/* ========================================
   SAMSUNG ONE UI 8.5 - ULTRA REFINED
   Premium Design Language
======================================== */

:root {
    /* One UI 8.5 Core Colors */
    --oneui-primary: #0A84FF;
    --oneui-primary-hover: #0066CC;
    --oneui-primary-soft: rgba(10, 132, 255, 0.08);
    --oneui-primary-lighter: rgba(10, 132, 255, 0.04);
    
    --oneui-secondary: #5856D6;
    --oneui-secondary-soft: rgba(88, 86, 214, 0.08);
    
    --oneui-success: #34C759;
    --oneui-success-soft: rgba(52, 199, 89, 0.08);
    
    --oneui-danger: #FF3B30;
    --oneui-danger-soft: rgba(255, 59, 48, 0.08);
    
    /* One UI 8.5 Backgrounds - Ultra Soft */
    --oneui-bg: #F2F2F7;
    --oneui-bg-secondary: #FFFFFF;
    --oneui-surface: rgba(255, 255, 255, 0.95);
    --oneui-surface-elevated: rgba(255, 255, 255, 0.98);
    --oneui-glass: rgba(255, 255, 255, 0.85);
    
    /* One UI 8.5 Text - Perfect Hierarchy */
    --oneui-text-primary: #000000;
    --oneui-text-secondary: #3C3C43;
    --oneui-text-tertiary: #8E8E93;
    --oneui-text-quaternary: #C7C7CC;
    --oneui-text-white: #FFFFFF;
    
    /* One UI 8.5 Borders - Ultra Subtle */
    --oneui-separator: rgba(60, 60, 67, 0.12);
    --oneui-separator-light: rgba(60, 60, 67, 0.06);
    --oneui-separator-opaque: #C6C6C8;
    
    /* One UI 8.5 Shadows - Layered & Soft */
    --oneui-shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
    --oneui-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06), 
                       0 1px 2px rgba(0, 0, 0, 0.04);
    --oneui-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 
                       0 2px 4px rgba(0, 0, 0, 0.06);
    --oneui-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.10), 
                       0 4px 8px rgba(0, 0, 0, 0.08);
    --oneui-shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12), 
                       0 8px 16px rgba(0, 0, 0, 0.10);
    --oneui-shadow-2xl: 0 24px 64px rgba(0, 0, 0, 0.14), 
                        0 12px 24px rgba(0, 0, 0, 0.12);
    
    /* One UI 8.5 Radius - Organic Curves */
    --oneui-radius-xs: 10px;
    --oneui-radius-sm: 14px;
    --oneui-radius-md: 18px;
    --oneui-radius-lg: 22px;
    --oneui-radius-xl: 28px;
    --oneui-radius-2xl: 36px;
    --oneui-radius-full: 9999px;
    
    /* One UI 8.5 Spacing System */
    --oneui-space-1: 4px;
    --oneui-space-2: 8px;
    --oneui-space-3: 12px;
    --oneui-space-4: 16px;
    --oneui-space-5: 20px;
    --oneui-space-6: 24px;
    --oneui-space-8: 32px;
    --oneui-space-10: 40px;
    --oneui-space-12: 48px;
    --oneui-space-16: 64px;
    
    /* One UI 8.5 Animation */
    --oneui-ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --oneui-ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --oneui-duration-instant: 150ms;
    --oneui-duration-fast: 250ms;
    --oneui-duration-base: 350ms;
    --oneui-duration-slow: 500ms;
}

/* ========================================
   BASE RESET
======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', system-ui, sans-serif;
    background: var(--oneui-bg);
    color: var(--oneui-text-primary);
    line-height: 1.47059;
    font-size: 17px;
    overflow-x: hidden;
}

/* ========================================
   ANIMATED BACKGROUND - SOFTER
======================================== */
.bg-shapes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
    opacity: 0.3;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    animation: float 25s ease-in-out infinite;
}

.shape-1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, rgba(10, 132, 255, 0.3) 0%, transparent 100%);
    top: -150px;
    left: -150px;
}

