/* ============================================================
   NAMBA DIGITAL — IMMERSIVE PREMIUM EXPERIENCE
   CSS Variables, Glass, Loader, Cursor, Transitions, Theme
   ============================================================ */

/* ── CSS Custom Properties (Light Mode Default) ── */
:root {
    --namba-bg: #f3f5f9;
    --namba-bg-rgb: 243, 245, 249;
    --namba-text: #0f172a;
    --namba-text-secondary: #475569;
    --namba-surface: #ffffff;
    --namba-surface-rgb: 255, 255, 255;
    --namba-glass-bg: rgba(255, 255, 255, 0.88);
    --namba-glass-border: rgba(255, 255, 255, 0.6);
    --namba-glass-shadow: rgba(15, 23, 42, 0.06);
    --namba-primary: var(--aurora-color, #ff5722);
    --namba-primary-rgb: var(--aurora-color-rgb, 255, 87, 34);
    --namba-glow: rgba(var(--namba-primary-rgb), 0.15);
    --namba-glow-strong: rgba(var(--namba-primary-rgb), 0.35);
    --namba-earth-ambient: #ffeedd;
    --namba-earth-directional: #fff8f0;
    --namba-fog: #f3f5f9;
    --namba-star-opacity: 0;
    --namba-card-bg: rgba(255, 255, 255, 0.45);
    --namba-card-hover-shadow: 0 25px 60px -12px rgba(15, 23, 42, 0.12);
    --namba-scrollbar-track: #f3f5f9;
    --namba-scrollbar-thumb: #cbd5e1;
    --namba-overlay-gradient: radial-gradient(125% 125% at 50% 0%, rgba(243, 245, 249, 0.95) 50%, color-mix(in srgb, var(--aurora-color, #13FFAA) 8%, transparent));
    --glass-reflex-light: 1;
    --glass-reflex-dark: 0.8;
    --namba-surface-container: #f8fafc;
    --namba-surface-container-high: #f1f5f9;
}

/* ── Dark Mode Properties ── */
html.dark {
    --namba-bg: #070b14;
    --namba-bg-rgb: 7, 11, 20;
    --namba-text: #f1f5f9;
    --namba-text-secondary: #94a3b8;
    --namba-surface: #0f172a;
    --namba-surface-rgb: 15, 23, 42;
    --namba-glass-bg: rgba(15, 23, 42, 0.82);
    --namba-glass-border: rgba(255, 255, 255, 0.08);
    --namba-glass-shadow: rgba(0, 0, 0, 0.3);
    --namba-glow: rgba(var(--namba-primary-rgb), 0.2);
    --namba-glow-strong: rgba(var(--namba-primary-rgb), 0.5);
    --namba-earth-ambient: #1a1a3e;
    --namba-earth-directional: #334488;
    --namba-fog: #070b14;
    --namba-star-opacity: 1;
    --namba-card-bg: rgba(15, 23, 42, 0.6);
    --namba-card-hover-shadow: 0 25px 60px -12px rgba(255, 87, 34, 0.15);
    --namba-scrollbar-track: #0f172a;
    --namba-scrollbar-thumb: #1e293b;
    --namba-overlay-gradient: radial-gradient(125% 125% at 50% 0%, rgba(7, 11, 20, 0.92) 50%, color-mix(in srgb, var(--aurora-color, #13FFAA) 18%, transparent));
    --glass-reflex-light: 0.4;
    --glass-reflex-dark: 1.8;
    --namba-surface-container: #0b1120;
    --namba-surface-container-high: #151f38;
}

/* ── Page Loader ── */
#namba-loader {
    position: fixed;
    inset: 0;
    z-index: 99999;
    background: var(--namba-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

#namba-loader.loaded {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-earth {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: url('../../Namba Digital.png') no-repeat center/cover;
    position: relative;
    box-shadow: 0 0 60px rgba(var(--namba-primary-rgb), 0.3);
}

.loader-earth::after {
    display: none;
}

.loader-earth::before {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    border: 2px solid transparent;
    border-top-color: var(--namba-primary);
    border-right-color: rgba(var(--namba-primary-rgb), 0.3);
    animation: loaderSpin 1.5s linear infinite;
    z-index: 1;
}

@keyframes loaderSpin {
    to { transform: rotate(360deg); }
}

.loader-logo {
    font-family: 'Outfit', sans-serif;
    font-weight: 900;
    font-size: 1.25rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    background: linear-gradient(135deg, var(--namba-primary), #ffa726);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.loader-progress {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--namba-text-secondary);
    letter-spacing: 0.15em;
}

