/* 
* Project: Modern Fashion Aesthetic Platform
* Design Style: Minimalist, Modern, High-end
* Color Palette: Neutral tones (Ivory, Light Gray, Oat) with Morandi accents
*/

:root {
    /* Color System */
    --bg-color: #FDFBF7; /* Ivory White */
    --text-primary: #333333;
    --text-secondary: #666666;
    --accent-color: #000000;
    --bg-secondary: #F5F5F5;
    --color-oat: #E0D6C8;
    --color-blue-haze: #A3B4C8;
    --color-dusty-pink: #D8C4C4;
    
    /* Typography */
    --font-main: 'Helvetica Neue', 'Helvetica', 'Arial', 'Noto Sans SC', 'Source Han Sans CN', sans-serif;
    --line-height-base: 1.8;
    --line-height-heading: 1.4;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 32px;
    --spacing-lg: 64px;
    --spacing-xl: 120px;
    
    /* Transitions */
    --transition-slow: 0.8s ease-in-out;
    --transition-base: 0.3s ease;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: var(--line-height-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    opacity: 0;
    animation: pageFadeIn 1s ease-out forwards;
}

@keyframes pageFadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

img {
    display: block;
    max-width: 100%;
    height: auto;
    object-fit: cover;
}

/* Typography */
h1, h2, h3 {
    font-weight: 300;
    line-height: var(--line-height-heading);
    letter-spacing: 0.05em;
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; margin-bottom: var(--spacing-md); }
h2 { font-size: 2rem; margin-bottom: var(--spacing-sm); }
h3 { font-size: 1.5rem; margin-bottom: var(--spacing-xs); }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-weight: 300;
}

.text-center { text-align: center; }
.text-justify { text-align: justify; }

/* Layout Containers */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
}

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

/* Header (Minimalist) */
header {
    padding: var(--spacing-md) 0;
    text-align: center;
    position: absolute;
    top: 0;
    width: 100%;
    z-index: 10;
    background: transparent;
}

header h1 {
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin: 0;
    opacity: 0.9;
}

/* ================= PAGE 1: INDEX ================= */

/* Hero Section (Carousel) */
.hero {
    height: 100vh;
    width: 100%;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
    background-size: cover;
    background-position: center;
}

.hero-slide.active {
    opacity: 1;
}

.hero-text {
    position: absolute;
    z-index: 2;
    color: #fff;
    text-align: center;
    text-shadow: 0 2px 10px rgba(0,0,0,0.1);
    bottom: 15%;
    width: 100%;
}

.hero-text p {
    font-size: 1.2rem;
    letter-spacing: 0.1em;
    color: #fff;
    font-weight: 300;
}

/* Philosophy Section */
.philosophy {
    background-color: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 40vh;
    text-align: center;
}

.philosophy-content {
    max-width: 600px;
}

.philosophy h2 {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
    color: var(--accent-color);
}

.philosophy p {
    font-size: 1.1rem;
    line-height: 2;
}

/* Visual Navigation Area */
.visual-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    height: 60vh;
    width: 100%;
}

.nav-tile {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-tile img {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    filter: brightness(0.9);
}

.nav-tile:hover img {
    transform: scale(1.05);
    filter: brightness(0.7);
}

.nav-tile-text {
    position: relative;
    z-index: 2;
    color: #fff;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.3);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(0,0,0,0.2);
    backdrop-filter: blur(2px);
    transition: all 0.3s ease;
}

.nav-tile:hover .nav-tile-text {
    background: rgba(0,0,0,0.4);
    border-color: rgba(255,255,255,0.8);
}

.nav-tile-text span {
    display: block;
    font-size: 1.2rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

/* ================= PAGE 2: DESIGN ================= */

/* Design Concept */
.concept-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.concept-text {
    padding: var(--spacing-md);
}

.concept-image img {
    width: 100%;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

/* Details Grid */
.details-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.grid-item {
    position: relative;
    aspect-ratio: 1/1;
    overflow: hidden;
}

.grid-item img {
    width: 100%;
    height: 100%;
    transition: transform var(--transition-base);
}

.grid-item:hover img {
    transform: scale(1.03);
}

.grid-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.9);
    padding: var(--spacing-sm);
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-base);
}

.grid-item:hover .grid-caption {
    opacity: 1;
    transform: translateY(0);
}

.grid-caption span {
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    color: var(--text-primary);
}

/* ================= PAGE 3: SEASONAL ================= */

/* Seasonal Intro */
.seasonal-intro {
    max-width: 800px;
    margin: 100px auto var(--spacing-lg);
    text-align: center;
}

/* Seasonal Visuals */
.season-block {
    margin-bottom: var(--spacing-xl);
    padding: 0 var(--spacing-md);
}

.season-header {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.season-header h3 {
    font-size: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-blue-haze); /* Subtle hint */
}
.season-block:nth-child(even) .season-header h3 {
     color: var(--color-dusty-pink);
}

.season-gallery {
    display: grid;
    grid-template-columns: 2fr 1fr;
    grid-template-rows: repeat(2, 1fr);
    gap: var(--spacing-sm);
    height: 80vh;
}

.season-main-img {
    grid-row: 1 / -1;
    grid-column: 1 / 2;
    height: 100%;
    position: relative;
}

.season-sub-img {
    height: 100%;
    overflow: hidden;
}

.season-main-img img, .season-sub-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.season-mood {
    position: absolute;
    bottom: var(--spacing-md);
    left: var(--spacing-md);
    background: rgba(255,255,255,0.85);
    padding: var(--spacing-sm) var(--spacing-md);
    font-style: italic;
    color: var(--text-primary);
    max-width: 80%;
}

/* ================= SHARED COMPONENTS ================= */

/* Page Navigation (Bottom) */
.page-nav {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid rgba(0,0,0,0.05);
    margin-top: var(--spacing-xl);
}

.nav-link-simple {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding-bottom: 2px;
    border-bottom: 1px solid transparent;
}

.nav-link-simple:hover {
    border-color: var(--text-primary);
}

/* Footer */
footer {
    text-align: center;
    padding: var(--spacing-md) 0;
    font-size: 0.8rem;
    color: var(--text-secondary);
    border-top: 1px solid transparent; /* Minimal separation */
    margin-top: auto;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .season-gallery {
        height: auto;
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }
    
    .season-main-img {
        grid-row: auto;
        grid-column: auto;
        height: 50vh;
    }
    
    .season-sub-img {
        height: 30vh;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 60px;
        --spacing-lg: 32px;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    
    .visual-nav {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .nav-tile {
        height: 40vh;
    }

    .concept-section {
        grid-template-columns: 1fr;
    }
    
    .details-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-text {
        bottom: 20%;
        padding: 0 var(--spacing-sm);
    }
}

/* Utility: Fade Up Animation for scroll */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Custom Scrollbar for Webkit */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-color);
}
::-webkit-scrollbar-thumb {
    background: #ccc;
}
::-webkit-scrollbar-thumb:hover {
    background: #bbb;
}