.shape-2 {
    width: 450px;
    height: 450px;
    background: linear-gradient(135deg, rgba(88, 86, 214, 0.25) 0%, transparent 100%);
    top: -100px;
    right: -100px;
    animation-delay: 8s;
}

.shape-3 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, rgba(52, 199, 89, 0.2) 0%, transparent 100%);
    bottom: -100px;
    left: 15%;
    animation-delay: 16s;
}

.shape-4 {
    width: 380px;
    height: 380px;
    background: linear-gradient(135deg, rgba(255, 149, 0, 0.2) 0%, transparent 100%);
    bottom: -120px;
    right: 10%;
    animation-delay: 12s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1) rotate(0deg);
    }
    33% {
        transform: translate(20px, -20px) scale(1.08) rotate(2deg);
    }
    66% {
        transform: translate(-15px, 15px) scale(0.95) rotate(-2deg);
    }
}

.container {
    max-width: 880px;
    margin: 0 auto;
    padding: 0 var(--oneui-space-6);
    position: relative;
    z-index: 1;
}

/* ========================================
   ONE UI 8.5 HEADER
======================================== */
.oneui-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--oneui-glass);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    border-bottom: 0.5px solid var(--oneui-separator-light);
    padding: var(--oneui-space-4) 0;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: var(--oneui-space-4);
}

.logo-gradient {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--oneui-primary) 0%, var(--oneui-secondary) 100%);
    border-radius: var(--oneui-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--oneui-shadow-md);
    transition: all var(--oneui-duration-base) var(--oneui-ease);
}

.logo-gradient:hover {
    transform: scale(1.05);
    box-shadow: var(--oneui-shadow-lg);
}

.logo-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.logo-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--oneui-text-primary);
    letter-spacing: -0.6px;
    line-height: 1.2;
}

.logo-subtitle {
    font-size: 14px;
    font-weight: 500;
    color: var(--oneui-text-tertiary);
    letter-spacing: -0.2px;
}

/* ========================================
   ONE UI 8.5 MAIN CONTENT
======================================== */
.oneui-main {
    padding: var(--oneui-space-12) 0 var(--oneui-space-16);
}

/* ========================================
   ONE UI 8.5 HERO
======================================== */
.oneui-hero {
    text-align: center;
    margin-bottom: var(--oneui-space-12);
    animation: fadeSlideUp 0.8s var(--oneui-ease-spring);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--oneui-space-2);
    padding: var(--oneui-space-2) var(--oneui-space-5);
    background: var(--oneui-surface-elevated);
    border: 0.5px solid var(--oneui-separator);
    border-radius: var(--oneui-radius-full);
    font-size: 14px;
    font-weight: 600;
    color: var(--oneui-text-secondary);
    margin-bottom: var(--oneui-space-8);
    box-shadow: var(--oneui-shadow-xs);
    letter-spacing: -0.2px;
}

.badge-dot {
    width: 7px;
    height: 7px;
    background: var(--oneui-success);
    border-radius: 50%;
    box-shadow: 0 0 0 2px var(--oneui-success-soft);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.15);
    }
}

.hero-heading {
    font-size: 54px;
    font-weight: 800;
    color: var(--oneui-text-primary);
    line-height: 1.07;
    letter-spacing: -2.5px;
    margin-bottom: var(--oneui-space-4);
}

.hero-subheading {
    font-size: 19px;
    font-weight: 500;
    color: var(--oneui-text-secondary);
    letter-spacing: -0.4px;
    line-height: 1.4;
}

/* ========================================
   GLASS CARD - ULTRA PREMIUM
======================================== */
.glass-card {
    background: var(--oneui-surface-elevated);
    backdrop-filter: blur(40px) saturate(180%);
    -webkit-backdrop-filter: blur(40px) saturate(180%);
    border: 0.5px solid var(--oneui-separator);
    border-radius: var(--oneui-radius-2xl);
    box-shadow: var(--oneui-shadow-2xl);
    overflow: hidden;
    animation: fadeSlideUp 0.8s var(--oneui-ease-spring) 0.2s both;
}

.main-glass-card {
    padding: var(--oneui-space-10);
    margin-bottom: var(--oneui-space-8);
}

