/* Zeus 3.0 - Dark Military Theme */

:root {
    --zeus-navy: #0f172a;
    --zeus-slate: #1e293b;
    --zeus-slate-light: #334155;
    --zeus-gold: #f0c050;
    --zeus-gold-dim: #d4a017;
    --zeus-blue: #1e3a5f;
    --zeus-blue-light: #93c5fd;
    --zeus-blue-mid: #3b82f6;
    --zeus-text: #f8fafc;
    --zeus-text-muted: #94a3b8;
    --zeus-text-dim: #64748b;
    --zeus-border: #334155;
    --zeus-border-light: #475569;
    --success-color: #10b981;
    --success-bg: #064e3b;
    --success-text: #6ee7b7;
    --warning-color: #f59e0b;
    --warning-bg: #78350f;
    --warning-text: #fde68a;
    --danger-color: #ef4444;
    --danger-bg: #7f1d1d;
    --danger-text: #fca5a5;
    --expert-color: #10b981;
    --competent-color: #3b82f6;
    --novice-color: #f59e0b;
    --trainee-color: #ef4444;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', sans-serif;
    background-color: var(--zeus-navy);
    color: var(--zeus-text);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background: var(--zeus-navy);
    color: var(--zeus-text);
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--zeus-border);
    position: relative;
}

.navbar::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--zeus-gold), var(--zeus-gold-dim), transparent);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.3rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    letter-spacing: 1px;
}

.nav-brand i {
    color: var(--zeus-gold);
}

.nav-menu {
    list-style: none;
    display: flex;
    gap: 0.5rem;
}

.nav-menu a {
    color: var(--zeus-text-muted);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    border: 1px solid transparent;
}

.nav-menu a:hover {
    color: var(--zeus-text);
    background: var(--zeus-slate);
    border-color: var(--zeus-border);
}

.nav-menu a.active {
    color: var(--zeus-blue-light);
    background: var(--zeus-blue);
    border-color: rgba(59, 130, 246, 0.3);
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--zeus-slate);
    border: 1px solid var(--zeus-border);
    border-radius: 12px;
    margin-bottom: 3rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--zeus-gold), var(--zeus-gold-dim), var(--zeus-gold));
}

.hero .org-label {
    font-size: 0.75rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--zeus-text-muted);
    margin-bottom: 0.75rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
    letter-spacing: 2px;
    color: var(--zeus-text);
}

.hero h1 .zeus-z {
    color: var(--zeus-gold);
}

.hero h1 .zeus-version {
    color: var(--zeus-text-dim);
    font-weight: 400;
}

.hero .subtitle {
    font-size: 1rem;
    margin-bottom: 2rem;
    color: var(--zeus-text-dim);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    border: 1px solid var(--zeus-border);
    border-radius: 6px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    font-weight: 500;
    background: transparent;
    color: var(--zeus-text-muted);
}

.btn-primary {
    background: var(--zeus-blue);
    color: var(--zeus-blue-light);
    border-color: rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    background: #1e40af;
    border-color: rgba(59, 130, 246, 0.5);
    color: #fff;
}

.btn-secondary {
    background: transparent;
    color: var(--zeus-text-muted);
    border-color: var(--zeus-border);
}

.btn-secondary:hover {
    background: var(--zeus-slate);
    color: var(--zeus-text);
}

.btn-lg {
    padding: 0.85rem 1.75rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.35rem 0.7rem;
    font-size: 0.8rem;
}

/* Features Grid */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.25rem;
    margin: 3rem 0;
}

.feature-card {
    background: var(--zeus-slate);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid var(--zeus-border);
    text-align: center;
    transition: border-color 0.2s;
}

.feature-card:hover {
    border-color: var(--zeus-border-light);
}

.feature-icon {
    font-size: 2rem;
    color: var(--zeus-gold);
    margin-bottom: 0.75rem;
}

.feature-card h3 {
    margin-bottom: 0.5rem;
    color: var(--zeus-text);
    font-weight: 500;
    font-size: 1rem;
}

.feature-card p {
    color: var(--zeus-text-muted);
    font-size: 0.9rem;
}

/* Info Section */
.info-section {
    margin: 3rem 0;
}

.info-section h2 {
    color: var(--zeus-text);
    font-weight: 500;
    margin-bottom: 1rem;
}

