@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Fira+Code:wght@400;500&display=swap');

:root {
    --font-sans: 'Outfit', sans-serif;
    --font-mono: 'Fira Code', monospace;
    
    /* Light Mode Variables */
    --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --bg-app: #f4f6f9;
    --card-bg: rgba(255, 255, 255, 0.7);
    --card-border: rgba(255, 255, 255, 0.5);
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --success-color: #10b981;
    
    --upload-bg: rgba(255, 255, 255, 0.6);
    --upload-border: #cbd5e1;
    --upload-border-hover: #6366f1;
    
    --log-bg: #0f172a;
    --log-text: #38bdf8;
    --log-border: #1e293b;
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.02);
    --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.08);
}

body.dark-theme {
    /* Dark Mode Variables */
    --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    --bg-app: #090d16;
    --card-bg: rgba(15, 23, 42, 0.6);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    
    --upload-bg: rgba(15, 23, 42, 0.4);
    --upload-border: #334155;
    --upload-border-hover: #818cf8;
    
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    padding-bottom: 3rem;
    transition: background 0.4s ease, color 0.4s ease;
}

/* Glassmorphism Card Style */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--card-border);
    border-radius: 1.25rem;
    box-shadow: var(--shadow-glass);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease, border 0.3s ease;
}

.glass-card:hover {
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.12);
}

/* Main Navbar */
.app-header {
    padding: 2rem 0;
}

.app-title {
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.05em;
}

/* Drag and Drop Zone */
.upload-zone {
    border: 2.5px dashed var(--upload-border);
    background: var(--upload-bg);
    border-radius: 1.25rem;
    padding: 3.5rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--upload-border-hover);
    background: rgba(99, 102, 241, 0.08);
    transform: translateY(-2px);
}

.upload-zone.dragover {
    transform: scale(1.02);
    box-shadow: 0 0 25px rgba(99, 102, 241, 0.2);
}

.upload-icon {
    font-size: 3.5rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.5rem;
    display: inline-block;
    transition: transform 0.3s ease;
}

.upload-zone:hover .upload-icon {
    transform: translateY(-5px) scale(1.05);
}

/* Interactive Slider */
.slider-container {
    padding: 0.5rem 0;
}

.custom-range::-webkit-slider-thumb {
    background: var(--primary-color);
}

.custom-range::-moz-range-thumb {
    background: var(--primary-color);
}

/* Custom Progress Bar */
.progress-container {
    margin-top: 1.5rem;
    display: none;
}

.progress {
    height: 1rem;
    border-radius: 50rem;
    background-color: var(--border-color);
    overflow: hidden;
}

.progress-bar {
    background: var(--accent-gradient);
    font-weight: 600;
    transition: width 0.4s ease;
}

/* Terminal Log Area */
.log-card {
    border-radius: 1rem;
    overflow: hidden;
}

.log-header {
    background: #1e293b;
    color: #cbd5e1;
    padding: 0.75rem 1.25rem;
    font-weight: 600;
    font-size: 0.9rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.log-area {
    background: var(--log-bg);
    color: var(--log-text);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 1.25rem;
    height: 200px;
    overflow-y: auto;
    border: 1px solid var(--log-border);
    border-top: none;
    border-bottom-left-radius: 1rem;
    border-bottom-right-radius: 1rem;
}

.log-line {
    margin-bottom: 0.4rem;
    line-height: 1.4;
    word-break: break-all;
}

.log-line.success {
    color: #34d399;
}

.log-line.warning {
    color: #fbbf24;
}

.log-line.error {
    color: #f87171;
}

.log-line.info {
    color: #a78bfa;
}

/* Results Grid Cards */
.result-card {
    border-radius: 1rem;
    overflow: hidden;
    height: 100%;
}

.avatar-wrapper {
    position: relative;
    padding-top: 100%; /* 1:1 Aspect Ratio */
    background: #f1f5f9;
    overflow: hidden;
}

body.dark-theme .avatar-wrapper {
    background: #1e293b;
}

.avatar-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.result-card:hover .avatar-img {
    transform: scale(1.08);
}

.card-title-custom {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

/* Floating Theme Toggle Button */
.theme-toggle-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1000;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    background: var(--accent-gradient);
    color: white;
    border: none;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-toggle-btn:hover {
    transform: scale(1.1) rotate(15deg);
}

.theme-toggle-btn:active {
    transform: scale(0.95);
}

/* Buttons Styling */
.btn-premium {
    background: var(--accent-gradient);
    border: none;
    color: white;
    font-weight: 600;
    padding: 0.6rem 1.25rem;
    border-radius: 0.75rem;
    transition: all 0.3s ease;
}

.btn-premium:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
    opacity: 0.95;
}

.btn-premium:active:not(:disabled) {
    transform: translateY(0);
}

#startBtn:not(:disabled) {
    opacity: 1;
    cursor: pointer;
}

.btn-premium:disabled {
    background: var(--border-color);
    color: var(--text-secondary);
    cursor: not-allowed;
}

/* Animations */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

.pulse-animation {
    animation: pulse 2s infinite ease-in-out;
}

/* Custom Scrollbar for Monospace Log Box */
.log-area::-webkit-scrollbar {
    width: 6px;
}
.log-area::-webkit-scrollbar-track {
    background: #0f172a;
}
.log-area::-webkit-scrollbar-thumb {
    background: #334155;
    border-radius: 3px;
}
.log-area::-webkit-scrollbar-thumb:hover {
    background: #475569;
}