/* ========================================
   CARD HEADER
======================================== */
.card-header-oneui {
    margin-bottom: var(--oneui-space-8);
}

.card-title-oneui {
    font-size: 32px;
    font-weight: 700;
    color: var(--oneui-text-primary);
    letter-spacing: -1.2px;
    margin-bottom: var(--oneui-space-2);
}

.card-subtitle-oneui {
    font-size: 16px;
    font-weight: 500;
    color: var(--oneui-text-tertiary);
    letter-spacing: -0.3px;
}

/* ========================================
   TOOLBAR - REFINED
======================================== */
.toolbar-oneui {
    margin-bottom: var(--oneui-space-6);
}

.toolbar-group {
    display: flex;
    align-items: center;
    gap: var(--oneui-space-2);
    padding: var(--oneui-space-2);
    background: var(--oneui-bg);
    border-radius: var(--oneui-radius-md);
    flex-wrap: wrap;
}

.toolbar-btn {
    width: 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--oneui-surface);
    border: 0.5px solid var(--oneui-separator-light);
    border-radius: var(--oneui-radius-sm);
    color: var(--oneui-text-secondary);
    cursor: pointer;
    transition: all var(--oneui-duration-fast) var(--oneui-ease);
    box-shadow: var(--oneui-shadow-xs);
}

.toolbar-btn:hover {
    background: var(--oneui-primary);
    color: var(--oneui-text-white);
    border-color: transparent;
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--oneui-shadow-md);
}

.toolbar-btn:active {
    transform: translateY(0) scale(1);
}

.toolbar-btn-danger:hover {
    background: var(--oneui-danger);
}

.toolbar-divider {
    width: 0.5px;
    height: 28px;
    background: var(--oneui-separator);
    margin: 0 var(--oneui-space-1);
}

/* ========================================
   EDITOR - ULTRA REFINED
======================================== */
.editor-oneui {
    display: flex;
    background: var(--oneui-bg);
    border: 1.5px solid var(--oneui-separator);
    border-radius: var(--oneui-radius-xl);
    overflow: hidden;
    height: 360px;
    transition: all var(--oneui-duration-base) var(--oneui-ease);
    margin-bottom: var(--oneui-space-6);
}

.editor-oneui:focus-within {
    border-color: var(--oneui-primary);
    box-shadow: 0 0 0 5px var(--oneui-primary-lighter);
    background: var(--oneui-surface);
}

.line-numbers-oneui {
    background: var(--oneui-surface);
    padding: var(--oneui-space-6) var(--oneui-space-3);
    min-width: 60px;
    font-family: 'SF Mono', 'Menlo', 'Consolas', monospace;
    font-size: 16px;
    font-weight: 600;
    color: var(--oneui-text-quaternary);
    text-align: right;
    overflow-y: hidden;
    user-select: none;
    border-right: 0.5px solid var(--oneui-separator-light);
}

.line-number {
    line-height: 1.76471;
    padding: 0 var(--oneui-space-2);
    border-radius: var(--oneui-radius-xs);
    transition: all var(--oneui-duration-instant) var(--oneui-ease);
}

.line-number:hover {
    background: var(--oneui-primary-soft);
    color: var(--oneui-primary);
    transform: translateX(-2px);
}

.textarea-oneui {
    flex: 1;
    padding: var(--oneui-space-6);
    background: transparent;
    border: none;
    outline: none;
    font-family: 'SF Mono', 'Menlo', 'Consolas', monospace;
    font-size: 16px;
    font-weight: 500;
    color: var(--oneui-text-primary);
    line-height: 1.76471;
    resize: none;
}

.textarea-oneui::placeholder {
    color: var(--oneui-text-quaternary);
}

/* ========================================
   STATS BAR
======================================== */
.stats-bar-oneui {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--oneui-space-4);
    padding: var(--oneui-space-5) 0;
    border-top: 0.5px solid var(--oneui-separator-light);
    margin-bottom: var(--oneui-space-8);
    flex-wrap: wrap;
}

