/* ==========================================================================
   PVS SPARKS CAREER PORTAL - DESIGN SYSTEM & STYLESHEET
   ========================================================================== */

:root {
    --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Primary & Brand Colors */
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #eef2ff;
    --primary-dark: #312e81;
    
    --secondary: #0f172a;
    --secondary-hover: #1e293b;
    
    --accent: #06b6d4;
    
    /* Status Colors */
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --info: #3b82f6;
    --info-light: #dbeafe;
    
    /* Neutral Palette */
    --bg-body: #f8fafc;
    --bg-card: #ffffff;
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    
    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    
    /* Shadows & Radii */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-hover);
}

img {
    max-width: 100%;
    height: auto;
}

/* Layout Containers */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.container-narrow {
    max-width: 800px;
}

.main-content {
    flex: 1;
    padding: 2.5rem 0;
}

/* Navbar */
.navbar {
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.92);
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    font-size: 1.35rem;
    color: var(--secondary);
    letter-spacing: -0.5px;
}

.brand-badge {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.75rem;
    list-style: none;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
    color: var(--primary);
}

.nav-btn {
    padding: 0.55rem 1.2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0.65rem 1.35rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff;
    box-shadow: 0 2px 4px rgba(79, 70, 229, 0.2);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.btn-secondary {
    background-color: var(--secondary);
    color: #ffffff;
}

.btn-secondary:hover {
    background-color: var(--secondary-hover);
    color: #ffffff;
    transform: translateY(-1px);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background-color: var(--primary-light);
}

.btn-sm {
    padding: 0.4rem 0.85rem;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: 0.85rem 1.75rem;
    font-size: 1.05rem;
    border-radius: var(--radius-lg);
}

.btn-full {
    width: 100%;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: capitalize;
}

.badge-internship {
    background-color: #f3e8ff;
    color: #7e22ce;
    border: 1px solid #e9d5ff;
}

.badge-fulltime {
    background-color: #ecfdf5;
    color: #047857;
    border: 1px solid #a7f3d0;
}

.badge-parttime {
    background-color: #eff6ff;
    color: #1d4ed8;
    border: 1px solid #bfdbfe;
}

.badge-contract {
    background-color: #fff7ed;
    color: #c2410c;
    border: 1px solid #ffedd5;
}

.badge-secondary {
    background-color: #f1f5f9;
    color: var(--text-muted);
}

/* Status Badges */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
}

.status-received { background-color: #f1f5f9; color: #475569; }
.status-review { background-color: #fef3c7; color: #b45309; }
.status-shortlisted { background-color: #dbeafe; color: #1e40af; }
.status-interview { background-color: #fae8ff; color: #86198f; }
.status-hired { background-color: #d1fae5; color: #065f46; }
.status-rejected { background-color: #fee2e2; color: #991b1b; }

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    color: white;
    padding: 4.5rem 0;
    border-radius: var(--radius-lg);
    margin-bottom: 2.5rem;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.25) 0%, rgba(0,0,0,0) 70%);
    pointer-events: none;
}

.hero-title {
    font-size: 2.75rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: #94a3b8;
    max-width: 680px;
    margin-bottom: 2rem;
}

/* Search & Filter Bar */
.search-filter-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    margin-top: -3.5rem;
    position: relative;
    z-index: 10;
    margin-bottom: 2.5rem;
}

.search-form {
    display: grid;
    grid-template-columns: 2fr 1.2fr 1.2fr auto;
    gap: 1rem;
    align-items: center;
}

/* Forms & Input Controls */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1.25rem;
}

.form-label {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-main);
}

.form-label .required {
    color: var(--danger);
}

.form-control {
    width: 100%;
    padding: 0.7rem 1rem;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text-main);
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
}

/* Cards & Grids */
.jobs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
}

.job-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
}

.job-card:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.job-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.job-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.3;
}

.job-department {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.job-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 1rem 0;
}

.job-meta-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.job-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    margin-top: 1rem;
}

/* File Upload Widget */
.file-upload-box {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    text-align: center;
    background-color: #fafafa;
    cursor: pointer;
    transition: var(--transition);
}

.file-upload-box:hover, .file-upload-box.dragover {
    border-color: var(--primary);
    background-color: var(--primary-light);
}

.file-upload-icon {
    width: 42px;
    height: 42px;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

/* Status Tracker Timeline */
.status-tracker-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.timeline {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin: 2.5rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 0;
    right: 0;
    height: 4px;
    background-color: var(--border-color);
    z-index: 1;
}

.timeline-progress {
    position: absolute;
    top: 20px;
    left: 0;
    height: 4px;
    background-color: var(--success);
    z-index: 1;
    transition: width 0.4s ease;
}

.timeline-step {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    flex: 1;
}

.step-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background-color: #ffffff;
    border: 3px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-muted);
    transition: var(--transition);
}

.timeline-step.completed .step-icon {
    background-color: var(--success);
    border-color: var(--success);
    color: white;
}

.timeline-step.active .step-icon {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.2);
}

.step-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-align: center;
}

.timeline-step.completed .step-label,
.timeline-step.active .step-label {
    color: var(--text-main);
}

/* Flash Messages */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success { background-color: var(--success-light); color: #065f46; border: 1px solid #a7f3d0; }
.alert-error { background-color: var(--danger-light); color: #991b1b; border: 1px solid #fecaca; }
.alert-warning { background-color: var(--warning-light); color: #92400e; border: 1px solid #fde68a; }
.alert-info { background-color: var(--info-light); color: #1e40af; border: 1px solid #bfdbfe; }

/* Admin Data Tables */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    background-color: white;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.data-table th {
    background-color: #f8fafc;
    padding: 1rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.data-table tbody tr:hover {
    background-color: #f8fafc;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: white;
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1.25rem;
    box-shadow: var(--shadow-sm);
}

.stat-icon-wrapper {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-light);
    color: var(--primary);
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 800;
    line-height: 1;
    color: var(--text-main);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Footer */
.footer {
    background-color: var(--secondary);
    color: #94a3b8;
    padding: 3rem 0 1.5rem;
    margin-top: auto;
    border-top: 1px solid #1e293b;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #1e293b;
}

.footer-brand {
    color: white;
    font-size: 1.2rem;
    font-weight: 700;
}

.footer-bottom {
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

/* Responsive adjustments */
@media (max-width: 900px) {
    .search-form {
        grid-template-columns: 1fr;
    }
    .hero-title {
        font-size: 2rem;
    }
    .timeline {
        flex-direction: column;
        gap: 1.5rem;
        align-items: flex-start;
    }
    .timeline::before {
        display: none;
    }
}