/* ══════════════════════════════════════════════════════════════════════
   PROJECT DETAIL PAGES STYLESHEET (project1-4.html)
   Swiss Minimalistic Design
   ══════════════════════════════════════════════════════════════════════ */

   :root {
    --black: #000;
    --white: #fff;
    --beige: #d4c5b0;
    --gray: #666;
        } 
/* ── Reset & Base ── */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
   font-family: 'IBM Plex Sans', sans-serif;
    background: var(--black);
    color: var(--white);
    line-height: 1.5;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Navigation */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 5%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(212, 197, 176, 0.2);
    z-index: 1000;
}

.nav-logo {
    font-family: 'Libre Baskerville', serif;
    font-size: 1.2rem;
    color: var(--beige);
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-logo:hover {
    color: var(--white);
}

.nav-links {
    display: flex;
    gap: 3rem;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--beige);
    transition: width 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--white);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* ── Containers ── */
.project-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 40px;
}

.project-container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 40px;
}

.project-container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* ── Hero Layouts ── */

/* Split Hero (Project 1) */
.project-hero-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    padding: 120px 40px 80px;
    max-width: 1400px;
    margin: 0 auto;
    align-items: center;
}

.project-meta {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #999;
    margin-bottom: 16px;
}

.project-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.project-intro {
    font-size: 18px;
    line-height: 1.6;
    color: var(--beige);
    margin-bottom: 32px;
}

.project-tags {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.tag {
    padding: 8px 16px;
    color: var(--beige);
    border-radius: 2px;
    font-size: 13px;
    font-weight: 500;
}

/* Full Hero (Project 2) */
.project-hero-full {
    padding-top: 100px;
}

.project-hero-full-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 80px 40px;
    text-align: center;
}

.project-title-large {
    font-size: 64px;
    font-weight: 700;
    line-height: 1.05;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
}

.project-intro-large {
    font-size: 20px;
    line-height: 1.5;
    color: #ffffff;
    max-width: 700px;
    margin: 0 auto;
}

/* Minimal Hero (Project 3) */
.project-hero-minimal {
    padding: 140px 40px 80px;
    max-width: 1100px;
    margin: 0 auto;
}

.project-title-xl {
    font-size: 72px;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 32px;
    letter-spacing: -0.03em;
}

.project-intro-xl {
    font-size: 22px;
    line-height: 1.5;
    color: var(--beige);
    max-width: 800px;
}

/* Narrative Hero (Project 4) */
.project-hero-narrative {
    padding: 140px 40px 60px;
    text-align: center;
}

.project-title-narrative {
    font-size: 80px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.03em;
}

/* ── Sections ── */
.project-section {
    padding: 80px 0;
}

.project-bg-light {
    background: #fafafa;
    color: black;
}

.project-bg-dark {
    background: #111;
    color: #ffffff;
}

.section-heading {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 48px;
    text-align: center;
    letter-spacing: -0.02em;
}

/* ── Grids ── */
.project-grid-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.project-grid-3col {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.project-grid-4col {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

/* ── Process Steps ── */
.process-step {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 80px;
    align-items: center;
}

.process-step-reverse {
    direction: rtl;
}

.process-step-reverse > * {
    direction: ltr;
}

.process-content h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.process-content p {
    font-size: 16px;
    line-height: 1.7;
    color: #555;
    margin-bottom: 16px;
}

.process-content ul {
    margin: 16px 0;
    padding-left: 20px;
}

.process-content li {
    margin-bottom: 8px;
    line-height: 1.6;
    color: #555;
}

/* ── Timeline (Project 2) ── */
.timeline-vertical {
    position: relative;
    padding-left: 80px;
}

.timeline-vertical::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: #ddd;
}

.timeline-item {
    position: relative;
    margin-bottom: 80px;
}

.timeline-marker {
    position: absolute;
    left: -80px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #000;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
}

.timeline-content-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.timeline-content h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.timeline-content p {
    font-size: 16px;
    line-height: 1.7;
    color: #555;
    margin-bottom: 16px;
}

/* ── Visual Elements ── */
.image-placeholder {
    width: 100%;
    height: 100%;
    min-height: 300px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    border-radius: 2px;
}

