box-shadow: 0 0 20px rgba(72, 220, 140, 0.15);
}

.frost-chip--live::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #48dc8c;
    box-shadow: 0 0 8px #48dc8c;
    animation: frostPulse 2s ease-in-out infinite;
}

@keyframes frostPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.55; transform: scale(0.85); }
}

/* Metric frost tiles */
.metric-tile.frost-metric {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--frost-radius-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.metric-tile.frost-metric:hover {
    transform: translateY(-2px) scale(1.02);
    border-color: var(--frost-border-gold);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3), 0 0 24px var(--frost-glow-gold);
}

.metric-tile.frost-metric .metric-value {
    background: linear-gradient(135deg, #fff 0%, var(--exec-gold, #c9a962) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Frost widget grid */
.frost-widget-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

@media (min-width: 768px) {
    .frost-widget-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 1rem;
    }
}

.frost-widget {
    padding: 1rem 1.1rem;
    border-radius: var(--frost-radius-sm);
    background: linear-gradient(160deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(var(--frost-blur));
    -webkit-backdrop-filter: blur(var(--frost-blur));
    text-align: center;
    transition: transform 0.25s ease, border-color 0.25s ease;
}

.frost-widget:hover {
    transform: translateY(-3px);
    border-color: var(--frost-border-gold);
}

.frost-widget__key {
    display: block;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--exec-gold, #c9a962);
    margin-bottom: 0.35rem;
}

.frost-widget__val {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.92);
    line-height: 1.35;
}

/* Availability frost cards */
.frost-avail-grid {
    display: grid;
    gap: 0.85rem;
}

@media (min-width: 768px) {
    .frost-avail-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.frost-avail-card {
    padding: 1.15rem 1.25rem;
    border-radius: var(--frost-radius-sm);
    background: linear-gradient(135deg, rgba(15, 39, 68, 0.75) 0%, rgba(255, 255, 255, 0.04) 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-left: 3px solid var(--exec-gold, #c9a962);
    backdrop-filter: blur(var(--frost-blur));
    -webkit-backdrop-filter: blur(var(--frost-blur));
}

.frost-avail-card__title {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--exec-gold-light, #e8d5a3);
    margin-bottom: 0.4rem;
}

.frost-avail-card__body {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.78);
    line-height: 1.55;
    margin: 0;
}

/* Frost nav upgrade */
.executive-nav.frost-nav {
    background: rgba(4, 8, 16, 0.55);
    backdrop-filter: blur(var(--frost-blur-heavy)) saturate(180%);
    -webkit-backdrop-filter: blur(var(--frost-blur-heavy)) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.executive-nav.frost-nav.is-scrolled {
    background: rgba(4, 8, 16, 0.82);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

/* Mobile frost dock */
.frost-dock {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1050;
    padding: 0.5rem 0.75rem calc(0.65rem + env(safe-area-inset-bottom, 0px));
    background: rgba(4, 8, 16, 0.72);
    backdrop-filter: blur(22px) saturate(180%);
    -webkit-backdrop-filter: blur(22px) saturate(180%);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.45);
}

.frost-dock__inner {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.25rem;
    max-width: 520px;
    margin: 0 auto;
}

.frost-dock__link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
    padding: 0.45rem 0.25rem;
    border-radius: 12px;
    color: rgba(255, 255, 255, 0.55);
    text-decoration: none;
    font-size: 0.58rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    transition: color 0.2s, background 0.2s;
}

.frost-dock__icon {
    display: grid;
    place-items: center;
    width: 1.35rem;
    height: 1.35rem;
}

.frost-dock__link:hover,
.frost-dock__link.is-active {
    color: var(--exec-gold, #c9a962);
    background: rgba(255, 255, 255, 0.06);
}

/* Hero frost panel */
.executive-hero.frost-hero {
    background:
        radial-gradient(ellipse 90% 70% at 50% -20%, rgba(56, 120, 220, 0.18) 0%, transparent 55%),
        radial-gradient(ellipse 60% 50% at 100% 50%, rgba(201, 169, 98, 0.08) 0%, transparent 50%),
        linear-gradient(180deg, #060b14 0%, var(--frost-bg) 100%);
}

.hero-bg-pattern.frost-mesh {
    opacity: 0.55;
    mix-blend-mode: screen;
}

/* Frost CTA */
.executive-cta-card.frost-cta {
    background: linear-gradient(135deg, rgba(15, 39, 68, 0.85) 0%, rgba(255, 255, 255, 0.06) 100%);
    backdrop-filter: blur(var(--frost-blur-heavy));
    -webkit-backdrop-filter: blur(var(--frost-blur-heavy));
    border: 1px solid rgba(255, 255, 255, 0.12) !important;
    border-radius: calc(var(--frost-radius) + 4px);
}

/* Frost table scroll (portfolio projects) */
.frost-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--frost-radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Body padding for mobile dock */
@media (max-width: 991.98px) {
    body.executive-body.has-frost-dock {
        padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px));
    }
}

/* Classic pages — frost overlay */
body.frost-theme {
    background: var(--frost-bg);
    color: #e8ecf2;
}

body.frost-theme nav {
    background: rgba(4, 8, 16, 0.72);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

body.frost-theme .contact-form-wrap,
body.frost-theme .contact-page__info,
body.frost-theme section .container > div {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--frost-radius);
    padding: 1.5rem;
}

.frost-dock__link i.fas,
.frost-dock__link i.fab {
    font-size: 1.05rem;
}

@media (prefers-reduced-motion: reduce) {
    .frost-orb,
    .frost-chip--live::before {
        animation: none;
    }

    .frost-glass:hover,
    .frost-widget:hover,
    .metric-tile.frost-metric:hover {
        transform: none;
    }
}