/* ==========================================================================
   Design System & Tokens
   ========================================================================== */
:root {
    /* Color Palette - Premium Split Theme */
    --bg-dark-teal: #16363B;
    --bg-pale-peach: #F2CCB9;
    --text-pale-peach: #F2CCB9;
    --text-light-teal: #8DB7BA;
    --text-white: #FFFFFF;
    --text-dark-teal: #16363B;
    
    /* Typography */
    --font-display: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 2rem;
    --space-xl: 4rem;
    --space-2xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
    background-color: var(--bg-dark-teal);
    color: var(--text-white);
    font-family: var(--font-body);
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
    opacity: 1;
    transition: opacity 0.3s ease-in-out;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.fade-out {
    opacity: 0;
}

#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
}

body.project-theme {
    background-color: var(--bg-pale-peach);
    color: var(--text-dark-teal);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    line-height: 1.1;
    font-weight: 800;
}

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

img {
    display: block;
    max-width: 100%;
}

::selection {
    background: var(--text-pale-peach);
    color: var(--bg-dark-teal);
}

body.project-theme ::selection {
    background: var(--bg-dark-teal);
    color: var(--text-pale-peach);
}

/* ==========================================================================
   Scroll-Triggered Reveal Animations
   ========================================================================== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ==========================================================================
   Home Page Layout (Split Screen Typography)
   ========================================================================== */
.home-layout {
    display: flex;
    min-height: 100vh;
    padding: var(--space-xl) 5%;
    position: relative;
    z-index: 1;
}

/* Left Sidebar */
.home-sidebar {
    flex: 0 0 32%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding-right: var(--space-xl);
    min-height: 100vh;
    padding-top: var(--space-lg);
    padding-bottom: var(--space-lg);
}

.sidebar-brand {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: var(--space-xl);
    color: var(--text-pale-peach);
}

.sidebar-bio {
    font-size: 0.88rem;
    color: var(--text-white);
    opacity: 0.75;
    max-width: 380px;
    margin-bottom: var(--space-2xl);
    line-height: 1.65;
    font-weight: 300;
}

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

.sidebar-contact h3 {
    font-size: 1.3rem;
    color: var(--text-pale-peach);
    margin-bottom: var(--space-sm);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.sidebar-contact p {
    font-size: 0.85rem;
    color: var(--text-white);
    opacity: 0.7;
    margin-bottom: 0.2rem;
}

.sidebar-contact a {
    display: inline-block;
    margin-bottom: var(--space-md);
    font-weight: 600;
    font-size: 0.85rem;
    opacity: 0.9;
    border-bottom: 1px solid rgba(255,255,255,0.2);
    padding-bottom: 2px;
    transition: border-color var(--transition-fast), opacity var(--transition-fast);
}

.sidebar-contact a:hover {
    border-color: var(--text-pale-peach);
    opacity: 1;
}

.sidebar-footer {
    font-size: 0.75rem;
    opacity: 0.4;
    margin-top: var(--space-xl);
    font-weight: 300;
    letter-spacing: 0.5px;
}

/* Right Main Content */
.home-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0;
    padding-left: var(--space-lg);
}

.project-nav-item {
    display: block;
    position: relative;
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.project-nav-item:first-child {
    border-top: 1px solid rgba(255,255,255,0.06);
}

.project-nav-item h2 {
    font-size: clamp(2.8rem, 6.5vw, 7rem);
    color: var(--text-pale-peach);
    text-transform: uppercase;
    transition: color var(--transition-medium),
                text-decoration-color var(--transition-medium),
                letter-spacing var(--transition-medium);
    line-height: 0.95;
    text-decoration: underline;
    text-decoration-color: transparent;
    text-decoration-thickness: 3px;
    text-underline-offset: 0.12em;
    letter-spacing: -1px;
}

.project-nav-item:hover h2 {
    color: var(--text-light-teal);
    text-decoration-color: var(--text-light-teal);
    letter-spacing: 0px;
}

.project-subtitle {
    font-family: var(--font-body);
    font-size: 0.8rem;
    color: var(--text-white);
    opacity: 0.5;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-top: 0.6rem;
    display: block;
    font-weight: 400;
    transition: opacity var(--transition-medium);
}