.stat-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--oneui-space-2);
    padding: var(--oneui-space-3) var(--oneui-space-4);
    background: var(--oneui-bg);
    border: 0.5px solid var(--oneui-separator-light);
    border-radius: var(--oneui-radius-sm);
    font-size: 15px;
    font-weight: 600;
    color: var(--oneui-text-secondary);
    letter-spacing: -0.2px;
}

.stat-chip svg {
    color: var(--oneui-primary);
}

.quick-actions {
    display: flex;
    gap: var(--oneui-space-2);
}

.action-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--oneui-space-2);
    padding: var(--oneui-space-3) var(--oneui-space-4);
    background: var(--oneui-bg);
    border: 0.5px solid var(--oneui-separator-light);
    border-radius: var(--oneui-radius-sm);
    font-size: 15px;
    font-weight: 600;
    color: var(--oneui-text-secondary);
    cursor: pointer;
    transition: all var(--oneui-duration-fast) var(--oneui-ease);
    letter-spacing: -0.2px;
}

.action-chip:hover {
    background: var(--oneui-primary);
    color: var(--oneui-text-white);
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--oneui-shadow-sm);
}

/* ========================================
   PRIMARY BUTTON - HERO STYLE
======================================== */
.oneui-primary-btn {
    width: 100%;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--oneui-space-3);
    background: linear-gradient(135deg, var(--oneui-primary) 0%, var(--oneui-secondary) 100%);
    border: none;
    border-radius: var(--oneui-radius-lg);
    font-size: 18px;
    font-weight: 700;
    color: var(--oneui-text-white);
    cursor: pointer;
    box-shadow: var(--oneui-shadow-lg);
    transition: all var(--oneui-duration-base) var(--oneui-ease-spring);
    position: relative;
    overflow: hidden;
    letter-spacing: -0.4px;
}

.oneui-primary-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
    transition: left 0.6s ease;
}

.oneui-primary-btn:hover {
    transform: translateY(-4px) scale(1.01);
    box-shadow: 0 20px 60px rgba(10, 132, 255, 0.45);
}

.oneui-primary-btn:hover::before {
    left: 100%;
}

.oneui-primary-btn:active {
    transform: translateY(-2px) scale(1);
}

.btn-content {
    display: flex;
    align-items: center;
    gap: var(--oneui-space-3);
}

.spinner-oneui {
    width: 22px;
    height: 22px;
    border: 2.5px solid rgba(255, 255, 255, 0.25);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

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

/* ========================================
   DOWNLOAD SECTION
======================================== */
.download-section-oneui {
    animation: fadeSlideUp 0.8s var(--oneui-ease-spring) 0.4s both;
}

.section-header-oneui {
    text-align: center;
    margin-bottom: var(--oneui-space-10);
}

.success-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--oneui-space-6);
    background: linear-gradient(135deg, var(--oneui-success) 0%, #30D158 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--oneui-shadow-lg);
    animation: successPop 0.6s var(--oneui-ease-spring);
}

@keyframes successPop {
    0% { transform: scale(0); opacity: 0; }
    50% { transform: scale(1.15); }
    100% { transform: scale(1); opacity: 1; }
}

.section-title-oneui {
    font-size: 36px;
    font-weight: 800;
    color: var(--oneui-text-primary);
    letter-spacing: -1.8px;
    margin-bottom: var(--oneui-space-3);
}

.section-desc-oneui {
    font-size: 17px;
    font-weight: 500;
    color: var(--oneui-text-secondary);
    letter-spacing: -0.3px;
}

/* Progress Bar */
.progress-container-oneui {
    width: 100%;
    height: 7px;
    background: var(--oneui-bg);
    border-radius: var(--oneui-radius-full);
    overflow: hidden;
    margin-bottom: var(--oneui-space-6);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.06);
}

.progress-bar-oneui {
    height: 100%;
    background: linear-gradient(90deg, var(--oneui-primary) 0%, var(--oneui-secondary) 100%);
    width: 0%;
    transition: width var(--oneui-duration-base) var(--oneui-ease);
    border-radius: var(--oneui-radius-full);
    position: relative;
}

