/* ==========================================================================
   LINA ARCHITECTURE - SHARED CSS
   Global Reset, Typography, Color Variables, Utility Classes
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS CUSTOM PROPERTIES (VARIABLES)
   -------------------------------------------------------------------------- */
:root {
    /* Brand Colors */
    --color-primary: #1C2B3A;           /* Deep Slate Navy */
    --color-secondary: #C8A97E;         /* Warm Champagne Gold */
    --color-accent: #F4F1EC;            /* Off-White Linen */
    
    /* Extended Palette */
    --color-white: #FFFFFF;
    --color-black: #000000;
    --color-gray-100: #F8F9FA;
    --color-gray-200: #E9ECEF;
    --color-gray-300: #DEE2E6;
    --color-gray-400: #CED4DA;
    --color-gray-500: #ADB5BD;
    --color-gray-600: #6C757D;
    --color-gray-700: #495057;
    --color-gray-800: #343A40;
    --color-gray-900: #212529;
    
    /* Functional Colors */
    --color-success: #28A745;
    --color-error: #DC3545;
    --color-warning: #FFC107;
    --color-info: #17A2B8;
    
    /* WhatsApp Green */
    --color-whatsapp: #25D366;
    
    /* Typography */
    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Font Sizes */
    --text-xs: 0.75rem;      /* 12px */
    --text-sm: 0.875rem;     /* 14px */
    --text-base: 1rem;       /* 16px */
    --text-lg: 1.125rem;     /* 18px */
    --text-xl: 1.25rem;      /* 20px */
    --text-2xl: 1.5rem;      /* 24px */
    --text-3xl: 1.875rem;    /* 30px */
    --text-4xl: 2.25rem;     /* 36px */
    --text-5xl: 3rem;        /* 48px */
    --text-6xl: 3.75rem;     /* 60px */
    
    /* Font Weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    
    /* Line Heights */
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;
    
    /* Spacing Scale */
    --space-1: 0.25rem;      /* 4px */
    --space-2: 0.5rem;       /* 8px */
    --space-3: 0.75rem;      /* 12px */
    --space-4: 1rem;         /* 16px */
    --space-5: 1.25rem;      /* 20px */
    --space-6: 1.5rem;       /* 24px */
    --space-8: 2rem;         /* 32px */
    --space-10: 2.5rem;      /* 40px */
    --space-12: 3rem;        /* 48px */
    --space-16: 4rem;        /* 64px */
    --space-20: 5rem;        /* 80px */
    --space-24: 6rem;        /* 96px */
    
    /* Border Radius */
    --radius-sm: 0.25rem;    /* 4px */
    --radius-md: 0.5rem;     /* 8px */
    --radius-lg: 0.75rem;    /* 12px */
    --radius-xl: 1rem;       /* 16px */
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Z-Index Scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-popover: 600;
    --z-tooltip: 700;
    --z-floating: 9999;
    
    /* Container Widths */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1200px;
    --container-2xl: 1400px;
    
    /* Navbar Height */
    --navbar-height: 80px;
    --navbar-height-mobile: 70px;
}

/* --------------------------------------------------------------------------
   CSS RESET
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    line-height: var(--leading-relaxed);
    color: var(--color-primary);
    background-color: var(--color-accent);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    color: var(--color-primary);
    text-wrap: balance;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

/* Paragraphs */
p {
    margin-bottom: var(--space-4);
    text-wrap: pretty;
}

/* Links */
a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-base);
}

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

/* Lists */
ul, ol {
    list-style: none;
}

/* Images */
img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
    height: auto;
}

/* Form Elements */
input, button, textarea, select {
    font: inherit;
    color: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}

/* Tables */
table {
    border-collapse: collapse;
    border-spacing: 0;
}

/* Remove default styling */
fieldset {
    border: none;
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* --------------------------------------------------------------------------
   TYPOGRAPHY UTILITIES
   -------------------------------------------------------------------------- */
.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }
.text-3xl { font-size: var(--text-3xl); }
.text-4xl { font-size: var(--text-4xl); }
.text-5xl { font-size: var(--text-5xl); }
.text-6xl { font-size: var(--text-6xl); }

.font-heading { font-family: var(--font-heading); }
.font-body { font-family: var(--font-body); }

.font-light { font-weight: var(--font-light); }
.font-normal { font-weight: var(--font-normal); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }

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

.uppercase { text-transform: uppercase; }
.lowercase { text-transform: lowercase; }
.capitalize { text-transform: capitalize; }

.leading-tight { line-height: var(--leading-tight); }
.leading-normal { line-height: var(--leading-normal); }
.leading-relaxed { line-height: var(--leading-relaxed); }

/* --------------------------------------------------------------------------
   COLOR UTILITIES
   -------------------------------------------------------------------------- */
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-accent { color: var(--color-accent); }
.text-white { color: var(--color-white); }
.text-gray { color: var(--color-gray-600); }

.bg-primary { background-color: var(--color-primary); }
.bg-secondary { background-color: var(--color-secondary); }
.bg-accent { background-color: var(--color-accent); }
.bg-white { background-color: var(--color-white); }
.bg-linen { background-color: var(--color-accent); }

/* --------------------------------------------------------------------------
   LAYOUT UTILITIES
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container-xl);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

