/* ========================================
   NBS Event Solutions — Cinematic Editorial
   Refined dark theme with editorial typography
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Geist:wght@100;200;300;400;500;600;700;800;900&family=Geist+Mono:wght@300;400;500;600&display=swap');

/* CSS Custom Properties */
:root {
    /* Backgrounds — deeper, more atmospheric */
    --color-bg-primary: #07090f;
    --color-bg-secondary: #0c0f17;
    --color-bg-tertiary: #11151f;
    --color-bg-card: #161b27;
    --color-bg-elevated: #1c2230;

    /* Brand Accents */
    --color-accent-primary: #2379a6;
    --color-accent-secondary: #0aadbf;
    --color-accent-light: #8ed0df;
    --color-accent-blue: #0aadbf;
    --color-accent-cyan: #4dd9e8;
    --color-accent-warm: #e8d4a2;
    --color-accent-cream: #f4ead5;

    --color-accent-gradient: linear-gradient(120deg, #2379a6 0%, #0aadbf 45%, #8ed0df 100%);
    --color-accent-gradient-warm: linear-gradient(120deg, #0aadbf 0%, #8ed0df 45%, #e8d4a2 100%);
    --color-spotlight-gradient: radial-gradient(ellipse at top, rgba(10, 173, 191, 0.12) 0%, transparent 60%);

    /* Text */
    --color-text-primary: #f5f6f8;
    --color-text-secondary: #a1a7b4;
    --color-text-muted: #6b7280;
    --color-text-dim: #4b5160;

    /* Borders & Shadows */
    --color-border: rgba(255, 255, 255, 0.06);
    --color-border-hover: rgba(255, 255, 255, 0.14);
    --color-border-accent: rgba(10, 173, 191, 0.3);

    --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 12px 40px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 24px 80px rgba(0, 0, 0, 0.55);
    --shadow-glow: 0 0 60px rgba(10, 173, 191, 0.18);
    --shadow-glow-strong: 0 0 100px rgba(10, 173, 191, 0.35);

    /* Typography stack — single family discipline */
    --font-display: 'Geist', -apple-system, 'Segoe UI', sans-serif;
    --font-primary: 'Geist', -apple-system, 'Segoe UI', sans-serif;
    --font-mono: 'Geist Mono', 'JetBrains Mono', 'SF Mono', Menlo, monospace;

    /* Spacing */
    --section-padding: clamp(5rem, 10vw, 10rem);
    --container-max: 1400px;
    --container-narrow: 1100px;

    /* Transitions */
    --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --ease-out-quint: cubic-bezier(0.22, 1, 0.36, 1);
    --transition-fast: 0.25s var(--ease-out-quart);
    --transition-smooth: 0.5s var(--ease-out-quart);
    --transition-slow: 0.8s var(--ease-out-expo);
}

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

html {
    font-size: 16px;
    scroll-padding-top: 88px;
    background: var(--color-bg-primary);
}

/* Lenis smooth-scroll setup */
html.lenis,
html.lenis body {
    height: auto;
}

.lenis.lenis-smooth {
    scroll-behavior: auto !important;
}

.lenis.lenis-smooth [data-lenis-prevent] {
    overscroll-behavior: contain;
}

.lenis.lenis-stopped {
    overflow: hidden;
}

.lenis.lenis-scrolling iframe {
    pointer-events: none;
}

body {
    font-family: var(--font-primary);
    font-feature-settings: 'ss01', 'ss02', 'cv01', 'cv11';
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    position: relative;
}

/* Subtle film grain overlay across whole page */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 2000;
    opacity: 0.04;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.7'/%3E%3C/svg%3E");
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border-hover);
    border-radius: 0;
    border: 3px solid var(--color-bg-primary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-blue);
}

/* Typography — Geist, weight + tracking discipline */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.02;
    letter-spacing: -0.04em;
    color: var(--color-text-primary);
}

h1 {
    font-size: clamp(2.75rem, 7.5vw, 6.5rem);
    font-weight: 700;
    letter-spacing: -0.055em;
}

h2 {
    font-size: clamp(2.25rem, 5.5vw, 4.5rem);
    font-weight: 600;
    letter-spacing: -0.045em;
}

h3 {
    font-size: clamp(1.4rem, 2.6vw, 2rem);
    font-weight: 600;
    letter-spacing: -0.03em;
}

h4 {
    font-size: clamp(1.15rem, 1.8vw, 1.35rem);
    font-weight: 500;
    letter-spacing: -0.02em;
}

p {
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    line-height: 1.75;
    font-weight: 400;
}

a {
    color: var(--color-accent-cyan);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-light);
}

em, .italic {
    font-family: var(--font-display);
    font-style: normal;
    font-weight: 200;
    color: var(--color-accent-cyan);
    letter-spacing: -0.06em;
}

/* Section labels — editorial monospace */
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    color: var(--color-accent-cyan);
}

.eyebrow::before {
    content: '';
    display: inline-block;
    width: 28px;
    height: 1px;
    background: currentColor;
    opacity: 0.6;
}

.eyebrow--center::after {
    content: '';
    display: inline-block;
    width: 28px;
    height: 1px;
    background: currentColor;
    opacity: 0.6;
}

/* Section numbers — large editorial index */
.section-number {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 400;
    color: var(--color-text-muted);
    letter-spacing: 0.18em;
}

/* Utility Classes */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 4vw, 3rem);
}

.gradient-text {
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.warm-text {
    color: var(--color-accent-cream);
    font-family: var(--font-display);
    font-weight: 300;
}