.progress-bar-oneui::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
    animation: shimmer 1.8s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Download All Button */
.download-all-oneui {
    width: 100%;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--oneui-space-3);
    background: linear-gradient(135deg, var(--oneui-success) 0%, #30D158 100%);
    border: none;
    border-radius: var(--oneui-radius-lg);
    font-size: 17px;
    font-weight: 700;
    color: white;
    cursor: pointer;
    box-shadow: var(--oneui-shadow-lg);
    transition: all var(--oneui-duration-base) var(--oneui-ease-spring);
    margin-bottom: var(--oneui-space-8);
    letter-spacing: -0.3px;
}

.download-all-oneui:hover {
    transform: translateY(-4px) scale(1.01);
    box-shadow: 0 20px 60px rgba(52, 199, 89, 0.45);
}

/* Files Grid */
.files-grid-oneui {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--oneui-space-4);
}

.file-card-oneui {
    background: var(--oneui-surface-elevated);
    border: 0.5px solid var(--oneui-separator);
    border-radius: var(--oneui-radius-lg);
    padding: var(--oneui-space-6);
    box-shadow: var(--oneui-shadow-sm);
    transition: all var(--oneui-duration-base) var(--oneui-ease-spring);
    animation: fadeScaleIn 0.5s var(--oneui-ease-spring) backwards;
}

.file-card-oneui:hover {
    transform: translateY(-6px);
    box-shadow: var(--oneui-shadow-xl);
    border-color: var(--oneui-primary);
}

.file-name-oneui {
    display: flex;
    align-items: center;
    gap: var(--oneui-space-3);
    font-size: 16px;
    font-weight: 600;
    color: var(--oneui-text-primary);
    margin-bottom: var(--oneui-space-5);
    letter-spacing: -0.3px;
}

.file-icon-oneui {
    color: var(--oneui-primary);
}

.download-file-btn {
    width: 100%;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--oneui-space-2);
    background: var(--oneui-primary);
    border: none;
    border-radius: var(--oneui-radius-sm);
    font-size: 15px;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: all var(--oneui-duration-fast) var(--oneui-ease);
    letter-spacing: -0.2px;
}

.download-file-btn:hover {
    background: var(--oneui-primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--oneui-shadow-md);
}

.download-file-btn:active {
    transform: translateY(0);
}

.download-all-oneui:active {
    transform: translateY(-2px) scale(1);
}

.download-all-oneui:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* No Files Message */
.no-files {
    text-align: center;
    padding: var(--oneui-space-10);
    color: var(--oneui-text-tertiary);
    font-size: 16px;
    font-weight: 500;
    letter-spacing: -0.3px;
}

/* Legacy class names support for JS compatibility */
.file-card {
    background: var(--oneui-surface-elevated);
    border: 0.5px solid var(--oneui-separator);
    border-radius: var(--oneui-radius-lg);
    padding: var(--oneui-space-6);
    box-shadow: var(--oneui-shadow-sm);
    transition: all var(--oneui-duration-base) var(--oneui-ease-spring);
    animation: fadeScaleIn 0.5s var(--oneui-ease-spring) backwards;
}

.file-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--oneui-shadow-xl);
    border-color: var(--oneui-primary);
}

.file-name {
    display: flex;
    align-items: center;
    gap: var(--oneui-space-3);
    font-size: 16px;
    font-weight: 600;
    color: var(--oneui-text-primary);
    margin-bottom: var(--oneui-space-5);
    letter-spacing: -0.3px;
    word-break: break-word;
}

.file-icon {
    color: var(--oneui-primary);
    flex-shrink: 0;
}

.download-btn {
    width: 100%;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--oneui-space-2);
    background: var(--oneui-primary);
    border: none;
    border-radius: var(--oneui-radius-sm);
    font-size: 15px;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: all var(--oneui-duration-fast) var(--oneui-ease);
    letter-spacing: -0.2px;
}

.download-btn:hover {
    background: var(--oneui-primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--oneui-shadow-md);
}

