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

:root {
    --primary-gold: #EDB900;
    --secondary-gold: #D2A122;
    --dark-gray: #282828;
    --black: #000000;
    --white: #FFFFFF;
    --light-beige: #FAF4E5;
    --success: #22c55e;
    --error: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    --light-gray: #f8fafc;
    --medium-gray: #64748b;
    --border-gray: #e2e8f0;
}

body {
    font-family: 'Noto Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, var(--light-beige) 0%, var(--white) 50%, #f0f9ff 100%);
    min-height: 100vh;
    color: var(--dark-gray);
    line-height: 1.6;
}

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

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: linear-gradient(135deg, var(--white), rgba(237, 185, 0, 0.05));
    border-radius: 20px;
    border: 1px solid rgba(237, 185, 0, 0.1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 25vw;
}

.header-text {
    display: flex;
    flex-direction: column;
    align-items: left;
    text-align: left;
    padding-right: 5vw;
}

.logo-svg {
    height: 240px;
    width: auto;
    filter: drop-shadow(0 4px 12px rgba(237, 185, 0, 0.3));
    transition: all 0.3s ease;
}

.logo-svg:hover {
    filter: drop-shadow(0 6px 20px rgba(237, 185, 0, 0.4));
    transform: translateY(-2px);
}

.logo-svg path,
.logo-svg polygon,
.logo-svg rect,
.logo-svg circle,
.logo-svg text {
    fill: var(--primary-gold);
}

.logo-svg .text-fill {
    fill: var(--dark-gray);
}

.logo-svg .accent-fill {
    fill: var(--secondary-gold);
}

.logo-svg .primary-fill {
    fill: var(--primary-gold);
}

.logo-svg [fill="#000000"],
.logo-svg [fill="black"],
.logo-svg [fill="#000"] {
    fill: var(--primary-gold) !important;
}

.logo-svg [stroke="#000000"],
.logo-svg [stroke="black"],
.logo-svg [stroke="#000"] {
    stroke: var(--primary-gold) !important;
}

.logo-svg * {
    fill: var(--primary-gold);
}

.logo-svg text,
.logo-svg tspan {
    fill: var(--dark-gray) !important;
}

.app-title {
    font-size: 2.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--dark-gray), var(--secondary-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.app-description {
    color: var(--medium-gray);
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
}

.card {
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.08);
    padding: 3rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-gray);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 16px 64px rgba(0, 0, 0, 0.12);
    transform: translateY(-2px);
}

.section-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.section-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary-gold), var(--secondary-gold));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 0.9rem;
}

.upload-area {
    border: 3px dashed var(--primary-gold);
    border-radius: 16px;
    padding: 4rem 3rem;
    text-align: center;
    background: linear-gradient(135deg, rgba(237, 185, 0, 0.02), rgba(237, 185, 0, 0.08));
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.upload-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.6s;
}

.upload-area:hover::before {
    left: 100%;
}

.upload-area:hover, .upload-area.dragover {
    border-color: var(--secondary-gold);
    background: linear-gradient(135deg, rgba(237, 185, 0, 0.08), rgba(237, 185, 0, 0.15));
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(237, 185, 0, 0.2);
}

.upload-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-gold), var(--secondary-gold));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--white);
    font-size: 2rem;
    box-shadow: 0 8px 32px rgba(237, 185, 0, 0.3);
}

.upload-text {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark-gray);
    margin-bottom: 0.75rem;
}

.upload-subtext {
    color: var(--secondary-gold);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.upload-requirements {
    background: rgba(237, 185, 0, 0.1);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    margin-top: 1.5rem;
    text-align: left;
}

.requirements-list {
    list-style: none;
    color: var(--medium-gray);
    font-size: 0.9rem;
}

.requirements-list li {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.requirements-list li::before {
    content: '✓';
    color: var(--success);
    font-weight: bold;
}

#fileInput {
    display: none;
}

.btn {
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Noto Sans', sans-serif;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.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: left 0.6s;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-gold), var(--secondary-gold));
    color: var(--white);
    box-shadow: 0 4px 16px rgba(237, 185, 0, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(237, 185, 0, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, var(--success), #16a34a);
    color: var(--white);
    box-shadow: 0 4px 16px rgba(34, 197, 94, 0.3);
}

