/* 
   Premium SaaS UI – Linear, Stripe & Notion Inspired
*/

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

:root {
    /* Color System */
    --color-primary: #2563EB;
    --color-primary-hover: #1D4ED8;
    --color-primary-light: #DBEAFE;
    
    --color-accent: #06B6D4;
    --color-success: #16A34A;
    --color-warning: #F59E0B;
    --color-danger: #DC2626;
    
    --color-bg: #F8FAFC;
    --color-card-bg: #FFFFFF;
    --color-bg-secondary: #EFF6FF;
    
    --color-border: #E5E7EB;
    --color-divider: #F1F5F9;
    
    --color-title: #0F172A;
    --color-body: #475569;
    --color-muted: #94A3B8;
    --color-placeholder: #CBD5E1;
    --color-dark: #020617;

    /* Shadows */
    --shadow-card: 0 10px 30px rgba(15,23,42,0.06);
    --shadow-card-hover: 0 18px 50px rgba(37,99,235,0.12);
    --shadow-btn: 0 8px 20px rgba(37,99,235,0.20);
    --shadow-nav: 0 4px 20px rgba(15,23,42,0.04);
    
    /* Border Radius */
    --radius-card: 20px;
    --radius-btn: 14px;
    --radius-input: 14px;
    --radius-badge: 999px;
    
    /* Layout */
    --max-width: 1440px;
    --content-width: 1280px;
    --spacing-unit: 8px;
    
    /* Typography */
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    
    /* Animation */
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 16px;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-title);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 { font-size: 56px; font-weight: 800; letter-spacing: -0.04em; }
h2 { font-size: 36px; font-weight: 700; letter-spacing: -0.03em; }
h3 { font-size: 22px; font-weight: 600; }

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

/* Layout Utilities */
.container {
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 96px 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-btn);
    padding: 14px 28px;
    border: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-primary);
    color: #ffffff;
    box-shadow: var(--shadow-btn);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 12px 25px rgba(37,99,235,0.30);
    color: #ffffff;
}

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

.btn-secondary:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--color-border);
    color: var(--color-title);
}

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

/* Cards */
.card {
    background: var(--color-card-bg);
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    padding: 32px;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.card-hover:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--color-primary-light);
}

/* Forms & Inputs */
.input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 20px;
    color: var(--color-muted);
    width: 20px;
    height: 20px;
}

.form-input {
    width: 100%;
    padding: 16px 20px 16px 52px;
    font-size: 16px;
    font-family: var(--font-family);
    color: var(--color-title);
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-input);
    transition: var(--transition-fast);
    outline: none;
}

.form-input::placeholder {
    color: var(--color-placeholder);
}

.form-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-light);
}

select.form-input {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 20px center;
    background-size: 16px;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: var(--radius-badge);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-primary { background: var(--color-primary-light); color: var(--color-primary); }
.badge-success { background: #DCFCE7; color: var(--color-success); }
.badge-warning { background: #FEF3C7; color: var(--color-warning); }
.badge-danger { background: #FEE2E2; color: var(--color-danger); }

/* Navigation */
.navbar-glass {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(229, 231, 235, 0.5);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-nav);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.nav-brand {
    font-size: 24px;
    font-weight: 800;
    color: var(--color-dark);
    letter-spacing: -0.04em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-link {
    color: var(--color-body);
    font-weight: 500;
    font-size: 15px;
}

.nav-link:hover {
    color: var(--color-title);
}

/* Gradients & Backgrounds */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-primary-light) 100%);
}
.bg-gradient-dark {
    background: linear-gradient(135deg, var(--color-dark) 0%, #0F172A 100%);
    color: var(--color-card-bg);
}

/* Responsive Grid */
.grid {
    display: grid;
    gap: 24px;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    h1 { font-size: 40px !important; }
    h2 { font-size: 28px !important; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .nav-links { display: none; } /* Simplified mobile for now */
    .section { padding: 56px 0; }
}

/* Custom Component Classes */
.hero-search-wrapper {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    padding: 12px;
    display: flex;
    box-shadow: var(--shadow-card);
    gap: 12px;
    align-items: center;
}

.hero-search-divider {
    width: 1px;
    height: 32px;
    background: var(--color-border);
}

.hero-input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 16px;
    color: var(--color-title);
    outline: none;
    padding: 8px;
}