.full-width-image {
    margin: 40px 0;
}

.visual-caption {
    margin-top: 12px;
    font-size: 13px;
    color: #999;
    text-align: center;
}

/* ── Masonry Grid (Project 3) ── */
.masonry-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    grid-auto-rows: 240px;
}

.masonry-item {
    overflow: hidden;
    border-radius: 2px;
}

.masonry-tall {
    grid-row: span 2;
}

/* ── Dual Layout (Project 4) ── */
.dual-image-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.full-width-visual {
    width: 100%;
    margin: 60px 0;
}

/* ── Design System (Project 3) ── */
.system-section {
    margin-bottom: 60px;
}

.system-section h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 32px;
    letter-spacing: -0.01em;
}

.color-palette-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
}

.color-swatch {
    aspect-ratio: auto;
    border-radius: 2px;
    display: flex;
    align-items: flex-end;
    padding: 16px;
}

.color-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.color-name {
    font-weight: 600;
    font-size: 13px;
}

.color-hex {
    font-size: 11px;
    font-family: 'Courier New', monospace;
    opacity: 0.8;
}

.typography-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.type-sample {
    padding: 32px;
    background: #fafafa;
    border-radius: 2px;
}

.type-sample p {
    margin: 8px 0;
    line-height: 1.4;
}

/* ── Content Blocks ── */
.lead-text {
    font-size: 20px;
    line-height: 1.7;
    color: #555;
    margin-bottom: 32px;
}

.lead-text-xl {
    font-size: 28px;
    line-height: 1.5;
    color: #333;
    font-weight: 400;
}

.project-overview-centered {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.project-overview-centered h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.project-outcome-centered {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.project-outcome-centered h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.project-outcome-text {
    max-width: 800px;
    margin: 40px auto 0;
}

.project-outcome-text p {
    font-size: 18px;
    line-height: 1.7;
    color: #555;
    margin-bottom: 20px;
}

/* ── Stats ── */
.stat-card {
    text-align: center;
    padding: 40px 20px;
    background: #fff;
    border: 1px solid #e5e5e5;
    border-radius: 2px;
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: #999;
}

.project-stats-inline {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 40px;
}

.stat-inline {
    text-align: center;
}

.stat-inline h3 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 8px;
}

.stat-inline p {
    font-size: 13px;
    color: #999;
}

/* ── Technical Cards ── */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.tech-card {
    padding: 32px;
    background: #fafafa;
    border-radius: 2px;
}

.tech-card h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.tech-card p {
    font-size: 15px;
    line-height: 1.6;
    color: #555;
    margin-bottom: 12px;
}

.tech-card strong {
    font-weight: 600;
}

.tech-architecture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.tech-layer {
    padding: 32px;
    background: rgba(255,255,255,0.05);
    border-radius: 2px;
}

.tech-layer h4 {
    margin-bottom: 12px;
    color: #fff;
}

.tech-layer p {
    color: #ccc;
}

.code-stats {
    display: flex;
    justify-content: center;
    gap: 80px;
    margin-top: 60px;
}

.code-stat {
    text-align: center;
}

.code-stat h3 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #fff;
}

.code-stat p {
    font-size: 13px;
    color: #ccc;
}

/* ── Process Cards ── */
.process-cards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.process-card {
    padding: 32px 24px;
    background: #fafafa;
    border-radius: 2px;
}

.process-number {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
}

.process-card h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.process-card p {
    font-size: 14px;
    line-height: 1.6;
    color: #666;
}

/* ── Challenge/Solution Layout ── */
.challenge-solution-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.challenge-col h2,
.solution-col h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.01em;
}

.challenge-col p,
.solution-col p {
    font-size: 16px;
    line-height: 1.7;
    color: #555;
    margin-bottom: 16px;
}

.challenge-col ul,
.solution-col ul {
    margin: 16px 0;
    padding-left: 20px;
}

.challenge-col li,
.solution-col li {
    margin-bottom: 8px;
    line-height: 1.6;
    color: #555;
}

/* ── Narrative Sections ── */
.narrative-section {
    margin-bottom: 60px;
}

.narrative-section h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.01em;
}