/* Upload Section */
.upload-section {
    background: var(--zeus-slate);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid var(--zeus-border);
    margin-bottom: 2rem;
}

.upload-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.upload-card {
    border: 2px dashed var(--zeus-border);
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    transition: all 0.2s;
    background: var(--zeus-navy);
}

.upload-card:hover {
    border-color: var(--zeus-blue-mid);
}

.upload-card.has-file {
    border-color: var(--success-color);
    border-style: solid;
    background: rgba(16, 185, 129, 0.05);
}

.upload-card h3 {
    color: var(--zeus-text);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.upload-icon {
    font-size: 2rem;
    color: var(--zeus-gold);
    margin-bottom: 0.75rem;
}

.upload-card input[type="file"] {
    display: none;
}

.file-label {
    display: inline-block;
    padding: 0.6rem 1.25rem;
    background: var(--zeus-blue);
    color: var(--zeus-blue-light);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 0.75rem;
    font-size: 0.85rem;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.file-label:hover {
    background: #1e40af;
    color: #fff;
}

.file-name {
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: var(--success-text);
    font-weight: 500;
}

/* Form Actions */
.form-actions {
    text-align: center;
    margin-top: 1rem;
}

/* Processing Animation */
.processing {
    text-align: center;
    padding: 3rem;
}

.processing h3 {
    color: var(--zeus-text);
    font-weight: 500;
}

.processing p {
    color: var(--zeus-text-muted);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--zeus-border);
    border-top-color: var(--zeus-gold);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

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

.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--zeus-border);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 1.5rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--zeus-gold), var(--zeus-blue-mid));
    animation: progress 2s ease-in-out infinite;
}

@keyframes progress {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 100%; }
}

/* Page Header */
.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    color: var(--zeus-text);
    font-weight: 500;
    font-size: 1.5rem;
}

.page-header p {
    color: var(--zeus-text-muted);
    font-size: 0.9rem;
}

/* Help Section */
.help-section {
    background: var(--zeus-slate);
    border: 1px solid var(--zeus-border);
    padding: 1.5rem 2rem;
    border-radius: 10px;
}

.help-section h3 {
    color: var(--zeus-text);
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.help-section ul {
    list-style: none;
    padding: 0;
}

.help-section li {
    color: var(--zeus-text-muted);
    padding: 0.25rem 0;
    font-size: 0.9rem;
}

.help-section li strong {
    color: var(--zeus-text);
}

/* Results Section */
.results-summary {
    margin-bottom: 3rem;
}

.summary-card {
    background: var(--zeus-slate);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid var(--zeus-border);
    margin-bottom: 1.25rem;
}

.summary-card.overall {
    text-align: center;
    background: var(--zeus-slate);
    position: relative;
    overflow: hidden;
    padding: 2rem;
}

.summary-card.overall::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--zeus-blue-mid);
}

.summary-card.overall h2 {
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--zeus-text-muted);
    font-weight: 400;
}

.performance-badge {
    font-size: 3rem;
    font-weight: 500;
    margin: 0.75rem 0 0.25rem;
    color: var(--zeus-text);
}

.performance-level {
    display: inline-block;
    font-size: 0.85rem;
    padding: 0.25rem 1rem;
    border-radius: 4px;
    margin-bottom: 0.75rem;
}

.performance-badge.expert { color: var(--expert-color); }
.performance-badge.competent { color: var(--competent-color); }
.performance-badge.novice { color: var(--novice-color); }
.performance-badge.trainee { color: var(--danger-color); }

.performance-level.expert-level {
    background: var(--success-bg);
    color: var(--success-text);
}

.confidence-indicator {
    font-size: 0.85rem;
    color: var(--zeus-text-muted);
}

.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.25rem;
}

.summary-card h3 {
    margin-bottom: 0.75rem;
    color: var(--zeus-text);
    font-weight: 500;
}

.summary-card .score {
    font-size: 2rem;
    font-weight: 500;
    color: var(--zeus-text);
}