@media (max-width: 768px) {
    .hero-search-wrapper {
        flex-direction: column;
        border-radius: 20px;
        padding: 16px;
        align-items: stretch;
    }
    .hero-search-divider {
        width: 100%;
        height: 1px;
        margin: 8px 0;
    }
}

/* Job Pill Tags */
.job-tag {
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    color: var(--color-body);
    padding: 8px 20px;
    border-radius: var(--radius-badge);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 2px 4px rgba(15,23,42,0.02);
}
.job-tag:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-color: var(--color-primary-light);
    transform: translateY(-1px);
}

/* Avatar / Logo Box */
.logo-box {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: var(--color-bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-weight: 700;
    font-size: 20px;
    flex-shrink: 0;
    border: 1px solid rgba(37,99,235,0.1);
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 40px;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 10px;
    bottom: 10px;
    width: 2px;
    background: var(--color-primary-light);
}
.timeline-item {
    position: relative;
    margin-bottom: 32px;
}
.timeline-dot {
    position: absolute;
    left: -40px;
    top: 4px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 0 0 4px var(--color-bg);
}

/* Feature Icon Box */
.icon-box {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--color-bg-secondary);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

/* Form Groups globally */
.form-group {
    margin-bottom: 20px;
}
.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--color-title);
    font-size: 14px;
}

/* Alerts */
.alert {
    padding: 16px;
    border-radius: var(--radius-card);
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 500;
}
.alert-error {
    background: #FEE2E2;
    color: var(--color-danger);
    border: 1px solid #FCA5A5;
}
.alert-success {
    background: #DCFCE7;
    color: var(--color-success);
    border: 1px solid #86EFAC;
}

/* Utility layout */
.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.flex-center {
    display: flex;
    justify-content: center;
    align-items: center;
}
.text-center {
    text-align: center;
}
.text-muted {
    color: var(--color-muted);
}
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 8px;
    cursor: pointer;
    color: var(--color-title);
}

/* Nav Badge */
.nav-badge {
    position: absolute;
    top: -8px;
    right: -12px;
    background: var(--color-primary);
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 700;
}

/* Premium Footer */
.site-footer {
    background: var(--color-dark);
    color: #fff;
    padding: 100px 0 40px 0;
    margin-top: 80px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 80px;
}
.footer-brand {}
.footer-logo {
    font-size: 24px;
    font-weight: 800;
    color: white;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
}
.footer-logo:hover { color: white; }
.footer-tagline {
    color: var(--color-muted);
    font-size: 15px;
    margin-bottom: 24px;
    line-height: 1.8;
}
.footer-social {
    display: flex;
    gap: 16px;
}
.footer-social a {
    color: var(--color-muted);
    transition: var(--transition-fast);
}
.footer-social a:hover {
    color: white;
}
.footer-col h4 {
    color: white;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 24px;
}
.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.footer-col a {
    color: var(--color-muted);
    font-size: 15px;
    transition: var(--transition-fast);
}
.footer-col a:hover {
    color: white;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}
.footer-bottom p {
    color: var(--color-muted);
    font-size: 14px;
}
.footer-legal {
    display: flex;
    gap: 24px;
}
.footer-legal a {
    color: var(--color-muted);
    font-size: 14px;
    transition: var(--transition-fast);
}
.footer-legal a:hover {
    color: white;
}

/* Smooth Scroll */
html { scroll-behavior: smooth; }

/* Focus Visible */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .mobile-menu-btn { display: block; }
    .nav-links {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--color-border);
        box-shadow: 0 20px 40px rgba(0,0,0,0.1);
        z-index: 999;
    }
    .nav-links.nav-open { display: flex; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .footer-legal { justify-content: center; }
}
@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
/* Legacy Admin Structural Classes */
.sidebar {
    width: 250px;
    height: 100vh;
    background: #0A2540;
    color: white;
    position: fixed;
    top: 0;
    left: 0;
    padding: 20px;
    z-index: 999;
}
.sidebar .logo {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 40px;
    color: white;
}
.nav-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.nav-list a {
    color: #94a3b8;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 8px;
    transition: all 0.2s;
}
.nav-list a:hover {
    background: rgba(255,255,255,0.1);
    color: white;
}
.main-content {
    margin-left: 250px;
    padding: 40px;
    min-height: 100vh;
}