/* CSS Custom Properties */
:root {
    /* Colors - Dark Theme (Forest Green Background - Default) */
    --color-primary: #C9A86C;
    --color-primary-light: #D4BC8A;
    --color-primary-dark: #B8954F;
    --color-secondary: #2c5143;
    --color-accent: #C9A86C;
    --color-text: #F5F2ED;
    --color-text-dark: #FFFFFF;
    --color-text-light: #D4D0C8;
    --color-background: #2c5143;
    --color-background-alt: #234538;
    --color-background-card: #3d6b5a;
    --color-border: #4a7d6a;
    --color-header-bg: rgba(30, 58, 47, 0.95);

    /* Typography */
    --font-heading: 'Georgia', 'Times New Roman', serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    --font-size-base: 16px;
    --font-size-small: 0.875rem;
    --font-size-large: 1.125rem;
    --line-height-base: 1.6;
    --line-height-heading: 1.3;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;

    /* Layout */
    --container-max-width: 1200px;
    --container-padding: 1.5rem;
    --border-radius: 8px;

    /* Transitions */
    --transition-base: 0.3s ease;
}

/* Light Theme */
[data-theme="light"] {
    --color-primary: #2c5143;
    --color-primary-light: #3d6b5a;
    --color-primary-dark: #1e3a2f;
    --color-secondary: #E8E4DF;
    --color-accent: #C9A86C;
    --color-text: #2C2C2C;
    --color-text-dark: #2C2C2C;
    --color-text-light: #5a5a5a;
    --color-background: #FFFFFF;
    --color-background-alt: #F7F5F2;
    --color-background-card: #FFFFFF;
    --color-border: #E0DCD6;
    --color-header-bg: rgba(255, 255, 255, 0.95);
}

/* Reset and Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-background);
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: var(--line-height-heading);
    font-weight: 400;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.25rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-sm);
}

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

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

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

.section {
    padding: var(--spacing-xxl) 0;
}

.section:nth-child(even) {
    background-color: var(--color-background-alt);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--color-primary);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 2px;
    background-color: var(--color-accent);
}

/* Header and Navigation */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--color-header-bg);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

.main-nav {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    justify-content: center;
    align-items: center;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.hamburger {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--color-primary);
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 2px;
    background-color: var(--color-primary);
    left: 0;
    transition: transform var(--transition-base);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

.nav-list {
    list-style: none;
    display: flex;
    gap: var(--spacing-lg);
}

.nav-list a {
    color: var(--color-text-dark);
    font-weight: 500;
    text-transform: uppercase;
    font-size: var(--font-size-small);
    letter-spacing: 1px;
    padding: var(--spacing-xs) 0;
    border-bottom: 2px solid transparent;
    transition: border-color var(--transition-base);
}

.nav-list a:hover {
    border-bottom-color: var(--color-accent);
}

/* Theme Switch */
.theme-switch {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: var(--spacing-lg);
    cursor: pointer;
    user-select: none;
}

.theme-switch:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
    border-radius: 20px;
}

.theme-switch-icon {
    font-size: 1.1rem;
    line-height: 1;
    transition: opacity var(--transition-base);
}

.theme-switch-icon.sun {
    color: var(--color-accent);
    opacity: 0.5;
}

.theme-switch-icon.moon {
    color: var(--color-accent);
    opacity: 1;
}

[data-theme="light"] .theme-switch-icon.sun {
    opacity: 1;
}

[data-theme="light"] .theme-switch-icon.moon {
    opacity: 0.5;
}

.theme-switch-slider {
    position: relative;
    width: 44px;
    height: 24px;
    background-color: var(--color-background-card);
    border: 2px solid var(--color-accent);
    border-radius: 12px;
    transition: background-color var(--transition-base);
}

.theme-switch-slider::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
    background-color: var(--color-accent);
    border-radius: 50%;
    transition: transform var(--transition-base);
}

[data-theme="light"] .theme-switch-slider::after {
    transform: translateX(20px);
}

/* Home Section */
.home {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-background-alt) 100%);
    padding: var(--spacing-xl);
    margin-top: 60px;
}

