/**
 * Layout - Structural elements (header, footer, containers)
 */

/* ============================================
   CONTAINERS
   ============================================ */

.container {
    width: 100%;
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-xl);
    padding-right: var(--spacing-xl);
}

.container-wide {
    max-width: var(--max-width-wide);
}

.container-narrow {
    max-width: var(--max-width-narrow);
}

/* ============================================
   HEADER
   ============================================ */

.header {
    background-color: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
    width: 100%;
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-xl);
    max-width: var(--max-width-wide);
    margin: 0 auto;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo a {
    display: flex;
    align-items: center;
    color: var(--color-white);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.logo a:hover {
    opacity: 0.9;
    text-decoration: none;
}

.site-logo {
    height: 60px;
    margin-right: var(--spacing-md);
    vertical-align: middle;
}

.site-name {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    font-family: var(--font-family-heading);
    letter-spacing: -0.02em;
}

/* User Navigation */
.user-nav {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.user-link {
    color: var(--color-white);
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    white-space: nowrap;
    font-weight: 500;
    cursor: pointer;
}

.user-link:hover {
    background-color: rgba(255, 255, 255, 0.15);
    color: var(--color-white);
    text-decoration: none;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    transition: background-color var(--transition-fast);
    margin-left: auto;
}

.mobile-menu-toggle:hover {
    background-color: rgba(255, 255, 255, 0.15);
}

/* Header Bottom / Main Navigation */
.header-bottom {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-xl);
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    padding: 0;
    margin: 0;
    justify-content: center;
}

.main-nav li {
    position: relative;
}

.main-nav a {
    color: var(--color-white);
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    display: block;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    font-weight: 500;
}

.main-nav a:hover,
.main-nav a.active {
    background-color: rgba(255, 255, 255, 0.15);
    text-decoration: none;
}

/* ============================================
   MAIN CONTENT
   ============================================ */

main {
    min-height: calc(100vh - 200px);
    padding: var(--spacing-xl) 0;
}

/* Common page layouts */
.page-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: var(--spacing-2xl) var(--spacing-xl);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.page-header h1 {
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.page-header p {
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* Two-column layout */
.layout-two-col {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-xl);
}

.layout-two-col-reverse {
    grid-template-columns: 300px 1fr;
}

/* Three-column layout */
.layout-three-col {
    display: grid;
    grid-template-columns: 250px 1fr 300px;
    gap: var(--spacing-xl);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
    margin-top: auto;
}

.footer-content {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links a {
    color: var(--color-white);
    text-decoration: none;
    opacity: 0.9;
    transition: opacity var(--transition-fast);
}

.footer-links a:hover {
    opacity: 1;
    text-decoration: underline;
}

.footer-copyright {
    opacity: 0.8;
    font-size: var(--font-size-sm);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.55), rgba(0, 0, 0, 0.55)),
                url('/images/hero-bg.jpg') center/cover no-repeat;
    padding: var(--spacing-3xl) var(--spacing-xl);
    text-align: center;
    color: var(--color-white);
}

.hero h1 {
    color: var(--color-white);
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: var(--font-size-lg);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    opacity: 0.95;
}

/* ============================================
   GRID UTILITIES
   ============================================ */

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* ============================================
   FLEX UTILITIES
   ============================================ */

.flex {
    display: flex;
}

.flex-wrap {
    flex-wrap: wrap;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

.gap-lg {
    gap: var(--spacing-lg);
}

/* ============================================
   SPACING UTILITIES
   ============================================ */

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.py-sm { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-md { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-lg { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-xl { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }

/* ============================================
   TEXT UTILITIES
   ============================================ */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-muted { color: var(--color-text-muted); }
.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }

.font-bold { font-weight: 600; }
.font-normal { font-weight: 400; }

/* ============================================
   FORGOT PASSWORD (Login Modal)
   ============================================ */

.forgot-password-section {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color-light);
}

.forgot-password-link {
    color: var(--color-primary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.forgot-password-link:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

/* ============================================
   AD CONTAINERS
   ============================================ */

.floating-ad-container {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: var(--z-fixed);
    max-width: 300px;
}

.banner-ad-container {
    display: none;
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    box-shadow: var(--shadow);
}