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

:root {
    --dark-slate: #0F172A;
    --dark-secondary: #1E293B;
    --blue-primary: #3B82F6;
    --blue-dark: #2563EB;
    --cyan-accent: #06B6D4;
    --text-light: #E2E8F0;
    --text-muted: #94A3B8;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --border-color: #334155;
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
}

body {
    font-family: 'Inter', 'Poppins', system-ui, -apple-system, sans-serif;
    background: var(--dark-slate);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

/* SCROLLBAR */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dark-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--blue-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--blue-dark);
}

/* HEADER */
.header {
    background: linear-gradient(135deg, var(--dark-secondary) 0%, #1a2f4a 100%);
    border-bottom: 1px solid var(--border-color);
    padding: var(--space-md) var(--space-lg);
    display: grid;
    grid-template-columns: 1fr auto auto auto auto;
    gap: var(--space-lg);
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    transition: transform 0.2s;
}

.header-logo:hover {
    transform: translateY(-2px);
}

.header-logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--blue-primary), var(--cyan-accent));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 20px;
}

.header-logo-text h1 {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.header-logo-text p {
    font-size: 11px;
    color: var(--cyan-accent);
    letter-spacing: 1px;
}

.badge-ai {
    display: inline-block;
    background: linear-gradient(135deg, var(--cyan-accent), var(--blue-primary));
    color: var(--dark-slate);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    animation: pulse 2s infinite;
    margin-top: 4px;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.header-controls {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

select, input[type="date"] {
    background: var(--dark-slate);
    border: 1px solid var(--border-color);
    color: var(--text-light);
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: border-color 0.2s;
}

select:hover, input[type="date"]:hover {
    border-color: var(--blue-primary);
}

.chart-skeleton {
    display: block;
    width: 100%;
    height: 260px;
    border-radius: 16px;
    margin-top: 12px;
    background: linear-gradient(90deg, rgba(15,23,42,0.95) 0%, rgba(30,41,59,0.95) 40%, rgba(15,23,42,0.95) 100%);
    background-size: 200% 100%;
    animation: shimmer 1.8s infinite linear;
    position: absolute;
    inset: 64px 24px 24px 24px;
    z-index: 10;
}

.chart-fallback {
    display: none;
    width: 100%;
    min-height: 260px;
    border-radius: 16px;
    background: rgba(15,23,42,0.95);
    border: 1px dashed rgba(148,163,184,0.4);
    color: var(--text-muted);
    font-size: 14px;
    padding: 1rem;
    display: grid;
    place-items: center;
    text-align: center;
    position: absolute;
    inset: 64px 24px 24px 24px;
    z-index: 10;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--blue-primary), var(--cyan-accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
}

.user-avatar:hover {
    transform: scale(1.05);
}

/* MAIN CONTAINER */
.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--space-lg);
}

/* GRID LAYOUT */
.page-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

/* CARDS */
.card {
    background: linear-gradient(135deg, var(--dark-secondary) 0%, #0f1e2e 100%);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--space-md);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05), transparent);
    transition: left 0.5s;
}

.card:hover {
    border-color: var(--blue-primary);
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.15);
    transform: translateY(-4px);
}

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

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.info-icon {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 1px solid var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    cursor: help;
    transition: all 0.2s;
    background: none;
    padding: 0;
}

.info-icon:hover {
    background: var(--blue-primary);
    border-color: var(--blue-primary);
    color: var(--dark-slate);
}

.metric-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-light);
    margin: var(--space-sm) 0;
}

.metric-change {
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--success);
    font-weight: 500;
}

.metric-change.negative {
    color: var(--danger);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--dark-slate);
    border-radius: 4px;
    overflow: hidden;
    margin-top: var(--space-sm);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--blue-primary), var(--cyan-accent));
    transition: width 0.3s ease;
}

/* SECTIONS */
.section {
    margin-bottom: var(--space-lg);
}

.section-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-title .info-icon {
    width: 18px;
    height: 18px;
    font-size: 11px;
}

/* CHARTS GRID */
.charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.chart-container {
    background: linear-gradient(135deg, var(--dark-secondary) 0%, #0f1e2e 100%);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--space-md);
    transition: all 0.3s;
    position: relative;
}

.chart-container:hover {
    border-color: var(--blue-primary);
}

.chart-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: 8px;
}

canvas {
    max-height: 300px;
    width: 100% !important;
    height: 300px !important;
    display: block;
    position: relative;
    z-index: 5;
}

/* TABS */
.tabs {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--space-sm);
}

.tab {
    padding: var(--space-sm) var(--space-md);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
}

.tab:hover {
    color: var(--blue-primary);
}

.tab.active {
    color: var(--cyan-accent);
}

.tab.active::after {
    content: '';
    position: absolute;
    bottom: -var(--space-sm);
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--blue-primary), var(--cyan-accent));
}

/* CANDIDATE CARDS */
.candidates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-md);
}

.candidate-card {
    background: linear-gradient(135deg, var(--dark-secondary) 0%, #0f1e2e 100%);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--space-md);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.candidate-card::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    background: linear-gradient(135deg, var(--blue-primary), var(--cyan-accent));
    border-radius: 12px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s;
}

.candidate-card:hover {
    border-color: var(--blue-primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(59, 130, 246, 0.2);
}

.candidate-card:hover::before {
    opacity: 0.1;
}

.candidate-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-md);
}

.candidate-avatar {
    width: 56px;
    height: 56px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--blue-primary), var(--cyan-accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 600;
    color: var(--dark-slate);
}

