/*
 * Luxury Editorial Design System
 * Based on high-end fashion magazines and luxury brand websites
 * 
 * Core Principles: Elegance through restraint, precision, and depth
 */

/* Import Fonts */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* ===== DESIGN TOKENS ===== */

:root {
    /* Colors */
    --color-background: #F9F8F6;
    --color-foreground: #1A1A1A;
    --color-muted-bg: #EBE5DE;
    --color-muted-fg: #6C6863;
    --color-accent: #D4AF37;
    --color-accent-fg: #FFFFFF;
    
    /* Typography */
    --font-heading: 'Playfair 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;
    
    /* Transitions */
    --transition-fast: 500ms;
    --transition-medium: 700ms;
    --transition-slow: 1500ms;
    --transition-ultra-slow: 2000ms;
    --ease-luxury: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ===== BASE STYLES ===== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-background);
    color: var(--color-foreground);
    line-height: 1.625;
    font-size: 1rem;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Ensure all text elements have visible colors */
body * {
    color: inherit;
}

/* Override specific problematic text colors */
h1, h2, h3, h4, h5, h6, p, span, div, li, a, button, label, input, textarea, select, td, th {
    color: var(--color-foreground) !important;
}

p, li, span, div {
    color: var(--color-muted-fg) !important;
}

a {
    color: var(--color-foreground) !important;
    text-decoration: underline;
}

a:hover {
    color: var(--color-accent) !important;
}

/* ===== TYPOGRAPHY ===== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--color-foreground);
}

h1 {
    font-size: clamp(3rem, 8vw, 8rem);
    line-height: 0.9;
}

h2 {
    font-size: clamp(2rem, 5vw, 4.5rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h4 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
}

p {
    color: var(--color-muted-fg);
    line-height: 1.625;
    margin-bottom: var(--spacing-md);
}

/* Labels and overlines */
.overline {
    font-family: var(--font-body);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--color-muted-fg);
    margin-bottom: var(--spacing-sm);
}

/* ===== BORDERS & RADIUS ===== */

* {
    border-radius: 0 !important;
}

.border-top {
    border-top: 1px solid var(--color-foreground);
}

.border-bottom {
    border-bottom: 1px solid var(--color-foreground);
}

.border-left {
    border-left: 1px solid var(--color-foreground);
}

.border-right {
    border-right: 1px solid var(--color-foreground);
}

.border-subtle {
    border-color: rgba(26, 26, 26, 0.1);
}

/* ===== BUTTONS ===== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 var(--spacing-lg);
    height: 3rem;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    text-decoration: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-fast) var(--ease-luxury);
    border: none;
}

.btn-primary {
    background-color: var(--color-foreground);
    color: var(--color-accent-fg);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-accent);
    transform: translateX(-100%);
    transition: transform var(--transition-fast) var(--ease-luxury);
    z-index: 1;
}

.btn-primary:hover::before {
    transform: translateX(0);
}

.btn-primary span {
    position: relative;
    z-index: 10;
}

.btn-primary:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

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

.btn-secondary:hover {
    background-color: var(--color-foreground);
    color: var(--color-accent-fg);
}

/* ===== CARDS ===== */

.card {
    background-color: transparent;
    border-top: 1px solid var(--color-foreground);
    padding: var(--spacing-lg);
    transition: all var(--transition-fast) var(--ease-luxury);
}

.card:hover {
    background-color: rgba(249, 248, 246, 0.5);
}

.card-featured {
    border-top-width: 4px;
    border-top-color: var(--color-accent);
}

/* ===== STEPS / HOW IT WORKS ===== */

.how-it-works {
    padding: var(--spacing-4xl) 0;
}

.how-it-works h2 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-2xl);
    text-align: center;
    color: var(--color-foreground);
}

.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

@media (min-width: 768px) {
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
        padding: 0 var(--spacing-xl);
    }
}

.step {
    background-color: transparent;
    border-top: 1px solid var(--color-foreground);
    padding: var(--spacing-lg);
    position: relative;
}

.step-featured {
    border-top-width: 4px;
    border-top-color: var(--color-accent);
}

.step-num {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 6vw, 4rem);
    font-weight: 300;
    color: var(--color-accent);
    display: block;
    margin-bottom: var(--spacing-md);
    line-height: 1;
}

.step h4 {
    font-family: var(--font-heading);
    font-size: clamp(1.25rem, 2vw, 1.5rem);
    margin-bottom: var(--spacing-sm);
    color: var(--color-foreground) !important;
}

.step p {
    font-family: var(--font-body);
    font-size: 0.9375rem;
    line-height: 1.625;
    color: var(--color-muted-fg) !important;
    margin: 0;
}

/* ===== INPUTS ===== */

input,
textarea,
select {
    font-family: var(--font-body);
    font-size: 0.875rem;
    background-color: transparent;
    border: none;
    border-bottom: 1px solid var(--color-foreground);
    padding: var(--spacing-xs) 0;
    height: 3rem;
    color: var(--color-foreground);
    transition: border-color var(--transition-fast) var(--ease-luxury);
    width: 100%;
}

input::placeholder,
textarea::placeholder {
    font-family: var(--font-heading);
    font-style: italic;
    color: var(--color-muted-fg);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-bottom-color: var(--color-accent);
}

/* ===== IMAGES ===== */

img {
    filter: grayscale(100%);
    transition: filter var(--transition-slow) var(--ease-luxury),
                transform var(--transition-slow) var(--ease-luxury),
                box-shadow var(--transition-slow) var(--ease-luxury);
}

img:hover {
    filter: grayscale(0%);
    transform: scale(1.05);
}

/* ===== GRID LINES ===== */

.grid-lines {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 100;
}

.grid-line {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    background-color: rgba(26, 26, 26, 0.1);
}

.grid-line:nth-child(1) { left: 8.33%; }
.grid-line:nth-child(2) { left: 33.33%; }
.grid-line:nth-child(3) { left: 66.66%; }
.grid-line:nth-child(4) { left: 91.66%; }

/* ===== NOISE TEXTURE ===== */

.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 50;
    opacity: 0.02;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* ===== CONTAINER ===== */

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

/* ===== SECTIONS ===== */

section {
    padding: var(--spacing-3xl) 0;
}

@media (min-width: 768px) {
    section {
        padding: var(--spacing-4xl) 0;
    }
}

/* ===== DECORATIVE ELEMENTS ===== */

.divider-line {
    width: 2rem;
    height: 1px;
    background-color: var(--color-foreground);
    margin: var(--spacing-md) 0;
}

@media (min-width: 768px) {
    .divider-line {
        width: 3rem;
    }
}

/* ===== VERTICAL TEXT ===== */

.vertical-text {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-family: var(--font-body);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.3em;
    color: var(--color-muted-fg);
    position: absolute;
    top: 0;
    bottom: 0;
    display: none;
}

@media (min-width: 1024px) {
    .vertical-text {
        display: block;
    }
}

.vertical-text-left {
    left: 0;
}

.vertical-text-right {
    right: 0;
}

/* ===== DROP CAP ===== */

.drop-cap::first-letter {
    float: left;
    font-family: var(--font-heading);
    font-size: 4.5rem;
    line-height: 0.8;
    margin-right: var(--spacing-sm);
    color: var(--color-foreground);
}

/* ===== DARK SECTIONS ===== */

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

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

.dark-section p {
    color: rgba(235, 229, 222, 0.7);
}

.dark-section .overline {
    color: rgba(235, 229, 222, 0.5);
}

/* ===== 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: 1px solid var(--color-foreground);
    outline-offset: 2px;
}

/* ===== UTILITY CLASSES ===== */

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

.bg-gold {
    background-color: var(--color-accent);
}

.bg-muted {
    background-color: var(--color-muted-bg);
}

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

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

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

.uppercase {
    text-transform: uppercase;
}

.tracking-wide {
    letter-spacing: 0.2em;
}

.tracking-wider {
    letter-spacing: 0.3em;
}

/* ===== RESPONSIVE TYPOGRAPHY ===== */

@media (max-width: 767px) {
    h1 { font-size: 3rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.25rem; }
    
    section {
        padding: var(--spacing-2xl) 0;
    }
    
    .btn {
        height: 2.5rem;
        padding: 0 var(--spacing-md);
    }
}