/* ==========================================================================
   CSS Reset & Variables
   ========================================================================== */


:root {
    --bg-color: #050508;
    --text-primary: #FFFFFF;
    --text-secondary: #9FA1B0;
    --accent-cyan: #00E5FF;
    --accent-purple: #B388FF;
    --glass-bg: rgba(15, 15, 20, 0.7);
    --glass-border: rgba(255, 255, 255, 0.06);
    --glass-hover-bg: rgba(255, 255, 255, 0.06);
    --glass-hover-border: rgba(255, 255, 255, 0.15);
    
    --font-main: Arial, "Helvetica Neue", Helvetica, sans-serif;
    --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-smooth: 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

body.light-theme {
    --bg-color: #F8F9FA;
    --text-primary: #1A1A1E;
    --text-secondary: #5E616C;
    --accent-cyan: #00BCD4;
    --accent-purple: #9C27B0;
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(0, 0, 0, 0.08);
    --glass-hover-bg: rgba(255, 255, 255, 0.9);
    --glass-hover-border: rgba(0, 0, 0, 0.15);
}

body.light-theme .navbar {
    background: rgba(255, 255, 255, 0.7);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}



body.light-theme .btn-primary {
    color: #FFF;
}

body.light-theme .footer {
    background: rgba(0, 0, 0, 0.05);
}

body.light-theme .item-c::after {
    background: linear-gradient(to top, rgba(248, 249, 250, 0.95) 0%, rgba(248, 249, 250, 0) 60%);
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent !important;
}

/* Remove tap highlight & click focus rings site-wide */
a, button, input, select, textarea, [role="button"], [tabindex], .btn, [class*="btn"] {
    -webkit-tap-highlight-color: transparent !important;
    outline: none !important;
}

*:focus {
    outline: none !important;
}

*:focus:not(:focus-visible) {
    outline: none !important;
    box-shadow: none !important;
}

button:focus, a:focus, input:focus, select:focus, textarea:focus {
    outline: none !important;
}

button, input, select, textarea, .btn, .btn-primary, .btn-secondary, .btn-glow, .btn-outline, [class*="btn"], .nav-links a {
    font-family: var(--font-main);
    text-transform: none;
}

body, .glass-panel, h1, h2, h3, h4, p, span, a, button, .navbar, .price-card, .viewer-controls, div {
    transition: border-color 0.4s ease, box-shadow 0.4s ease;
}

html {
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.25) transparent;
}

body {
    width: 100%;
    min-height: 100vh;
    overflow-x: clip;
    position: relative;
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Language Switch Animation */
#lang-toggle {
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), color 0.3s ease !important;
}

#lang-toggle:hover {
    transform: scale(1.15) !important;
    color: var(--accent-cyan) !important;
}

#lang-toggle:hover .lang-text {
    text-shadow: 0 0 12px rgba(0, 229, 255, 0.8);
}

.lang-text {
    display: inline-block;
    transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55), opacity 0.25s ease, filter 0.25s ease;
    backface-visibility: hidden;
}

#lang-toggle.btn-spin .lang-text {
    transform: rotateY(180deg) scale(0.5);
    opacity: 0;
    filter: blur(2px);
}

[data-i18n], [data-placeholder] {
    transition: opacity 0.25s ease, transform 0.25s ease, filter 0.25s ease;
    will-change: opacity, transform, filter;
}

body.lang-changing [data-i18n], 
body.lang-changing [data-placeholder] {
    opacity: 0;
    filter: blur(4px);
    transform: translateY(-4px);
}

a {
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-fast);
}

h1, h2, h3, h4 {
    line-height: 1.1;
    font-weight: 800;
}

/* ==========================================================================
   Typography Utilities
   ========================================================================== */
.gradient-text-cyan {
    background: linear-gradient(90deg, var(--accent-cyan) 0%, var(--accent-purple) 40%, var(--text-primary) 70%, var(--accent-cyan) 100%);
    background-size: 300% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    /* animation: textShimmer 2.5s linear infinite; */
}

.gradient-text-purple {
    background: linear-gradient(90deg, var(--accent-purple) 0%, var(--accent-cyan) 40%, var(--text-primary) 70%, var(--accent-purple) 100%);
    background-size: 300% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    /* animation: textShimmer 2.5s linear infinite; */
}

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

/* ==========================================================================
   Custom Scrollbar
   ========================================================================== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.25);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan);