/* Modern UI Styles for Palmonas Image Tool - Elegant Black, White & Gold Theme */

:root {
    /* Palmonas Brand Colors - Sophisticated Palette */
    --primary-color: #000000;
    --primary-dark: #000000;
    --primary-light: #1a1a1a;
    --primary-gradient: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    
    --secondary-color: #ffffff;
    --secondary-dark: #cffbf8;
    --secondary-light: #cffbf8;
    --secondary-gradient: linear-gradient(135deg, #cffbf8; 0%, #cffbf8; 100%);
    
    --accent-color: #ffffff;
    --accent-dark: #bbbbbb;
    --accent-light: #f2efeb;
    --accent-gradient: linear-gradient(135deg, #c9a96e 0%, #e6c896 100%);
    
    /* Status Colors */
    --success-color: #10b981;
    --success-light: #34d399;
    --warning-color: #f59e0b;
    --warning-light: #fbbf24;
    --danger-color: #ef4444;
    --danger-light: #f87171;
    --info-color: #3b82f6;
    --info-light: #60a5fa;
    
    /* Neutral Colors - Palmonas Style */
    --background-color: #ffffff;
    --background-secondary: #fafafa;
    --background-tertiary: #f5f5f5;
    --surface-color: #ffffff;
    --surface-elevated: #ffffff;
    --card-bg: #ffffff;
    
    /* Text Colors */
    --text-primary: #000000;
    --text-secondary: #666666;
    --text-tertiary: #999999;
    --text-inverse: #ffffff;
    --text-gold: #d4af37;
    
    /* Border & Shadow */
    --border-color: #e5e5e5;
    --border-light: #f0f0f0;
    --border-dark: #cccccc;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Layout */
    --border-radius: 8px;
    --border-radius-sm: 6px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: #ffffff;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(212, 175, 55, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 0, 0, 0.02) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(201, 169, 110, 0.02) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
}

.header:hover {
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
    letter-spacing: -0.02em;
}

.logo:hover {
    transform: translateY(-1px);
    color: var(--text-gold);
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--secondary-gradient);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 2px solid var(--secondary-color);
    padding: 0.5rem;
}

.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: var(--border-radius-sm);
}

.logo-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: var(--transition-slow);
}

.logo:hover .logo-icon::before {
    left: 100%;
}

.logo:hover .logo-icon {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
    background: var(--primary-gradient);
    color: var(--text-inverse);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--primary-color);
}

.btn {
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    justify-content: center;
    position: relative;
    overflow: hidden;
    min-height: 48px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--text-inverse);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--primary-color);
    font-weight: 600;
    letter-spacing: 0.01em;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    border-color: var(--text-gold);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--surface-color);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--text-inverse);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-success {
    background: var(--secondary-gradient);
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--secondary-color);
    font-weight: 600;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--secondary-dark), var(--secondary-light));
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), var(--danger-light));
    color: var(--text-inverse);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--danger-color);
    font-weight: 600;
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #dc2626, var(--danger-color));
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: var(--shadow-sm) !important;
}

.btn:disabled::before {
    display: none;
}

/* Main Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Auth Screen */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 80px);
    padding: 2rem;
}

.auth-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    max-width: 450px;
    width: 100%;
    text-align: center;
    border: 1px solid var(--border-color);
}

.auth-card h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.auth-card p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.auth-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--secondary-gradient);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    padding: 1rem;
    box-shadow: var(--shadow-md);
}

.auth-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: var(--border-radius);
}

/* Main Content */
.main-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--secondary-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.card:hover::before {
    transform: scaleX(1);
}

.card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    border-color: var(--secondary-color);
    transform: translateY(-2px);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Upload Area */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--surface-color);
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--primary-color);
    background: rgba(59, 130, 246, 0.05);
}

.upload-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.upload-text {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.upload-hint {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Processing Options */
.processing-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.option-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.option-group label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.option-group input,
.option-group select {
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.option-group input:focus,
.option-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.slider {
    flex: 1;
    height: 8px;
    border-radius: 4px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    box-shadow: var(--shadow-md);
}

.slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-color);
    cursor: pointer;
    box-shadow: var(--shadow-md);
}

.slider-value {
    font-weight: 700;
    color: var(--primary-color);
    min-width: 50px;
    text-align: center;
}

/* File List */
.file-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.5rem;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--surface-color);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.file-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-sm);
    background: white;
}

.file-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.file-info {
    flex: 1;
}

