/* ========================================
   EXPLORE BASE CSS
   Shared styles for all explore pages
   Fonts: DM Serif Display + Inter
   Theme: Dark premium with gold accents
   ======================================== */

/* ===== CSS RESET ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ===== CSS VARIABLES ===== */
:root {
    /* Colors - Dark Premium Theme */
    --color-bg: #0a0a0a;
    --color-bg-alt: #141414;
    --color-surface: #1a1a1a;
    --color-gold: #c9a962;
    --color-gold-light: #e8d5a3;
    --color-gold-dark: #a8894e;
    --color-accent: #d4af37;
    --color-text: #ffffff;
    --color-text-muted: #888888;
    --color-text-dark: #666666;
    --color-border: rgba(201, 169, 98, 0.2);
    --color-border-light: rgba(255, 255, 255, 0.1);

    /* Light Theme Colors (for catalog pages) */
    --color-bg-light: #ffffff;
    --color-text-light-mode: #000000;
    --color-surface-light: #fafafa;
    --color-border-gray: #e8e8e8;
    --color-border-gray-light: #f0f0f0;

    /* Typography */
    --font-display: 'DM Serif Display', serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    --spacing-4xl: 8rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 20px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 40px 80px rgba(0, 0, 0, 0.3);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition: 0.3s ease;
    --transition-slow: 0.6s ease;

    /* Border Radius */
    --radius-sm: 4px;
    --radius: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --radius-full: 50%;

    /* Container */
    --container-max: 1400px;
    --container-narrow: 1200px;
    --container-text: 800px;
}

/* ===== BASE STYLES ===== */
body {
    font-family: var(--font-body);
    font-weight: 300;
    background: var(--color-bg-light);
    color: var(--color-text-light-mode);
    line-height: 1.7;
    letter-spacing: -0.01em;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Dark theme body */
body.dark-theme {
    background: var(--color-bg);
    color: var(--color-text);
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 500;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 500;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 500;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1rem;
}

p {
    font-size: 1rem;
    line-height: 1.7;
}

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

/* ===== CONTAINERS ===== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 8%;
}

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

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

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.875rem 2rem;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-text-light-mode);
    color: var(--color-bg-light);
}

.btn-primary:hover {
    background: #333;
}

.dark-theme .btn-primary {
    background: var(--color-gold);
    color: var(--color-bg);
}

.dark-theme .btn-primary:hover {
    background: var(--color-gold-light);
}

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

.btn-secondary:hover {
    background: var(--color-text-light-mode);
    color: var(--color-bg-light);
}

.dark-theme .btn-secondary {
    color: var(--color-gold);
    border-color: var(--color-gold);
}

.dark-theme .btn-secondary:hover {
    background: var(--color-gold);
    color: var(--color-bg);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-light-mode);
    border-bottom: 1px solid var(--color-border-gray-light);
    border-radius: 0;
    padding: 12px 24px;
}

.btn-outline:hover {
    border-bottom-color: var(--color-text-light-mode);
}

/* ===== BADGES & LABELS ===== */
.badge {
    display: inline-block;
    padding: 6px 14px;
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: var(--radius-lg);
}

.badge-gold {
    background: rgba(201, 169, 98, 0.15);
    color: var(--color-gold);
}

.badge-white {
    background: rgba(255, 255, 255, 0.95);
    color: var(--color-text-light-mode);
    backdrop-filter: blur(10px);
}

.section-label {
    font-size: 0.75rem;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 0.3em;
    margin-bottom: 1.5rem;
    font-weight: 400;
}

/* ===== CARDS ===== */
.card {
    background: var(--color-bg-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.dark-theme .card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* ===== IMAGES ===== */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ===== UTILITIES ===== */
.text-center {
    text-align: center;
}

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

.text-gold {
    color: var(--color-gold);
}

.mb-xs { margin-bottom: var(--spacing-xs); }
.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); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }

.mt-xs { margin-top: var(--spacing-xs); }
.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); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .container {
        padding: 0 6%;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
        --spacing-3xl: 4rem;
        --spacing-4xl: 5rem;
    }

    .container {
        padding: 0 5%;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 0.95rem;
    }

    .container {
        padding: 0 24px;
    }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--color-gold);
    outline-offset: 2px;
}

/* ===== LANGUAGE SWITCHER ===== */
.lang-switcher {
    position: relative;
    z-index: 1000;
}

.lang-switcher--fixed {
    position: fixed;
    top: 20px;
    right: 20px;
}

.lang-switcher__btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--color-border-gray);
    border-radius: var(--radius);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-light-mode);
    transition: var(--transition-fast);
    backdrop-filter: blur(10px);
}

.lang-switcher__btn:hover {
    background: #fff;
    border-color: var(--color-text-light-mode);
}

.lang-switcher__current {
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.lang-switcher__dropdown {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    min-width: 140px;
    background: #fff;
    border: 1px solid var(--color-border-gray);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: var(--transition-fast);
}

.lang-switcher:hover .lang-switcher__dropdown,
.lang-switcher__btn:focus + .lang-switcher__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-switcher__dropdown a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    font-size: 0.85rem;
    color: var(--color-text-light-mode);
    transition: var(--transition-fast);
}

.lang-switcher__dropdown a:hover {
    background: var(--color-surface-light);
}

.lang-switcher__dropdown a.active {
    font-weight: 600;
    background: var(--color-surface-light);
}

.lang-switcher__dropdown a:first-child {
    border-radius: var(--radius) var(--radius) 0 0;
}

.lang-switcher__dropdown a:last-child {
    border-radius: 0 0 var(--radius) var(--radius);
}

/* Dark theme for city/tour pages */
.dark-theme .lang-switcher__btn,
.hero ~ .lang-switcher .lang-switcher__btn {
    background: rgba(0, 0, 0, 0.6);
    border-color: rgba(255, 255, 255, 0.2);
    color: #fff;
}

.dark-theme .lang-switcher__btn:hover {
    background: rgba(0, 0, 0, 0.8);
    border-color: rgba(255, 255, 255, 0.4);
}

.dark-theme .lang-switcher__dropdown {
    background: var(--color-surface);
    border-color: var(--color-border);
}

.dark-theme .lang-switcher__dropdown a {
    color: var(--color-text);
}

.dark-theme .lang-switcher__dropdown a:hover,
.dark-theme .lang-switcher__dropdown a.active {
    background: var(--color-bg-alt);
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .lang-switcher--fixed {
        top: 12px;
        right: 12px;
    }

    .lang-switcher__btn {
        padding: 6px 10px;
        font-size: 0.75rem;
    }

    .lang-switcher__dropdown {
        min-width: 120px;
    }

    .lang-switcher__dropdown a {
        padding: 8px 12px;
        font-size: 0.8rem;
    }
}

/* ===== SELECTION ===== */
::selection {
    background: var(--color-gold);
    color: var(--color-bg);
}

::-moz-selection {
    background: var(--color-gold);
    color: var(--color-bg);
}