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

:root {
    --bg-dark: #0a051b;
    --bg-card: rgba(25, 18, 48, 0.45);
    --border-color: rgba(255, 255, 255, 0.08);
    --primary-grad: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --secondary-grad: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --accent-glow: 0 0 20px rgba(168, 85, 247, 0.4);
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --accent: #a855f7;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-body);
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    overflow-x: hidden;
    min-height: 100vh;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(168, 85, 247, 0.15) 0%, transparent 40%);
    background-attachment: fixed;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* Header & Nav */
header {
    background: rgba(10, 5, 27, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    transition: background 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.6rem;
    font-weight: 800;
    background: var(--primary-grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    font-weight: 400;
    color: var(--text-main);
    -webkit-text-fill-color: var(--text-main);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s, transform 0.2s;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-main);
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--primary-grad);
    color: #fff;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--accent-glow);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-muted);
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    border-radius: 8px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 2rem 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: var(--primary-grad);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

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

/* Glass Card */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2.5rem;
    transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1), border-color 0.3s, box-shadow 0.4s;
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(168, 85, 247, 0.35);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), var(--accent-glow);
}

/* Pages Styling & Containers */
.page-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 7rem 2rem 3rem;
}

.auth-card {
    max-width: 450px;
    margin: 4rem auto;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
}

.form-control {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.8rem 1rem;
    color: var(--text-main);
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 15px rgba(168, 85, 247, 0.25);
}

/* Dashboard Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.dashboard-sidebar {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    border-radius: 12px;
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.sidebar-link:hover, .sidebar-link.active {
    background: var(--border-color);
    color: var(--text-main);
    transform: translateX(4px);
}

.sidebar-link.active {
    border-left: 3px solid var(--accent);
}

/* AI Matches Card Grid */
.matches-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.match-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.match-badge {
    background: rgba(168, 85, 247, 0.2);
    color: var(--accent);
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    width: fit-content;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Chat Layout */
.chat-container {
    display: grid;
    grid-template-columns: 320px 1fr;
    height: 70vh;
    border-radius: 24px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    overflow: hidden;
}

.chat-sidebar {
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
}

.chat-user-item {
    padding: 1.25rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background 0.3s;
}

.chat-user-item:hover, .chat-user-item.active {
    background: rgba(255, 255, 255, 0.05);
}

.chat-main {
    display: grid;
    grid-template-rows: auto 1fr auto;
    background: rgba(10, 5, 27, 0.2);
    height: 70vh;
    max-height: 70vh;
    min-height: 0;
}

.chat-header {
    padding: 1.25rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-card);
}

.chat-messages {
    padding: 1.5rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-height: 0;
}

.message-bubble {
    max-width: 60%;
    padding: 1rem;
    border-radius: 16px;
    font-size: 0.95rem;
}

.message-sent {
    background: var(--primary-grad);
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.message-received {
    background: rgba(255, 255, 255, 0.08);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.chat-input-area {
    padding: 1.25rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* Pricing Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.pricing-card {
    text-align: center;
    position: relative;
}

.pricing-card.popular {
    border-color: var(--accent);
    box-shadow: var(--accent-glow);
}

.price {
    font-size: 3rem;
    font-weight: 800;
    margin: 1.5rem 0;
}

/* Admin Grid */
.admin-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* Skill Tags */
.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1rem 0;
}

.skill-tag {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: 0.3rem 0.6rem;
    border-radius: 8px;
    font-size: 0.85rem;
}

.skill-tag.offered {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border-color: rgba(16, 185, 129, 0.2);
}

.skill-tag.wanted {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
    border-color: rgba(59, 130, 246, 0.2);
}

/* Responsive adjustments */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    .hero-text h1 {
        font-size: 3rem;
    }
    .hero-buttons {
        justify-content: center;
    }
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    .chat-container {
        grid-template-columns: 1fr;
        height: auto;
    }
    .chat-sidebar {
        max-height: 200px;
    }
}