.loader-bar {
    width: 200px;
    height: 2px;
    background: rgba(var(--namba-primary-rgb), 0.1);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.loader-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--namba-primary), #ffa726);
    border-radius: 2px;
    width: 0%;
    transition: width 0.1s linear;
    box-shadow: 0 0 10px rgba(var(--namba-primary-rgb), 0.5);
}

/* ── Three.js Canvas Container ── */
#namba-canvas-container {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}

#namba-canvas-container canvas {
    width: 100% !important;
    height: 100% !important;
    display: block;
}

/* ── Background Overlay (sits on top of canvas, behind content) ── */
.namba-bg-overlay {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background: var(--namba-overlay-gradient);
    transition: background 1.5s ease;
}

/* ── Custom Cursor ── */
.namba-cursor-dot {
    position: fixed;
    top: 0;
    left: 0;
    width: 8px;
    height: 8px;
    background: var(--namba-primary);
    border-radius: 50%;
    pointer-events: none;
    z-index: 100000;
    mix-blend-mode: difference;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.2s ease, width 0.2s ease, height 0.2s ease, background 0.2s ease;
    will-change: transform;
}

.namba-cursor-ring {
    position: fixed;
    top: 0;
    left: 0;
    width: 40px;
    height: 40px;
    border: 1.5px solid rgba(var(--namba-primary-rgb), 0.5);
    border-radius: 50%;
    pointer-events: none;
    z-index: 99999;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.3s ease, width 0.3s ease, height 0.3s ease, border-color 0.3s ease, background 0.3s ease;
    will-change: transform;
}

/* Cursor states */
.namba-cursor-dot.cursor-hover {
    width: 12px;
    height: 12px;
    background: #fff;
}

.namba-cursor-ring.cursor-hover {
    width: 56px;
    height: 56px;
    border-color: rgba(var(--namba-primary-rgb), 0.8);
    background: rgba(var(--namba-primary-rgb), 0.06);
}

.namba-cursor-dot.cursor-click {
    width: 5px;
    height: 5px;
}

.namba-cursor-ring.cursor-click {
    width: 30px;
    height: 30px;
    border-color: var(--namba-primary);
}

/* Hide custom cursor on touch / small screens */
@media (pointer: coarse), (max-width: 768px) {
    .namba-cursor-dot,
    .namba-cursor-ring {
        display: none !important;
    }
}

/* When cursor is active, hide default cursor on the body */
body.namba-cursor-active {
    cursor: none !important;
}

body.namba-cursor-active a,
body.namba-cursor-active button,
body.namba-cursor-active input,
body.namba-cursor-active select,
body.namba-cursor-active textarea,
body.namba-cursor-active [role="button"],
body.namba-cursor-active .cursor-pointer {
    cursor: none !important;
}

/* ── Enhanced Glass Effects (Liquid Glass Theme) ── */
.glass {
    position: relative;
    isolate: isolate;
    transition: transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),
                box-shadow 400ms cubic-bezier(0.25, 0.8, 0.25, 1) !important;
}

/* Light Mode Defaults for Glass Text (overrides Tailwind light defaults) */
.glass h1, .glass h2, .glass h3,
.glass h4, .glass h5, .glass h6,
.card-3d h1, .card-3d h2, .card-3d h3,
.card-3d h4, .card-3d h5, .card-3d h6 {
    color: #0f172a !important;
}

.glass p, .glass span:not(.material-symbols-outlined),
.glass li,
.card-3d p, .card-3d span:not(.material-symbols-outlined),
.card-3d li {
    color: #334155 !important;
}

/* Fallback: when JS has not loaded or has not appended the lens, style the glass container itself */
.glass:not(.glass-liquidated) {
    background: var(--namba-glass-bg);
    border: 1px solid var(--namba-glass-border);
    box-shadow: 0 10px 30px var(--namba-glass-shadow);
}

.glass.glass-liquidated {
    background: transparent !important;
    border: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: none !important;
}

/* Liquid Glass Lens Layer — performance-safe frosted glass */
.glass-lens {
    position: absolute;
    inset: 0;
    z-index: -10;
    border-radius: inherit;
    pointer-events: none;
    background-color: var(--glass-color, var(--namba-glass-bg));
    
    /* Lightweight frosted glass — no SVG displacement */
    backdrop-filter: blur(4px) saturate(120%);
    -webkit-backdrop-filter: blur(4px) saturate(120%);
    
    /* Specular glass highlights */
    box-shadow: 
      inset 0 0 0 1px rgba(255,255,255,0.1),
      inset 0 1px 0 0 rgba(255,255,255,0.2),
      inset 0 -1px 0 0 rgba(0,0,0,0.05),
      0 1px 3px 0 rgba(0,0,0,0.04),
      0 8px 20px 0 rgba(0,0,0,0.06);
      
    transition: background-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 400ms cubic-bezier(0.25, 0.8, 0.25, 1);
}