.btn-success:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(34, 197, 94, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--medium-gray), var(--dark-gray));
    color: var(--white);
    box-shadow: 0 4px 16px rgba(100, 116, 139, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(100, 116, 139, 0.4);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat-card {
    background: linear-gradient(135deg, var(--white), rgba(237, 185, 0, 0.02));
    border: 2px solid var(--primary-gold);
    border-radius: 16px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-gold), var(--secondary-gold));
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(237, 185, 0, 0.2);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-gold), var(--secondary-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--medium-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.progress-container {
    margin: 2rem 0;
}

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

.progress-text {
    font-weight: 600;
    color: var(--dark-gray);
}

.progress-percentage {
    font-weight: 700;
    color: var(--primary-gold);
    font-size: 1.1rem;
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: var(--border-gray);
    border-radius: 6px;
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-gold), var(--secondary-gold));
    border-radius: 6px;
    width: 0%;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background-image: linear-gradient(
        -45deg,
        rgba(255, 255, 255, 0.2) 25%,
        transparent 25%,
        transparent 50%,
        rgba(255, 255, 255, 0.2) 50%,
        rgba(255, 255, 255, 0.2) 75%,
        transparent 75%,
        transparent
    );
    background-size: 20px 20px;
    animation: move-stripes 1s linear infinite;
}

@keyframes move-stripes {
    0% { background-position: 0 0; }
    100% { background-position: 20px 0; }
}

.log-container {
    background: var(--dark-gray);
    color: var(--white);
    border-radius: 12px;
    padding: 2rem;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    max-height: 400px;
    overflow-y: auto;
    line-height: 1.6;
    margin-top: 1.5rem;
    box-shadow: inset 0 4px 8px rgba(0, 0, 0, 0.3);
}

.log-entry {
    margin-bottom: 0.5rem;
    opacity: 0;
    animation: fadeInLog 0.5s ease forwards;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.log-timestamp {
    color: var(--medium-gray);
    font-size: 0.8rem;
    flex-shrink: 0;
}

.log-content {
    flex: 1;
}

@keyframes fadeInLog {
    to { opacity: 1; }
}

.log-success { color: var(--success); }
.log-warning { color: var(--warning); }
.log-error { color: var(--error); }
.log-info { color: var(--info); }

.file-info {
    background: linear-gradient(135deg, rgba(237, 185, 0, 0.05), rgba(237, 185, 0, 0.1));
    border: 2px solid var(--primary-gold);
    border-radius: 16px;
    padding: 2rem;
    margin-top: 2rem;
}

.file-info-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.file-info-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-gold), var(--secondary-gold));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
}

.file-info h4 {
    color: var(--dark-gray);
    font-size: 1.2rem;
    font-weight: 700;
}

.file-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    font-size: 0.95rem;
}

.file-detail {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 8px;
    border: 1px solid rgba(237, 185, 0, 0.2);
}

.file-detail-label {
    font-weight: 600;
    color: var(--dark-gray);
}

.file-detail-value {
    color: var(--secondary-gold);
    font-weight: 600;
}

.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

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

.loading-spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s linear infinite;
}

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

.button-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    margin-top: 2rem;
}

.validation-summary {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(59, 130, 246, 0.1));
    border: 2px solid var(--info);
    border-radius: 16px;
    padding: 2rem;
    margin: 2rem 0;
}

.validation-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(59, 130, 246, 0.1);
}

.validation-item:last-child {
    border-bottom: none;
}

.validation-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: bold;
    color: var(--white);
}

.validation-icon.success { background: var(--success); }
.validation-icon.warning { background: var(--warning); }
.validation-icon.error { background: var(--error); }

.tooltip {
    position: relative;
    cursor: help;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--dark-gray);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .card {
        padding: 2rem 1.5rem;
    }
    
    .logo-svg {
        height: 80px;
    }
    
    .app-title {
        font-size: 1.8rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .upload-area {
        padding: 3rem 2rem;
    }

    .button-group {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .file-details {
        grid-template-columns: 1fr;
    }
}

.log-container::-webkit-scrollbar {
    width: 8px;
}

.log-container::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.log-container::-webkit-scrollbar-thumb {
    background: var(--primary-gold);
    border-radius: 4px;
}

.log-container::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-gold);
}