.file-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.file-size {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.file-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Progress Bar */
.progress-container {
    margin-top: 1.5rem;
}

.progress-bar {
    width: 100%;
    height: 24px;
    background: var(--surface-color);
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    border: 1px solid var(--border-color);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 12px;
    transition: width 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
}

/* Results */
.results-container {
    margin-top: 2rem;
}

.result-card {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(6, 182, 212, 0.05));
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.result-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.stat-item {
    background: white;
    padding: 1rem;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid var(--border-color);
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Alerts & Toast Notifications */
.alert {
    padding: 1.25rem 1.5rem;
    border-radius: var(--border-radius-lg);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
    box-shadow: var(--shadow-md);
    border-left: 4px solid;
    animation: slideInRight 0.3s ease-out;
    backdrop-filter: blur(10px);
}

.alert-close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: inherit;
    opacity: 0.7;
    transition: var(--transition-fast);
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.alert-close:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.1);
    transform: scale(1.1);
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border-left-color: var(--success-color);
    color: var(--success-color);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border-left-color: var(--danger-color);
    color: var(--danger-color);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-left-color: var(--warning-color);
    color: var(--warning-color);
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border-left-color: var(--info-color);
    color: var(--info-color);
}

.alert-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.alert-content {
    flex: 1;
    font-weight: 500;
}

/* Toast Container */
#alert-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    max-width: 400px;
    width: 100%;
    pointer-events: none;
}

#alert-container .alert {
    pointer-events: auto;
    margin-bottom: 0.75rem;
    animation: slideInRight 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

.alert.removing {
    animation: slideOutRight 0.3s ease-in forwards;
}

/* Utilities */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* Responsive */
@media (max-width: 768px) {
    .nav {
        flex-direction: column;
        gap: 1rem;
    }

    .processing-options {
        grid-template-columns: 1fr;
    }

    .result-stats {
        grid-template-columns: 1fr;
    }

    .auth-card {
        padding: 2rem;
    }
}

/* Enhanced Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translate3d(0, 0, 0);
    }
    40%, 43% {
        transform: translate3d(0, -8px, 0);
    }
    70% {
        transform: translate3d(0, -4px, 0);
    }
    90% {
        transform: translate3d(0, -2px, 0);
    }
}

/* Animation Classes */
.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in-down {
    animation: fadeInDown 0.6s ease-out;
}

.fade-in-left {
    animation: fadeInLeft 0.6s ease-out;
}

.fade-in-right {
    animation: fadeInRight 0.6s ease-out;
}

.scale-in {
    animation: scaleIn 0.5s ease-out;
}

.pulse {
    animation: pulse 2s infinite;
}

.bounce {
    animation: bounce 1s;
}

/* Staggered animations for multiple elements */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: var(--transition);
    border-radius: 26px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: var(--transition);
    border-radius: 50%;
}

input:checked + .toggle-slider {
    background-color: var(--primary-color);
}

input:checked + .toggle-slider:before {
    transform: translateX(24px);
}


/* Modern Sign-in Design Overrides */
.auth-container {
    min-height: 100vh !important;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%) !important;
}

.auth-card {
    border-radius: var(--border-radius-xl) !important;
    padding: 3rem !important;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04) !important;
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--secondary-gradient);
    border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
}

/* Brand Section */
.brand-section {
    margin-bottom: 2.5rem;
}

.company-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--secondary-gradient);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    box-shadow: var(--shadow-md);
}

.logo-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: var(--border-radius);
}

.company-name {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.company-tagline {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    margin: 0;
}

/* Welcome Section */
.welcome-section {
    margin-bottom: 2rem;
    text-align: left;
}

.welcome-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    text-align: center;
}

.welcome-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    margin: 0;
    text-align: center;
}

/* Sign-in Section */
.signin-section {
    margin-bottom: 2rem;
}

.google-signin-btn {
    width: 100%;
    padding: 1rem 1.5rem;
    background: var(--surface-color);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    position: relative;
    overflow: hidden;
}

.google-signin-btn:hover {
    border-color: var(--primary-color);
    background: var(--background-secondary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.google-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.signin-text {
    font-weight: 600;
    color: var(--text-primary);
}

/* Footer */
.auth-footer {
    margin-top: 2rem;
}

.footer-text {
    color: var(--text-tertiary);
    font-size: 0.875rem;
    margin: 0;
    line-height: 1.5;
}

.footer-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}