/* ── Enhanced Buttons ── */
.namba-btn-3d {
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    box-shadow: 0 4px 15px rgba(var(--namba-primary-rgb), 0.2),
                inset 0 1px 0 rgba(255, 255, 255, 0.2),
                inset 0 -2px 0 rgba(0, 0, 0, 0.1);
}

.namba-btn-3d:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(var(--namba-primary-rgb), 0.35),
                0 0 20px rgba(var(--namba-primary-rgb), 0.15),
                inset 0 1px 0 rgba(255, 255, 255, 0.3),
                inset 0 -2px 0 rgba(0, 0, 0, 0.1);
}

.namba-btn-3d:active {
    transform: translateY(1px);
    box-shadow: 0 2px 8px rgba(var(--namba-primary-rgb), 0.2),
                inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Button ripple */
.namba-ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transform: scale(0);
    animation: namba-ripple-anim 0.6s ease-out forwards;
    pointer-events: none;
}

@keyframes namba-ripple-anim {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Button glow ring — box-shadow based (no filter:blur) */
.namba-btn-glow {
    transition: box-shadow 0.3s ease;
}

.namba-btn-glow:hover {
    box-shadow: 0 0 20px rgba(var(--namba-primary-rgb), 0.4),
                0 0 40px rgba(var(--namba-primary-rgb), 0.15);
}

/* ── Icon Emboss ── */
.glass:hover .material-symbols-outlined,
.card-3d:hover .material-symbols-outlined {
    transform: translateY(-1px) scale(1.05);
}

/* ── Section Reveal Animations ── */
[data-scroll-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.23, 1, 0.32, 1),
                transform 0.7s cubic-bezier(0.23, 1, 0.32, 1);
}

[data-scroll-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ── Demo Card Layout Containment ── */
.demo-card {
    contain: layout style paint;
    will-change: transform;
}

/* ── Animated Gradient Heading ── */
.namba-gradient-text {
    background: linear-gradient(135deg, var(--namba-primary), #ffa726, var(--namba-primary));
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: namba-gradient-shift 4s ease infinite;
}

@keyframes namba-gradient-shift {
    0%, 100% { background-position: 0% center; }
    50% { background-position: 200% center; }
}

/* ── Animated Underline ── */
.namba-underline {
    position: relative;
    display: inline-block;
}

.namba-underline::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--namba-primary), #ffa726);
    transition: width 0.5s cubic-bezier(0.23, 1, 0.32, 1);
    border-radius: 2px;
}

.namba-underline:hover::after {
    width: 100%;
}

/* ── Floating Navbar Enhancement ── */
header {
    transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1),
                background-color 0.5s ease,
                box-shadow 0.5s ease !important;
}

header.nav-hidden {
    transform: translateY(-100%);
}

header.nav-scrolled {
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

/* ── Theme Toggle Button ── */
#namba-theme-toggle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(var(--namba-primary-rgb), 0.2);
    background: rgba(var(--namba-primary-rgb), 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

#namba-theme-toggle:hover {
    border-color: rgba(var(--namba-primary-rgb), 0.5);
    background: rgba(var(--namba-primary-rgb), 0.12);
    transform: rotate(15deg);
}

#namba-theme-toggle .material-symbols-outlined {
    font-size: 18px;
    color: var(--namba-primary) !important;
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

@media (min-width: 768px) {
    #namba-theme-toggle {
        width: 44px;
        height: 44px;
    }
    #namba-theme-toggle .material-symbols-outlined {
        font-size: 20px;
    }
}

/* ── Theme Transition Overlay ── */
#namba-theme-overlay {
    position: fixed;
    inset: 0;
    z-index: 99998;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* ── Scrollbar Enhancements ── */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--namba-scrollbar-track);
}

::-webkit-scrollbar-thumb {
    background: var(--namba-scrollbar-thumb);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--namba-primary);
}

/* ── Smooth Transitions for Theme Changes ── */
html {
    scroll-behavior: smooth;
}

body {
    transition: background-color 0.6s ease;
}

/* ── Offscreen Content Optimization ── */
[data-scroll-reveal] {
    content-visibility: auto;
    contain-intrinsic-size: auto 400px;
}