.project-nav-item:hover .project-subtitle {
    opacity: 0.8;
}

/* Project Number */
.project-nav-item .project-num {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 300;
    color: var(--text-white);
    opacity: 0.25;
    letter-spacing: 2px;
    transition: opacity var(--transition-medium);
}

.project-nav-item:hover .project-num {
    opacity: 0.6;
}

/* Hover Image Preview */
.project-preview {
    position: fixed;
    width: 320px;
    height: 220px;
    border-radius: 12px;
    overflow: hidden;
    pointer-events: none;
    z-index: 50;
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.3s ease, transform 0.3s ease;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.project-preview.active {
    opacity: 1;
    transform: scale(1);
}

.project-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ==========================================================================
   Project Page Layout
   ========================================================================== */
.project-header {
    padding: var(--space-lg) 5%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 10;
}

.project-brand {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--text-white);
    text-transform: uppercase;
    opacity: 0.9;
    transition: opacity var(--transition-fast);
}

.project-brand:hover {
    opacity: 1;
}

.back-arrow {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-white);
    opacity: 0.7;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: opacity var(--transition-fast), gap var(--transition-fast);
}

.back-arrow:hover {
    opacity: 1;
    gap: 0.75rem;
}

.back-arrow svg {
    width: 18px;
    height: 18px;
}

.hero-image-container {
    width: 100%;
    height: 75vh;
    position: relative;
    overflow: hidden;
    background-color: var(--bg-dark-teal);
    z-index: 1;
}

.hero-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.7;
    transition: transform 8s ease;
}

/* Slow zoom on load */
.hero-image-container img.loaded {
    transform: scale(1.05);
}

/* Gradient overlay for readability */
.hero-image-container::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 40%;
    background: linear-gradient(to top, rgba(22,54,59,0.6), transparent);
    pointer-events: none;
}

/* Centered Logo in Hero */
.hero-logo-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--text-white);
    z-index: 2;
}

.hero-logo-center svg, .hero-logo-center img {
    max-width: 280px;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.hero-logo-center h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    letter-spacing: -3px;
    text-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

.hero-subtitle-tag {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-top: var(--space-md);
    opacity: 0.7;
}

/* ==========================================================================
   Project Hero Layout (3-Column Overlap Style)
   ========================================================================== */
.project-hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 0.8fr;
    gap: 2rem;
    padding: calc(var(--space-2xl) + 2rem) 5% var(--space-xl);
    min-height: 85vh;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-left-col {
    grid-column: 1 / 3;
    grid-row: 1;
    z-index: 2; /* Overlaps image */
    pointer-events: none;
}

.hero-left-col > * {
    pointer-events: auto;
}

.hero-subtitle {
    display: block;
    font-family: var(--font-body);
    font-size: 1.2rem;
    font-weight: 300;
    margin-bottom: var(--space-sm);
    opacity: 0.8;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(4rem, 8vw, 8rem);
    line-height: 0.85;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -2px;
    margin-bottom: var(--space-lg);
    text-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.hero-intro {
    font-size: 1.1rem;
    line-height: 1.6;
    opacity: 0.8;
    max-width: 450px;
    font-weight: 300;
}

.hero-image-col {
    grid-column: 2 / 4;
    grid-row: 1;
    z-index: 1;
    height: 70vh;
    border-radius: 20px 20px 250px 250px; /* Modern u-shape crop */
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

.hero-image-col img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-right-col {
    grid-column: 4 / 5;
    grid-row: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    align-items: flex-end;
    padding-left: var(--space-lg);
}

.hero-stat-item {
    text-align: right;
}

.hero-stat-num {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 0.4rem;
}

.hero-stat-label {
    font-size: 0.75rem;
    font-family: var(--font-body);
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.6;
    font-weight: 600;
}

.project-content {
    padding: var(--space-2xl) 5%;
    position: relative;
    z-index: 1;
}

/* Divider line */
.section-divider {
    width: 60px;
    height: 3px;
    background: var(--text-dark-teal);
    border: none;
    margin: 0 0 var(--space-xl) 0;
    opacity: 0.3;
}

.overview-grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.overview-text h2 {
    font-size: clamp(2.5rem, 4.5vw, 4.5rem);
    margin-bottom: var(--space-lg);
    color: var(--text-dark-teal);
    letter-spacing: -1px;
}

