/* ==========================================================================
   Internship Portal — Global Design System & Core Stylesheet
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@500;600;700;800&display=swap');

:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #eef2ff;
    --secondary-color: #0ea5e9;
    --accent-color: #10b981;
    --dark-bg: #0f172a;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --bg-light: #f8fafc;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --success-color: #10b981;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --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(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-light);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-primary);
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* NAVBAR */
.navbar {
    background: #ffffff;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

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

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--dark-bg);
}

.company-logo-img {
    height: 36px;
    width: auto;
    object-fit: contain;
    transition: transform 0.25s ease;
}

.brand-logo:hover .company-logo-img {
    transform: scale(1.04);
}

.logo-divider {
    height: 26px;
    width: 1.5px;
    background: #cbd5e1;
    display: inline-block;
}

.brand-badge {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

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

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #4338ca);
    color: white;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(79, 70, 229, 0.35);
    color: white;
}

.btn-secondary {
    background: var(--primary-light);
    color: var(--primary-color);
}

.btn-secondary:hover {
    background: #e0e7ff;
}

.btn-outline {
    border-color: var(--border-color);
    background: white;
    color: var(--text-primary);
}

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

.btn-outline-white {
    border: 1px solid rgba(255, 255, 255, 0.35);
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff !important;
    backdrop-filter: blur(4px);
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.22);
    border-color: rgba(255, 255, 255, 0.6);
    color: #ffffff !important;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

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

/* HERO SECTION */
.hero {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.78) 0%, rgba(30, 27, 75, 0.88) 100%), 
                url('../images/company-building.jpg') center/cover no-repeat;
    color: white;
    padding: 5rem 0 6rem;
    position: relative;
    overflow: hidden;
}

.hero::after {
    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%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.25rem;
    color: white;
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.hero-content h1 span {
    background: linear-gradient(135deg, #818cf8, #38bdf8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.2rem;
    color: #94a3b8;
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.stat-item h4 {
    font-size: 1.8rem;
    color: white;
}

.stat-item p {
    font-size: 0.85rem;
    color: #94a3b8;
    margin-bottom: 0;
}

/* SOLID HERO TRACKS CARD (NO GLASSMORPHISM) */
.hero-tracks-wrapper {
    display: flex;
    flex-direction: column;
    width: 100%;
}

.tracks-container-card {
    background: #0b1329;
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 1.25rem;
    padding: 1.6rem;
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.6);
}

.tracks-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.tracks-card-title {
    font-size: 0.82rem;
    color: #94a3b8;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.live-dot-pulse {
    width: 8px;
    height: 8px;
    background-color: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    animation: pulseGreen 2s infinite;
}

@keyframes pulseGreen {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.tracks-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.track-item-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: #172036;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 0.85rem;
    padding: 0.85rem 1rem;
    transition: all 0.25s ease;
}

.track-item-card:hover {
    border-color: rgba(59, 130, 246, 0.5);
    background: #1e293b;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
}

.track-icon-box {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.icon-blue { background: rgba(59, 130, 246, 0.18); color: #60a5fa; border: 1px solid rgba(59, 130, 246, 0.35); }
.icon-purple { background: rgba(168, 85, 247, 0.18); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.35); }
.icon-cyan { background: rgba(6, 182, 212, 0.18); color: #22d3ee; border: 1px solid rgba(6, 182, 212, 0.35); }
.icon-orange { background: rgba(249, 115, 22, 0.18); color: #fb923c; border: 1px solid rgba(249, 115, 22, 0.35); }

.track-info {
    flex: 1;
}

.track-title {
    color: #ffffff;
    font-weight: 700;
    font-size: 0.93rem;
}

.track-skills {
    color: #94a3b8;
    font-size: 0.78rem;
    margin-top: 2px;
}

.seat-pill {
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.25rem 0.65rem;
    border-radius: 20px;
    white-space: nowrap;
}

.pill-green { background: rgba(16, 185, 129, 0.18); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.35); }
.pill-amber { background: rgba(245, 158, 11, 0.18); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.35); }

/* SECTION TITLES */
.section {
    padding: 4.5rem 0;
}

.section-header {
    text-align: center;
    max-width: 650px;
    margin: 0 auto 3rem;
}

.section-header h2 {
    font-size: 2.25rem;
    margin-bottom: 0.75rem;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* CARDS & GRIDS */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.75rem;
}

/* FEATURES GRID & CARDS */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.75rem;
}

.feature-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 1rem;
    padding: 2rem 1.75rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.04), 0 2px 4px -1px rgba(0, 0, 0, 0.02);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.03);
    border-color: #cbd5e1;
}

.feature-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 0.6rem;
}

.feature-card p {
    color: #64748b;
    font-size: 0.93rem;
    line-height: 1.6;
    margin: 0;
}

.feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    flex-shrink: 0;
}

.icon-blue-light { background: #e0f2fe; color: #0284c7; }
.icon-amber-light { background: #fef3c7; color: #d97706; }
.icon-emerald-light { background: #d1fae5; color: #059669; }
.icon-purple-light { background: #f3e8ff; color: #7c3aed; }
.icon-rose-light { background: #fee2e2; color: #dc2626; }
.icon-indigo-light { background: #e0e7ff; color: #4338ca; }

.card {
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 1.75rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: #cbd5e1;
}

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

.card-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
    background: var(--primary-light);
    color: var(--primary-color);
}