.narrative-section p {
    font-size: 17px;
    line-height: 1.7;
    color: #555;
    margin-bottom: 20px;
}

/* ── Quotes ── */
.testimonial {
    margin-top: 48px;
    padding: 40px;
    background: #fafafa;
    border-radius: 2px;
    text-align: center;
}

.testimonial-text {
    font-size: 20px;
    line-height: 1.6;
    font-style: italic;
    color: #333;
    margin-bottom: 16px;
}

.testimonial-author {
    font-size: 13px;
    font-weight: 600;
    color: #999;
}

.quote-block {
    margin: 40px 0;
    padding: 32px;
    border-left: 3px solid #000;
    background: #fafafa;
}

.quote-text {
    font-size: 20px;
    line-height: 1.6;
    font-style: italic;
    color: #333;
    margin-bottom: 16px;
}

.quote-attribution {
    font-size: 13px;
    font-weight: 600;
    color: #999;
}

.impact-metrics {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 48px;
}

.metric-item {
    text-align: center;
}

.metric-item h3 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 8px;
}

.metric-item p {
    font-size: 13px;
    color: #999;
}

/* ── Footer Navigation ── */
.project-nav-footer {
    display: flex;
    justify-content: space-between;
    padding: 60px 0;
}

.btn-primary,
.btn-secondary {
    padding: 16px 32px;
    border-radius: 2px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s;
    display: inline-block;
}

.btn-primary {
    background: #000;
    color: #fff;
}

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

.btn-secondary {
    background: #f5f5f5;
    color: #000;
}

.btn-secondary:hover {
    background: #e5e5e5;
}

/* ── Footer ── */
.footer {
    padding: 60px 40px;
    border-top: 1px solid #e5e5e5;
    text-align: center;
}

.footer p {
    font-size: 13px;
    color: #999;
}

/* ── Responsive ── */

@media (max-width: 1024px) {
    .project-hero-split,
    .process-step,
    .timeline-content-wrapper,
    .project-grid-2col,
    .dual-image-layout,
    .challenge-solution-layout,
    .typography-showcase {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .process-step-reverse {
        direction: ltr;
    }

    .project-grid-3col,
    .masonry-grid,
    .tech-grid,
    .tech-architecture-grid,
    .process-cards-grid {
        grid-template-columns: 1fr;
    }

    .project-grid-4col,
    .color-palette-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .project-title-large {
        font-size: 48px;
    }

    .project-title-xl {
        font-size: 54px;
    }

    .project-title-narrative {
        font-size: 54px;
    }

    .timeline-vertical {
        padding-left: 0;
    }

    .timeline-vertical::before {
        display: none;
    }

    .timeline-marker {
        position: static;
        margin-bottom: 20px;
    }

    .code-stats,
    .project-stats-inline,
    .impact-metrics {
        flex-direction: column;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .nav {
        padding: 20px 24px;
    }

    .nav-menu {
        gap: 20px;
        font-size: 13px;
    }

    .project-container,
    .project-container-narrow,
    .project-container-wide {
        padding: 0 24px;
    }

    .project-section {
        padding: 60px 0;
    }

    .project-hero-split {
        padding: 100px 24px 60px;
    }

    .project-hero-minimal {
        padding: 120px 24px 60px;
    }

    .project-hero-narrative {
        padding: 120px 24px 60px;
    }

    .project-title {
        font-size: 36px;
    }

    .project-title-large {
        font-size: 36px;
    }

    .project-title-xl {
        font-size: 40px;
    }

    .project-title-narrative {
        font-size: 40px;
    }

    .lead-text-xl {
        font-size: 20px;
    }

    .section-heading {
        font-size: 28px;
        margin-bottom: 32px;
    }

    .project-grid-4col,
    .color-palette-grid {
        grid-template-columns: 1fr;
    }

    .project-nav-footer {
        flex-direction: column;
        gap: 16px;
        padding: 40px 0;
    }

    .btn-primary,
    .btn-secondary {
        text-align: center;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .project-intro {
        font-size: 16px;
    }

    .project-intro-large,
    .project-intro-xl {
        font-size: 18px;
    }

    .project-tags {
        gap: 8px;
    }

    .tag {
        font-size: 12px;
        padding: 6px 12px;
    }
}