.overview-text p {
    font-size: 1.05rem;
    margin-bottom: var(--space-lg);
    opacity: 0.75;
    line-height: 1.8;
    font-weight: 300;
}

.overview-meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    padding-top: var(--space-xl);
    border-left: 1px solid rgba(22,54,59,0.12);
    padding-left: var(--space-xl);
}

.meta-item h4 {
    font-family: var(--font-display);
    font-size: 0.8rem;
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 800;
    opacity: 0.9;
}

.meta-item p {
    font-size: 0.92rem;
    opacity: 0.65;
    line-height: 1.7;
    font-weight: 300;
}

/* Brand Board */
.brand-board {
    margin-top: var(--space-xl);
}

.brand-board h2 {
    font-size: clamp(2.5rem, 4.5vw, 4.5rem);
    margin-bottom: var(--space-xl);
    letter-spacing: -1px;
}

.brand-board-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.board-item {
    background: rgba(22,54,59,0.06);
    aspect-ratio: 4/3;
    border-radius: 6px;
    overflow: hidden;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.board-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.1);
}

/* ==========================================================================
   Project Footer / Back Navigation
   ========================================================================== */
.project-footer {
    padding: var(--space-2xl) 5% var(--space-xl);
    border-top: 1px solid rgba(22,54,59,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1;
}

.project-footer-back {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    opacity: 0.6;
    transition: opacity var(--transition-fast), gap var(--transition-fast);
}

.project-footer-back:hover {
    opacity: 1;
    gap: 1rem;
}

.project-footer-next {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    text-transform: uppercase;
    letter-spacing: -0.5px;
    text-align: right;
    transition: color var(--transition-fast);
}

.project-footer-next span {
    display: block;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 3px;
    opacity: 0.5;
    margin-bottom: 0.5rem;
}

body.project-theme .project-footer-next:hover {
    color: var(--text-light-teal);
}

/* ==========================================================================
   Footer (Homepage)
   ========================================================================== */
/* None needed — the sidebar handles the homepage contact/footer region */

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 992px) {
    .home-layout {
        flex-direction: column;
        padding: var(--space-lg) 5%;
    }
    
    .home-sidebar {
        flex: none;
        min-height: auto;
        margin-bottom: var(--space-xl);
        padding-right: 0;
    }
    
    .home-main {
        padding-left: 0;
    }
    
    .overview-grid {
        grid-template-columns: 1fr;
    }
    
    .overview-meta {
        padding-top: var(--space-lg);
        border-left: none;
        padding-left: 0;
        border-top: 1px solid rgba(22,54,59,0.12);
        padding-top: var(--space-xl);
    }
    
    .project-footer {
        flex-direction: column;
        gap: var(--space-lg);
        align-items: flex-start;
    }
    
    .project-footer-next {
        text-align: left;
    }
    
    .project-preview {
        display: none;
    }
    
    .project-nav-item .project-num {
        display: none;
    }
    
    .project-hero-grid {
        grid-template-columns: 1fr 1fr 1fr;
    }
    .hero-left-col { grid-column: 1 / 3; }
    .hero-image-col { grid-column: 2 / 4; }
    .hero-right-col { 
        grid-column: 1 / -1; 
        grid-row: 2;
        flex-direction: row;
        justify-content: center;
        align-items: center;
        flex-wrap: wrap;
        padding-left: 0;
        margin-top: var(--space-lg);
    }
    .hero-stat-item { text-align: center; }
}

@media (max-width: 600px) {
    .hero-image-container {
        height: 50vh;
    }
    
    .hero-logo-center h1 {
        font-size: 2.5rem;
        letter-spacing: -1px;
    }
    
    .brand-board-grid {
        grid-template-columns: 1fr;
    }
    
    .project-hero-grid {
        grid-template-columns: 1fr;
        padding-top: calc(var(--space-2xl) + 4rem);
        gap: 3rem;
    }
    .hero-left-col { 
        grid-column: 1 / -1; 
        grid-row: 1;
    }
    .hero-title {
        font-size: clamp(3.5rem, 12vw, 5rem);
    }
    .hero-image-col {
        grid-column: 1 / -1;
        grid-row: 2;
        height: 50vh;
        border-radius: 20px 20px 100px 100px;
    }
    .hero-right-col {
        grid-column: 1 / -1;
        grid-row: 3;
    }
}