.home-content {
    max-width: 800px;
}

.couple-names {
    font-family: 'Yeseva One', serif;
    font-size: 5rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-dark);
    font-weight: 400;
}

.wedding-tagline {
    font-size: var(--font-size-large);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    font-style: italic;
}

.wedding-date {
    font-size: 1.5rem;
    font-family: var(--font-heading);
    color: var(--color-text);
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--color-accent);
    border-radius: var(--border-radius);
    display: inline-block;
    background-color: rgba(0, 0, 0, 0.2);
}

/* Details Section */
.details-card {
    background: var(--color-background-card);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    margin-bottom: 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.details-venue {
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.details-venue h3 {
    color: var(--color-primary);
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
}

.details-venue address {
    font-style: normal;
    color: var(--color-text-light);
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.venue-link {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 0.95rem;
}

.venue-link:hover {
    text-decoration: underline;
}

.details-times {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.time-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

.time-row:last-child {
    border-bottom: none;
}

.time-label {
    color: var(--color-text);
    font-size: 1rem;
}

.time-value {
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
}

.dress-code {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--color-background-card);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.dress-code h3 {
    color: var(--color-primary);
}

/* Schedule Section */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    padding: 0 var(--spacing-md);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--color-accent);
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.timeline-item:nth-child(odd) .timeline-time {
    width: calc(50% - 40px);
    text-align: right;
    padding-right: var(--spacing-lg);
}

.timeline-item:nth-child(odd) .timeline-content {
    width: calc(50% - 40px);
    margin-left: auto;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-item:nth-child(even) .timeline-time {
    width: calc(50% - 40px);
    text-align: left;
    padding-left: var(--spacing-lg);
}

.timeline-item:nth-child(even) .timeline-content {
    width: calc(50% - 40px);
    margin-right: auto;
    text-align: right;
}

.timeline-time {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--color-primary);
    font-weight: 600;
}

.timeline-content {
    background-color: var(--color-background-card);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.timeline-content h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.timeline-content p {
    color: var(--color-text-light);
    margin-bottom: 0;
}

.timeline-item::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 16px;
    height: 16px;
    background-color: var(--color-accent);
    border: 3px solid var(--color-background-alt);
    border-radius: 50%;
    z-index: 1;
}

.schedule-note {
    text-align: center;
    font-size: var(--font-size-small);
    color: var(--color-text-light);
    margin-top: var(--spacing-lg);
}

/* Travel Section */
.travel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.travel-card {
    background-color: var(--color-background-card);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.travel-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.travel-card h4 {
    color: var(--color-primary);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
}

.hotel {
    padding: var(--spacing-md);
    background-color: var(--color-background-alt);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.hotel h4 {
    margin-top: 0;
}

.booking-note {
    font-size: var(--font-size-small);
    color: var(--color-text-light);
}

.map-container {
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.map-container iframe {
    display: block;
}

.venue-link-below-map {
    text-align: center;
    margin-top: var(--spacing-md);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: var(--font-size-small);
    transition: all var(--transition-base);
    border: 2px solid transparent;
    cursor: pointer;
    text-align: center;
    margin-top: var(--spacing-md);
}

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

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

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

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

/* RSVP Section */
.rsvp-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.rsvp-intro {
    font-size: var(--font-size-large);
    margin-bottom: var(--spacing-lg);
}

.rsvp-placeholder {
    background-color: var(--color-background-card);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.rsvp-placeholder ul {
    text-align: left;
    max-width: 400px;
    margin: var(--spacing-md) auto;
    list-style-position: inside;
}

.rsvp-placeholder li {
    margin-bottom: var(--spacing-xs);
}

/* Contact Section */
.contact-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-details {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background-color: var(--color-background-card);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.contact-details p {
    margin-bottom: var(--spacing-sm);
}

/* Footer */
.site-footer {
    background-color: var(--color-background-alt);
    color: var(--color-text);
    text-align: center;
    padding: var(--spacing-xl) var(--container-padding);
}

.site-footer p {
    margin-bottom: var(--spacing-xs);
}

.site-footer p:last-child {
    margin-bottom: 0;
    font-style: italic;
    color: var(--color-accent);
}