/* Button Styles — refined */
.btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.625rem;
    padding: 0.95rem 1.85rem;
    font-family: var(--font-primary);
    font-size: 0.92rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 0%, rgba(255,255,255,0.15) 50%, transparent 100%);
    transform: translateX(-100%);
    transition: transform 0.6s var(--ease-out-quart);
}

.btn:hover::after {
    transform: translateX(100%);
}

.btn-primary {
    background: var(--color-text-primary);
    color: var(--color-bg-primary);
    box-shadow: 0 4px 24px rgba(245, 246, 248, 0.12);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(245, 246, 248, 0.2);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-hover);
    backdrop-filter: blur(8px);
}

.btn-outline:hover {
    border-color: var(--color-accent-cyan);
    color: var(--color-accent-cyan);
    transform: translateY(-2px);
}

.btn--ghost {
    background: transparent;
    color: var(--color-text-primary);
    padding: 0.5rem 0;
    border-radius: 0;
    border-bottom: 1px solid var(--color-text-primary);
}

.btn--ghost::after { display: none; }

.btn--ghost:hover {
    color: var(--color-accent-cyan);
    border-bottom-color: var(--color-accent-cyan);
}

/* Section Title */
.section-title {
    text-align: center;
    margin-bottom: clamp(3rem, 6vw, 5rem);
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 1.5rem;
}

.section-title .eyebrow {
    margin-bottom: 1.5rem;
    justify-content: center;
}

.section-title h2 {
    margin-bottom: 1.25rem;
}

.section-title p {
    max-width: 580px;
    margin: 0 auto;
    color: var(--color-text-secondary);
}

/* JS-driven reveal — never hide images, only soft fade */
.reveal {
    opacity: 0.001;
    transform: translateY(20px);
    transition: opacity 0.7s var(--ease-out-quart), transform 0.7s var(--ease-out-quart);
}

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

/* Scroll Animations */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-60px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(60px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Marquee — editorial scrolling tagline */
.marquee {
    width: 100%;
    overflow: hidden;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-primary);
    padding: 1.75rem 0;
}

.marquee__track {
    display: flex;
    width: max-content;
    animation: marquee 35s linear infinite;
    will-change: transform;
}

.marquee__item {
    display: inline-flex;
    align-items: center;
    gap: 2rem;
    padding: 0 2rem;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(1.5rem, 3.5vw, 2.5rem);
    color: var(--color-text-primary);
    white-space: nowrap;
    letter-spacing: -0.045em;
}

.marquee__item span {
    color: var(--color-accent-cyan);
    font-weight: 200;
    letter-spacing: -0.06em;
}

.marquee__item::after {
    content: '×';
    color: var(--color-accent-cyan);
    font-size: 0.7em;
    font-weight: 300;
    opacity: 0.6;
}

@keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

/* Image hover effects */
.img-hover-zoom {
    overflow: hidden;
    border-radius: 4px;
}

.img-hover-zoom img {
    transition: transform var(--transition-smooth);
}

.img-hover-zoom:hover img {
    transform: scale(1.05);
}

/* Card Base Style */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    transition: all var(--transition-smooth);
}

.card:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

/* Divider — refined hairline */
.divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border-hover) 50%, transparent);
    margin: var(--section-padding) 0;
}

/* Selection */
::selection {
    background: var(--color-accent-cyan);
    color: var(--color-bg-primary);
}

/* ========================================
   Performance
   ======================================== */
.tile,
.service-card,
.gallery-item,
.info-image img,
.navbar {
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .marquee__track {
        animation: none !important;
    }
}

/* ========================================
   Mobile & Touch
   ======================================== */
html, body {
    overflow-x: hidden;
    width: 100%;
}

@supports (padding: max(0px)) {
    body {
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }

    .site-footer {
        padding-bottom: max(1.5rem, env(safe-area-inset-bottom));
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
        scroll-padding-top: 70px;
    }

    p {
        font-size: 1rem;
        line-height: 1.7;
    }

    .section-title {
        margin-bottom: 2.5rem;
    }

    .btn {
        padding: 0.85rem 1.5rem;
        font-size: 0.9rem;
        min-height: 48px;
    }

    .container {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
        scroll-padding-top: 65px;
    }

    .btn {
        padding: 0.85rem 1.4rem;
        width: 100%;
        justify-content: center;
    }

    .btn-outline {
        padding: 0.75rem 1.25rem;
    }
}

@media (hover: none) and (pointer: coarse) {
    .btn-primary:hover {
        transform: none;
    }

    .btn-primary:active {
        transform: scale(0.97);
        transition: transform 0.1s ease;
    }

    .btn-outline:hover {
        background: transparent;
        border-color: var(--color-border-hover);
        color: var(--color-text-primary);
    }

    .btn-outline:active {
        background: var(--color-bg-card);
    }

    .card:hover {
        transform: none;
        box-shadow: var(--shadow-md);
    }

    .card:active {
        transform: scale(0.98);
    }

    a, button {
        -webkit-tap-highlight-color: rgba(10, 173, 191, 0.15);
    }

    .btn, .navbar-toggle, .tile, .service-card, .gallery-item {
        -webkit-user-select: none;
        user-select: none;
    }
}

@media (max-height: 500px) and (orientation: landscape) {
    .fullscreen-video {
        height: 100svh;
    }

    .page-header {
        min-height: 80vh;
        padding-top: calc(70px + 1rem);
    }
}

@media print {
    .navbar,
    .fullscreen-video,
    .btn,
    .footer-menu,
    .site-footer,
    .marquee {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }
}