/* ── Dark Mode — Override Tailwind's light-assumed text overrides ── */
html.dark .text-white { color: #f1f5f9 !important; }
html.dark .text-white\/95,
html.dark .text-white\/90,
html.dark .text-white\/85,
html.dark .text-white\/80 { color: rgba(241, 245, 249, 0.85) !important; }
html.dark .text-white\/75,
html.dark .text-white\/70,
html.dark .text-white\/65,
html.dark .text-white\/60 { color: rgba(241, 245, 249, 0.7) !important; }
html.dark .text-white\/55,
html.dark .text-white\/50,
html.dark .text-white\/45,
html.dark .text-white\/40 { color: rgba(241, 245, 249, 0.55) !important; }
html.dark .text-white\/35,
html.dark .text-white\/30,
html.dark .text-white\/25,
html.dark .text-white\/20 { color: rgba(241, 245, 249, 0.4) !important; }

html.dark .glass h1, html.dark .glass h2, html.dark .glass h3,
html.dark .glass h4, html.dark .glass h5, html.dark .glass h6,
html.dark .card-3d h1, html.dark .card-3d h2, html.dark .card-3d h3,
html.dark .card-3d h4, html.dark .card-3d h5, html.dark .card-3d h6 {
    color: #f1f5f9 !important;
}

html.dark .glass p, html.dark .glass span:not(.material-symbols-outlined),
html.dark .glass li,
html.dark .card-3d p, html.dark .card-3d span:not(.material-symbols-outlined),
html.dark .card-3d li {
    color: #94a3b8 !important;
}

html.dark body {
    background-color: #070b14;
    color: #f1f5f9;
}

html.dark html {
    background-color: #070b14;
}

html.dark header {
    background-color: rgba(7, 11, 20, 0.6) !important;
    border-bottom-color: rgba(255, 255, 255, 0.05) !important;
}

html.dark .glass {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.55) 0%, rgba(15, 23, 42, 0.3) 100%) !important;
    border-top-color: rgba(255, 255, 255, 0.08) !important;
    border-left-color: rgba(255, 255, 255, 0.06) !important;
    border-right-color: rgba(255, 255, 255, 0.02) !important;
    border-bottom-color: rgba(255, 255, 255, 0.02) !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3) !important;
}

html.dark .bg-background\/60 {
    background-color: rgba(7, 11, 20, 0.6) !important;
}

html.dark input,
html.dark .bg-black\/40 {
    background-color: rgba(15, 23, 42, 0.6) !important;
}

html.dark footer {
    background-color: rgba(7, 11, 20, 0.5) !important;
    border-top-color: rgba(255, 255, 255, 0.05) !important;
}

html.dark .text-on-surface-variant {
    color: #94a3b8 !important;
}

html.dark .text-slate-400,
html.dark .text-slate-300,
html.dark .text-slate-200 {
    color: #94a3b8 !important;
}

/* Keep CTA button text white in dark mode too */
html.dark a.bg-gradient-to-r.text-white,
html.dark a.bg-primary.text-white,
html.dark a.bg-primary.text-black,
html.dark button.bg-primary.text-white,
html.dark .btn-primary-gradient,
html.dark button[type="submit"],
html.dark button.bg-gradient-to-r,
html.dark a.bg-gradient-to-r[href*="pricing.html"],
html.dark #modal-action-btn {
    color: #ffffff !important;
}

/* Dark footer text */
html.dark footer .text-on-surface-variant,
html.dark footer .text-white {
    color: #94a3b8 !important;
}

html.dark footer a {
    color: #94a3b8 !important;
}

html.dark footer a:hover {
    color: var(--namba-primary) !important;
}

/* Dark mode card glow */
html.dark .card-glow:hover {
    box-shadow: 0 15px 45px -10px rgba(255, 87, 34, 0.2) !important;
    border-color: rgba(255, 87, 34, 0.3) !important;
}

/* Dark mode scrollbar */
html.dark ::-webkit-scrollbar-track {
    background: #070b14;
}

html.dark ::-webkit-scrollbar-thumb {
    background: #1e293b;
}

/* ── Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    [data-scroll-reveal] {
        opacity: 1 !important;
        transform: none !important;
        filter: none !important;
    }

    [data-scroll-reveal] > * {
        opacity: 1 !important;
        transform: none !important;
    }

    .loader-earth {
        animation: none !important;
    }

    #namba-loader {
        display: none !important;
    }
}

/* ── Mobile Performance ── */
@media (max-width: 768px) {
    [data-scroll-reveal] {
        filter: none;
        transform: translateY(20px);
    }

    .glass::before {
        display: none;
    }

    /* Reduce glass-lens blur cost on mobile */
    .glass-lens {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
        background-color: var(--namba-glass-bg) !important;
    }

    /* Disable will-change on mobile to reduce memory */
    .demo-card {
        will-change: auto !important;
        contain: layout style;
    }

    /* Simplify namba-bg-overlay on mobile */
    .namba-bg-overlay {
        background: var(--namba-bg) !important;
    }
}