.container-sm { max-width: var(--container-sm); }
.container-md { max-width: var(--container-md); }
.container-lg { max-width: var(--container-lg); }
.container-xl { max-width: var(--container-xl); }
.container-2xl { max-width: var(--container-2xl); }

/* Flexbox */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.flex-1 { flex: 1; }

/* Grid */
.grid { display: grid; }
.grid-two { grid-template-columns: repeat(2, 1fr); }
.grid-three { grid-template-columns: repeat(3, 1fr); }
.grid-four { grid-template-columns: repeat(4, 1fr); }

.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.gap-10 { gap: var(--space-10); }
.gap-12 { gap: var(--space-12); }

/* --------------------------------------------------------------------------
   SPACING UTILITIES
   -------------------------------------------------------------------------- */
/* Margin */
.m-0 { margin: 0; }
.m-auto { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.my-4 { margin-top: var(--space-4); margin-bottom: var(--space-4); }
.my-8 { margin-top: var(--space-8); margin-bottom: var(--space-8); }
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

/* Padding */
.p-0 { padding: 0; }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }
.py-12 { padding-top: var(--space-12); padding-bottom: var(--space-12); }
.py-16 { padding-top: var(--space-16); padding-bottom: var(--space-16); }
.py-20 { padding-top: var(--space-20); padding-bottom: var(--space-20); }

/* --------------------------------------------------------------------------
   SECTION UTILITIES
   -------------------------------------------------------------------------- */
.section {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
}

.section-dark {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4,
.section-dark h5,
.section-dark h6 {
    color: var(--color-white);
}

.section-linen {
    background-color: var(--color-accent);
}

.section-white {
    background-color: var(--color-white);
}

/* --------------------------------------------------------------------------
   BUTTON STYLES
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
}

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

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

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

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

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

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

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

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

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-xs);
}

/* --------------------------------------------------------------------------
   CARD STYLES
   -------------------------------------------------------------------------- */
.card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.card-image {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
}

.card-content {
    padding: var(--space-6);
}

.card-title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    margin-bottom: var(--space-2);
}

.card-text {
    color: var(--color-gray-600);
    font-size: var(--text-sm);
}

/* --------------------------------------------------------------------------
   DIVIDER & DECORATIVE ELEMENTS
   -------------------------------------------------------------------------- */
.divider {
    width: 60px;
    height: 3px;
    background-color: var(--color-secondary);
    margin: var(--space-4) 0;
}

.divider-center {
    margin-left: auto;
    margin-right: auto;
}

.gold-line {
    display: block;
    width: 40px;
    height: 2px;
    background-color: var(--color-secondary);
    margin-bottom: var(--space-4);
}

/* --------------------------------------------------------------------------
   RESPONSIVE UTILITIES
   -------------------------------------------------------------------------- */
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

/* Mobile First - Base styles are for mobile */
/* Tablet and up */
@media (min-width: 768px) {
    .md-hidden { display: none; }
    .md-block { display: block; }
    .md-flex { display: flex; }
    .md-grid-two { grid-template-columns: repeat(2, 1fr); }
    .md-grid-three { grid-template-columns: repeat(3, 1fr); }
    
    h1 { font-size: var(--text-5xl); }
    h2 { font-size: var(--text-4xl); }
    
    .section {
        padding-top: var(--space-20);
        padding-bottom: var(--space-20);
    }
    
    .container {
        padding-left: var(--space-6);
        padding-right: var(--space-6);
    }
}

/* Desktop and up */
@media (min-width: 1200px) {
    .lg-hidden { display: none; }
    .lg-block { display: block; }
    .lg-flex { display: flex; }
    .lg-grid-three { grid-template-columns: repeat(3, 1fr); }
    .lg-grid-four { grid-template-columns: repeat(4, 1fr); }
    
    h1 { font-size: var(--text-6xl); }
    
    .section {
        padding-top: var(--space-24);
        padding-bottom: var(--space-24);
    }
    
    .container {
        padding-left: var(--space-8);
        padding-right: var(--space-8);
    }
}

/* --------------------------------------------------------------------------
   ANIMATIONS
   -------------------------------------------------------------------------- */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.animate-fade-in { animation: fadeIn 0.5s ease forwards; }
.animate-fade-in-up { animation: fadeInUp 0.6s ease forwards; }
.animate-fade-in-down { animation: fadeInDown 0.6s ease forwards; }
.animate-slide-in-right { animation: slideInRight 0.5s ease forwards; }

/* Animation Delays */
.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }

/* --------------------------------------------------------------------------
   SCROLL MARGIN FOR ANCHORS
   -------------------------------------------------------------------------- */
[id] {
    scroll-margin-top: calc(var(--navbar-height) + var(--space-4));
}

/* --------------------------------------------------------------------------
   SELECTION STYLING
   -------------------------------------------------------------------------- */
::selection {
    background-color: var(--color-secondary);
    color: var(--color-primary);
}

/* --------------------------------------------------------------------------
   FOCUS STYLES (Accessibility)
   -------------------------------------------------------------------------- */
:focus-visible {
    outline: 2px solid var(--color-secondary);
    outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   MAIN CONTENT WRAPPER
   -------------------------------------------------------------------------- */
.main-content {
    padding-top: var(--navbar-height-mobile);
}

@media (min-width: 768px) {
    .main-content {
        padding-top: var(--navbar-height);
    }
}