.summary-card .status {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    margin: 0.5rem 0;
    font-weight: 500;
    font-size: 0.8rem;
}

.status.pass {
    background: var(--success-bg);
    color: var(--success-text);
}

.status.fail {
    background: var(--danger-bg);
    color: var(--danger-text);
}

.summary-card .points {
    color: var(--zeus-text-muted);
    font-size: 0.85rem;
}

/* Report Section */
.report-section {
    margin-bottom: 2rem;
}

.report-section h2 {
    color: var(--zeus-text);
    font-weight: 500;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--zeus-border);
}

/* Detailed Results */
.detailed-results {
    margin-bottom: 2rem;
}

/* Field Cards */
.fields-grid {
    display: grid;
    gap: 0.75rem;
    margin-top: 0.75rem;
}

.field-card {
    background: var(--zeus-slate);
    padding: 1rem 1.25rem;
    border-radius: 8px;
    border: 1px solid var(--zeus-border);
    border-left: 3px solid var(--zeus-border);
}

.field-card.yes {
    border-left-color: var(--success-color);
}

.field-card.no {
    border-left-color: var(--danger-color);
}

.field-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.4rem;
}

.field-name {
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--zeus-text);
    font-size: 0.9rem;
}

.field-name .fa-check-circle {
    color: var(--success-color);
}

.field-name .fa-times-circle {
    color: var(--danger-color);
}

.field-points {
    background: var(--zeus-navy);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--zeus-text-muted);
    border: 1px solid var(--zeus-border);
}

.field-reason {
    color: var(--zeus-text-muted);
    font-size: 0.85rem;
    line-height: 1.5;
}

.field-category {
    margin-top: 0.4rem;
    font-size: 0.75rem;
    color: var(--zeus-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Metadata Section */
.metadata-section {
    background: var(--zeus-slate);
    border: 1px solid var(--zeus-border);
    border-radius: 10px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 2rem;
}

.metadata-section h3 {
    color: var(--zeus-text);
    font-weight: 500;
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
}

.metadata-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 0.5rem;
}

.metadata-item {
    color: var(--zeus-text-muted);
    font-size: 0.85rem;
}

.metadata-item strong {
    color: var(--zeus-text);
}

/* Actions Section */
.actions-section {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

/* History Table */
.history-table {
    background: var(--zeus-slate);
    border-radius: 10px;
    border: 1px solid var(--zeus-border);
    overflow: hidden;
}

.history-table table {
    width: 100%;
    border-collapse: collapse;
}

.history-table th {
    background: var(--zeus-navy);
    color: var(--zeus-text-muted);
    padding: 0.85rem 1rem;
    text-align: left;
    font-weight: 500;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--zeus-border);
}

.history-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--zeus-border);
    font-size: 0.9rem;
    color: var(--zeus-text-muted);
}

.history-table tr:hover {
    background: rgba(30, 58, 95, 0.2);
}

.history-table tr:last-child td {
    border-bottom: none;
}

.score-badge, .level-badge, .status-badge, .confidence-badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-weight: 500;
    font-size: 0.8rem;
}

.score-badge.expert, .level-badge.expert {
    background: var(--success-bg);
    color: var(--success-text);
}

.score-badge.competent, .level-badge.competent {
    background: rgba(30, 58, 95, 0.6);
    color: var(--zeus-blue-light);
}

.score-badge.novice, .level-badge.novice {
    background: var(--warning-bg);
    color: var(--warning-text);
}

.score-badge.trainee, .level-badge.trainee {
    background: var(--danger-bg);
    color: var(--danger-text);
}

.status-badge.pass {
    color: var(--success-text);
}

.status-badge.fail {
    color: var(--danger-text);
}

.confidence-badge.ok {
    background: var(--success-bg);
    color: var(--success-text);
}

.confidence-badge.review-recommended {
    background: var(--warning-bg);
    color: var(--warning-text);
}

.confidence-badge.human-review-required {
    background: var(--danger-bg);
    color: var(--danger-text);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--zeus-text-muted);
}

.empty-state i {
    font-size: 3rem;
    color: var(--zeus-text-dim);
    margin-bottom: 1rem;
}