.candidate-badges {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 4px;
    width: fit-content;
}

.badge-new {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
    border: 1px solid var(--success);
}

.badge-processing {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
    border: 1px solid var(--warning);
    animation: pulse 1.5s infinite;
}

.candidate-id {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 4px;
}

.candidate-seniority {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.match-score {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-sm);
}

.match-label {
    font-size: 13px;
    color: var(--text-muted);
}

.match-value {
    font-size: 16px;
    font-weight: 700;
    color: var(--cyan-accent);
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: var(--space-md);
}

.skill-tag {
    font-size: 11px;
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid var(--blue-primary);
    color: var(--blue-primary);
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s;
}

.skill-tag:hover {
    background: rgba(59, 130, 246, 0.3);
}

.candidate-actions {
    display: flex;
    gap: var(--space-sm);
}

.btn {
    flex: 1;
    padding: 8px 12px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    transition: all 0.2s;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--blue-primary), var(--blue-dark));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-light);
}

.btn-secondary:hover {
    border-color: var(--cyan-accent);
    color: var(--cyan-accent);
}

/* ALERTS & NOTIFICATIONS */
.alert {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(59, 130, 246, 0.15));
    border: 1px solid var(--cyan-accent);
    border-radius: 12px;
    padding: var(--space-md);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.alert-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.alert-content h4 {
    font-size: 14px;
    margin-bottom: 4px;
    color: var(--cyan-accent);
}

.alert-content p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}

.toast {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    background: linear-gradient(135deg, var(--dark-secondary), var(--dark-slate));
    border: 1px solid var(--cyan-accent);
    border-radius: 8px;
    padding: var(--space-md);
    min-width: 300px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.3s ease-out, slideDown 0.3s ease-in 4.7s;
    z-index: 1000;
}

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

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

.toast-title {
    font-weight: 600;
    color: var(--cyan-accent);
    font-size: 14px;
    margin-bottom: 4px;
}

.toast-msg {
    font-size: 13px;
    color: var(--text-muted);
}

/* TIMELINE */
.timeline {
    position: relative;
    padding-left: var(--space-lg);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 3px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--blue-primary), var(--cyan-accent));
}

.timeline-item {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    position: relative;
}

.timeline-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--blue-primary);
    position: absolute;
    left: -18px;
    top: 4px;
}

.timeline-content {
    flex: 1;
}

.timeline-time {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.timeline-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-light);
}

.timeline-desc {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* INTERVIEW SECTION */
.interview-box {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(59, 130, 246, 0.1));
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
}

.interview-box h4 {
    color: var(--cyan-accent);
    margin-bottom: var(--space-sm);
    font-size: 14px;
}

.interview-script {
    background: var(--dark-slate);
    border-left: 3px solid var(--blue-primary);
    padding: var(--space-md);
    border-radius: 4px;
    font-size: 13px;
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.interview-tips {
    background: transparent;
    padding: 0;
}

.interview-tip {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
    font-size: 13px;
    color: var(--text-light);
}

.interview-tip::before {
    content: '→';
    color: var(--warning);
    font-weight: bold;
    flex-shrink: 0;
}

/* SEARCH BOX */
.search-box {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

input[type="text"] {
    flex: 1;
    background: var(--dark-slate);
    border: 1px solid var(--border-color);
    color: var(--text-light);
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 13px;
    transition: border-color 0.2s;
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--cyan-accent);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

/* FOOTER */
.footer {
    background: var(--dark-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--space-lg);
    text-align: center;
    margin-top: var(--space-xl);
}

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

.footer-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    animation: pulse 2s infinite;
}

.footer-cta {
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--blue-primary), var(--blue-dark));
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    transition: all 0.2s;
}

.footer-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

.footer-text {
    font-size: 12px;
    color: var(--text-muted);
    width: 100%;
}

/* FAIRNESS SECTION */
.fairness-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.fairness-metric {
    background: linear-gradient(135deg, var(--dark-secondary) 0%, #0f1e2e 100%);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--space-md);
    text-align: center;
}

.fairness-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.fairness-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--cyan-accent);
    margin-bottom: 8px;
}

.fairness-bar {
    width: 100%;
    height: 6px;
    background: var(--dark-slate);
    border-radius: 3px;
    overflow: hidden;
}

.fairness-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--success), var(--warning));
    transition: width 0.5s ease;
}

/* MODAL */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

.modal-content {
    background: var(--dark-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: var(--space-lg);
    max-width: 700px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease-out;
}

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

.modal-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-light);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 20px;
    cursor: pointer;
    transition: color 0.2s;
    padding: 0;
}

.modal-close:hover {
    color: var(--text-light);
}

/* TAB CONTENT */
.tab-content {
    display: none;
}

/* RESPONSIVE */
@media (max-width: 1400px) {
    .page-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .header {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }

    .header-controls {
        width: 100%;
        flex-wrap: wrap;
    }

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

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

    .container {
        padding: var(--space-sm);
    }

    .modal-content {
        width: 95%;
        padding: var(--space-md);
    }
}

/* SKELETON LOADING */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.skeleton {
    background: linear-gradient(90deg, var(--dark-secondary) 25%, #1a2f4a 50%, var(--dark-secondary) 75%);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
    border-radius: 6px;
}

.skeleton-text {
    height: 16px;
    margin-bottom: 8px;
}

.skeleton-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}