/* FriendCore Base Stylesheet */
/* Uses theme variables from facebook/css/styles.css */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

h1 {
    font-size: clamp(1.75rem, 1.25rem + 1.5vw, 2.5rem);
}

h2 {
    font-size: clamp(1.5rem, 1.15rem + 1vw, 2rem);
}

h3 {
    font-size: clamp(1.25rem, 1.1rem + 0.5vw, 1.5rem);
}

p {
    margin-bottom: var(--space-md);
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
}

/* Header and Navigation */
.friendcore-header {
    background-color: var(--bg-surface);
    color: var(--text-primary);
    padding: 0;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.friendcore-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.friendcore-nav-brand h1 {
    margin: 0;
    font-size: 1.5rem;
}

.friendcore-nav-brand a {
    color: var(--accent-primary);
}

.friendcore-nav-brand a:hover {
    color: var(--accent-secondary);
    text-decoration: none;
}

.friendcore-nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-xl);
}

.friendcore-nav-links a {
    color: var(--text-primary);
    transition: all 0.3s ease;
    font-weight: 500;
}

.friendcore-nav-links a:hover {
    color: var(--accent-primary);
    text-decoration: none;
}

/* Main Content */
.friendcore-main {
    min-height: calc(100vh - 300px);
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-xl);
}

.friendcore-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Hero Section */
.friendcore-hero {
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
    color: var(--bg-primary);
    padding: var(--space-xl) var(--space-md);
    text-align: center;
    margin-bottom: var(--space-xl);
    border-radius: var(--radius-md);
}

.friendcore-hero-content h2 {
    color: var(--bg-primary);
    margin-bottom: var(--space-md);
}

.friendcore-hero-content p {
    font-size: 1.25rem;
    margin-bottom: 0;
}

/* Info Cards */
.friendcore-info {
    padding: var(--space-xl) 0;
    margin-bottom: var(--space-xl);
}

.friendcore-info-card {
    background-color: var(--bg-surface);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    border: 2px solid var(--border);
    margin-bottom: var(--space-md);
    transition: all 0.3s ease;
}

.friendcore-info-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.friendcore-info-card h3 {
    color: var(--accent-primary);
    margin-bottom: var(--space-sm);
}

@media (min-width: 768px) {
    .friendcore-info {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-md);
    }

    .friendcore-info-card {
        margin-bottom: 0;
    }
}

/* Footer */
.friendcore-footer {
    background-color: var(--bg-surface);
    color: var(--text-secondary);
    text-align: center;
    padding: var(--space-xl) var(--space-md);
    margin-top: var(--space-xl);
    font-size: 0.875rem;
    border-top: 2px solid var(--border);
}

.friendcore-footer p {
    margin-bottom: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .friendcore-nav {
        flex-direction: column;
        gap: var(--space-md);
        padding: var(--space-md);
    }

    .friendcore-nav-links {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        gap: var(--space-sm);
        width: 100%;
    }

    .friendcore-nav-links .nav-hide-mobile {
        display: none;
    }

    .friendcore-nav-links .nav-user-dropdown {
        order: -1;
    }

    .friendcore-nav-links .nav-user-dropdown .dropdown-menu {
        right: auto;
        left: 0;
    }

    .friendcore-nav-links .nav-notification {
        margin-left: auto;
    }

    .friendcore-nav-links a,
    .friendcore-nav-links .btn {
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    .friendcore-main {
        padding: var(--space-md);
    }

    .friendcore-hero {
        padding: var(--space-xl) var(--space-md);
    }
}