.empty-state h3 {
    color: var(--zeus-text);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.empty-state a {
    color: var(--zeus-blue-light);
}

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

.step {
    text-align: center;
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--zeus-blue);
    color: var(--zeus-blue-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 500;
    margin: 0 auto 0.75rem;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.step h3 {
    color: var(--zeus-text);
    font-weight: 500;
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.step p {
    color: var(--zeus-text-muted);
    font-size: 0.85rem;
}

/* Stats */
.stats-section {
    margin: 3rem 0;
}

.stats-section h2 {
    color: var(--zeus-text);
    font-weight: 500;
    margin-bottom: 1rem;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
    margin: 1rem 0;
}

.stat {
    text-align: center;
    padding: 1.5rem;
    background: var(--zeus-slate);
    border-radius: 10px;
    border: 1px solid var(--zeus-border);
}

.stat-value {
    font-size: 2rem;
    font-weight: 500;
    color: var(--zeus-gold);
}

.stat-label {
    color: var(--zeus-text-muted);
    margin-top: 0.25rem;
    font-size: 0.85rem;
}

/* Alert */
.alert {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.alert-error {
    background: var(--danger-bg);
    color: var(--danger-text);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.alert-info {
    background: rgba(30, 58, 95, 0.4);
    color: var(--zeus-blue-light);
    border: 1px solid rgba(59, 130, 246, 0.3);
}

/* Footer */
.footer {
    background: var(--zeus-navy);
    border-top: 1px solid var(--zeus-border);
    color: var(--zeus-text-dim);
    padding: 1.5rem 0;
    text-align: center;
    margin-top: 4rem;
    font-size: 0.8rem;
}

/* Responsive - Tablet */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .navbar .container {
        flex-direction: column;
        gap: 0.5rem;
    }

    .nav-brand {
        font-size: 1.1rem;
    }

    .nav-menu {
        flex-direction: row;
        gap: 0.15rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-menu a {
        padding: 0.4rem 0.75rem;
        font-size: 0.8rem;
    }

    .hero {
        padding: 2rem 1.5rem;
        margin-bottom: 2rem;
    }

    .hero .org-label {
        font-size: 0.65rem;
        letter-spacing: 2px;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .hero .subtitle {
        font-size: 0.9rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 0.75rem;
    }

    .hero-buttons .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .features {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .upload-section {
        padding: 1.5rem;
    }

    .upload-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .upload-card {
        padding: 1.25rem;
    }

    .steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .stat {
        padding: 1rem;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .summary-cards {
        grid-template-columns: 1fr;
    }

    .performance-badge {
        font-size: 2.25rem;
    }

    .history-table {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .history-table table {
        min-width: 700px;
    }

    .metadata-grid {
        grid-template-columns: 1fr;
    }

    .actions-section {
        flex-direction: column;
    }

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

    .field-header {
        flex-wrap: wrap;
        gap: 0.5rem;
    }
}

/* Responsive - Phone */
@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }

    .main-content {
        padding: 1rem 0;
    }

    .hero {
        padding: 1.5rem 1rem;
        border-radius: 8px;
        margin-bottom: 1.5rem;
    }

    .hero .org-label {
        font-size: 0.6rem;
        letter-spacing: 1.5px;
    }

    .hero h1 {
        font-size: 1.4rem;
        letter-spacing: 1px;
    }

    .features {
        margin: 2rem 0;
    }

    .feature-card {
        padding: 1.25rem;
    }

    .feature-icon {
        font-size: 1.5rem;
        margin-bottom: 0.5rem;
    }

    .steps {
        grid-template-columns: 1fr 1fr;
    }

    .step-number {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

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

    .upload-section {
        padding: 1rem;
    }

    .upload-card {
        padding: 1rem;
    }

    .upload-icon {
        font-size: 1.5rem;
    }

    .help-section {
        padding: 1rem 1.25rem;
    }

    .summary-card.overall {
        padding: 1.5rem 1rem;
    }

    .field-card {
        padding: 0.75rem 1rem;
    }

    .field-reason {
        font-size: 0.8rem;
    }

    .footer {
        margin-top: 2rem;
        padding: 1rem 0;
        font-size: 0.7rem;
    }
}