.download-btn:active {
    transform: translateY(0);
}

@keyframes fadeScaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ========================================
   FOOTER
======================================== */
.oneui-footer {
    background: var(--oneui-surface);
    backdrop-filter: blur(30px);
    border-top: 0.5px solid var(--oneui-separator-light);
    padding: var(--oneui-space-10) 0;
    margin-top: var(--oneui-space-16);
}

.footer-content-oneui {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--oneui-space-6);
}

.footer-brand-oneui {
    display: flex;
    align-items: center;
    gap: var(--oneui-space-4);
}

.footer-logo-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--oneui-primary) 0%, var(--oneui-secondary) 100%);
    border-radius: var(--oneui-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--oneui-shadow-sm);
}

.footer-text h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--oneui-text-primary);
    margin-bottom: 2px;
    letter-spacing: -0.4px;
}

.footer-text p {
    font-size: 14px;
    font-weight: 500;
    color: var(--oneui-text-tertiary);
    letter-spacing: -0.2px;
}

.footer-copyright p {
    font-size: 14px;
    font-weight: 500;
    color: var(--oneui-text-quaternary);
    letter-spacing: -0.2px;
}

/* ========================================
   NOTIFICATIONS
======================================== */
.notification {
    position: fixed;
    top: var(--oneui-space-6);
    right: var(--oneui-space-6);
    min-width: 340px;
    max-width: 420px;
    padding: var(--oneui-space-4) var(--oneui-space-5);
    background: var(--oneui-surface-elevated);
    backdrop-filter: blur(40px) saturate(180%);
    border: 0.5px solid var(--oneui-separator);
    border-radius: var(--oneui-radius-lg);
    box-shadow: var(--oneui-shadow-2xl);
    font-size: 16px;
    font-weight: 600;
    color: var(--oneui-text-primary);
    z-index: 10000;
    opacity: 0;
    transform: translateX(500px);
    transition: all var(--oneui-duration-base) var(--oneui-ease-spring);
    letter-spacing: -0.3px;
}

.notification.show {
    opacity: 1;
    transform: translateX(0);
}

.notification-success {
    border-left: 4px solid var(--oneui-success);
}

.notification-error {
    border-left: 4px solid var(--oneui-danger);
}

.notification-info {
    border-left: 4px solid var(--oneui-primary);
}

/* ========================================
   ANIMATIONS
======================================== */
@keyframes fadeSlideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--oneui-separator-opaque);
    border-radius: var(--oneui-radius-full);
    border: 2px solid var(--oneui-bg);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--oneui-text-tertiary);
}

/* ========================================
   RESPONSIVE DESIGN
======================================== */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--oneui-space-4);
    }
    
    .oneui-main {
        padding: var(--oneui-space-8) 0 var(--oneui-space-12);
    }
    
    .oneui-hero {
        margin-bottom: var(--oneui-space-10);
    }
    
    .hero-heading {
        font-size: 40px;
        letter-spacing: -1.8px;
    }
    
    .hero-subheading {
        font-size: 17px;
    }
    
    .main-glass-card {
        padding: var(--oneui-space-6);
    }
    
    .card-title-oneui {
        font-size: 28px;
    }
    
    .toolbar-btn {
        width: 44px;
        height: 44px;
    }
    
    .editor-oneui {
        height: 300px;
    }
    
    .stats-bar-oneui {
        flex-direction: column;
        align-items: stretch;
    }
    
    .quick-actions {
        width: 100%;
    }
    
    .action-chip {
        flex: 1;
        justify-content: center;
    }
    
    .oneui-primary-btn {
        height: 58px;
        font-size: 17px;
    }
    
    .files-grid-oneui {
        grid-template-columns: 1fr;
    }
    
    .section-title-oneui {
        font-size: 32px;
    }
    
    .notification {
        top: var(--oneui-space-4);
        right: var(--oneui-space-4);
        left: var(--oneui-space-4);
        min-width: auto;
    }
    
    .footer-content-oneui {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .logo-title {
        font-size: 20px;
    }
    
    .hero-heading {
        font-size: 32px;
    }
    
    .toolbar-btn {
        width: 42px;
        height: 42px;
    }
}