.card-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.card-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.card-body {
    flex: 1;
    margin-bottom: 1.5rem;
}

.meta-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.meta-tag {
    font-size: 0.8rem;
    background: var(--bg-light);
    color: var(--text-secondary);
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
}

/* BADGES & STATUS */
.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: capitalize;
}

.status-new { background: #e0f2fe; color: #0369a1; }
.status-under-review { background: #fef3c7; color: #b45309; }
.status-shortlisted { background: #dcfce7; color: #15803d; }
.status-interview-scheduled { background: #f3e8ff; color: #6b21a8; }
.status-selected { background: #ecfdf5; color: #047857; }
.status-rejected { background: #fee2e2; color: #b91c1c; }
.status-on-hold { background: #f3f4f6; color: #4b5563; }
.status-joined { background: #cff4fc; color: #055160; }

/* FOOTER */
.footer {
    background: #090d16;
    color: #94a3b8;
    padding: 4.5rem 0 2rem;
    margin-top: auto;
    position: relative;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2.2fr 1fr 1.2fr 1.6fr;
    gap: 2.5rem;
    margin-bottom: 3.5rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-logo-img {
    height: 42px;
    width: auto;
    object-fit: contain;
    margin-bottom: 1rem;
    background: #ffffff;
    padding: 4px 10px;
    border-radius: 8px;
}

.footer-tagline {
    color: #ffffff;
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    font-family: 'Outfit', sans-serif;
}

.footer-desc {
    color: #94a3b8;
    font-size: 0.88rem;
    line-height: 1.65;
    margin-bottom: 1.25rem;
    max-width: 380px;
}

.social-heading {
    color: #ffffff;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.social-icons-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.social-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.05rem;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.social-btn:hover {
    transform: translateY(-3px);
    color: #ffffff;
}

.social-btn.facebook { background: #1877f2; box-shadow: 0 4px 10px rgba(24, 119, 242, 0.3); }
.social-btn.instagram { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); box-shadow: 0 4px 10px rgba(220, 39, 67, 0.3); }
.social-btn.linkedin { background: #0a66c2; box-shadow: 0 4px 10px rgba(10, 102, 194, 0.3); }
.social-btn.youtube { background: #ff0000; box-shadow: 0 4px 10px rgba(255, 0, 0, 0.3); }

.footer-title {
    color: #ffffff;
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 32px;
    height: 2.5px;
    background: #7c3aed;
    border-radius: 2px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.footer-links a {
    color: #94a3b8;
    font-size: 0.9rem;
    transition: color 0.2s ease, transform 0.2s ease;
    display: inline-block;
}

.footer-links a:hover {
    color: #ffffff;
    transform: translateX(3px);
}

.contact-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.88rem;
    color: #cbd5e1;
    line-height: 1.5;
}

.contact-item span.icon {
    flex-shrink: 0;
    font-size: 1.1rem;
    margin-top: 1px;
}

.contact-item a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.2s ease;
}

.contact-item a:hover {
    color: #38bdf8;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.85rem;
    color: #64748b;
}

.scroll-top-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: linear-gradient(135deg, #7c3aed, #4f46e5);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(124, 58, 237, 0.4);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    border: none;
    cursor: pointer;
}

.scroll-top-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(124, 58, 237, 0.6);
    color: #ffffff;
}

@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* ==========================================================================
   THEMED FORM CONTROLS & INPUT SYSTEM
   ========================================================================== */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.form-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    display: block;
}

.form-control {
    width: 100%;
    padding: 0.7rem 1rem;
    font-size: 0.92rem;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text-primary);
    background-color: #ffffff;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.form-control:hover {
    border-color: #cbd5e1;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3.5px var(--primary-light);
    background-color: #ffffff;
}

select.form-control {
    padding-right: 2.5rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b' stroke-width='2.5'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.85rem center;
    background-size: 1rem;
    cursor: pointer;
}

select.form-control option {
    padding: 0.5rem;
    font-size: 0.92rem;
    color: var(--text-primary);
    background: #ffffff;
}

/* ==========================================================================
   PAGE PRELOADER SCREEN (2-SECOND SPLASH)
   ========================================================================== */
.page-preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #0b0f19;
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 1;
    visibility: visible;
}

.page-preloader.preloader-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.preloader-logo-wrapper {
    position: relative;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.preloader-spinner-ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 3.5px solid rgba(255, 255, 255, 0.08);
    border-top-color: #6366f1;
    border-right-color: #a855f7;
    border-bottom-color: #ec4899;
    animation: preloaderSpin 1s linear infinite;
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.2);
}

.preloader-logo-img {
    width: 82px;
    height: 82px;
    border-radius: 50%;
    object-fit: contain;
    animation: preloaderPulse 1.5s ease-in-out infinite alternate;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.3));
}

.preloader-title {
    font-size: 1.35rem;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: -0.01em;
    margin-bottom: 0.25rem;
}

.preloader-title span {
    color: #6366f1;
    font-weight: 600;
}

.preloader-subtitle {
    font-size: 0.88rem;
    color: #94a3b8;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.preloader-dots {
    display: inline-block;
    animation: preloaderDots 1.4s infinite;
}

@keyframes preloaderSpin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes preloaderPulse {
    0% { transform: scale(0.95); opacity: 0.85; }
    100% { transform: scale(1.06); opacity: 1; }
}

@keyframes preloaderDots {
    0%, 20% { opacity: 0; }
    50% { opacity: 1; }
    100% { opacity: 0; }
}