/* ====== PROJECT PAGES - PREMIUM v7.1 ====== */
/* Matching the main portfolio design system */

/* ====== PAGE-SPECIFIC OVERRIDES ====== */
:root {
    --container: 900px;
}

/* Shared utilities (.sr-only, @font-face) now live in variables.css */

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-primary);
    background: var(--bg-deep);
    min-height: 100vh;
}

::selection {
    background: var(--accent);
    color: var(--bg-deep);
}

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

/* ====== AMBIENT BACKGROUND ====== */
.ambient-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    background: var(--bg-deep);
    overflow: hidden;
}

.ambient-bg::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    top: -200px;
    left: -200px;
    filter: blur(100px);
    opacity: 0.6;
}

.ambient-bg::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(196, 144, 112, 0.06) 0%, transparent 70%);
    bottom: -100px;
    right: -100px;
    filter: blur(100px);
    opacity: 0.6;
}

[data-theme="light"] .ambient-bg::after {
    background: radial-gradient(circle, rgba(122, 86, 54, 0.05) 0%, transparent 70%);
}

/* ====== NAVIGATION ====== */
.project-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    display: flex;
    align-items: center;
}

.project-nav-container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    transition: color var(--duration-micro) var(--ease-smooth),
                border-color var(--duration-micro) var(--ease-smooth),
                background var(--duration-micro) var(--ease-smooth),
                transform var(--duration-micro) var(--ease-smooth);
}

.back-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-subtle);
}

.back-btn i {
    transition: transform var(--duration-micro) var(--ease-smooth);
}

/* back-btn:hover i transform in @media (hover: hover) below */

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.logo-mark {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dim) 100%);
    color: var(--bg-deep);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
}

[data-theme="light"] .logo-mark {
    color: #ffffff;
}

.logo-accent {
    color: var(--accent);
}

/* ====== HERO ====== */
.project-hero {
    padding: calc(var(--nav-height) + var(--space-2xl)) 0 var(--space-2xl);
    text-align: center;
    position: relative;
}

.project-hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.project-hero-container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.project-category {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
    background: var(--accent-subtle);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
}

.project-category i {
    font-size: 1rem;
}

.project-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 50%, var(--text-primary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% auto;
}

.project-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto var(--space-xl);
    line-height: 1.8;
}

/* Tech Stack */
.tech-stack {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.tech-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0.6rem 1.2rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: border-color var(--duration-micro) var(--ease-smooth),
                color var(--duration-micro) var(--ease-smooth);
}

.tech-tag:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.tech-tag i {
    color: var(--accent);
}

/* ====== CONTENT ====== */
.project-content {
    max-width: var(--container);
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md) var(--space-2xl);
}

/* Sections */
.content-section {
    margin-bottom: var(--space-2xl);
}

/* Spacing utilities — replaces inline style="" attributes */
.content-section .highlight-box ~ .highlight-box,
.content-section .content-list + .highlight-box,
.content-section .overview-card + .highlight-box,
.content-section .achievement-grid + .highlight-box,
.content-section .table-container + .highlight-box {
    margin-top: var(--space-lg);
}

.content-section .subsection-heading {
    margin-top: var(--space-lg);
    margin-bottom: var(--space-sm);
}

.gallery-note {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: var(--space-md);
}

.section-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--border);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.section-title i {
    color: var(--accent);
    font-size: 1.25rem;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.feature-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: transform var(--duration-standard) var(--ease-smooth),
                border-color var(--duration-standard) var(--ease-smooth),
                box-shadow var(--duration-standard) var(--ease-smooth);
}

.feature-card:hover {
    border-color: var(--accent);
}

.feature-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-subtle);
    color: var(--accent);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    font-size: 1.25rem;
    border: 1px solid var(--border);
    transition: background var(--duration-standard) var(--ease-smooth),
                color var(--duration-standard) var(--ease-smooth),
                border-color var(--duration-standard) var(--ease-smooth);
}

.feature-card:hover .feature-icon {
    background: var(--accent);
    color: var(--bg-deep);
    border-color: var(--accent);
}

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
}

.feature-card p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* Lists */
.content-list {
    list-style: none;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.content-list li {
    position: relative;
    padding: var(--space-sm) 0 var(--space-sm) 2rem;
    color: var(--text-secondary);
    line-height: 1.7;
    border-bottom: 1px dashed var(--border);
}

.content-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.content-list li:first-child {
    padding-top: 0;
}

.content-list li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
    font-size: 1.25rem;
}

/* Tables */
.table-container {
    overflow-x: auto;
    margin-bottom: var(--space-lg);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table th,
.data-table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.data-table th {
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg-primary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.data-table td {
    color: var(--text-secondary);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover td {
    background: var(--accent-subtle);
}

/* ====== CTA SECTION ====== */
.project-cta {
    text-align: center;
    padding: var(--space-2xl) 0;
    border-top: 1px solid var(--border);
    margin-top: var(--space-xl);
}

.cta-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: var(--space-lg);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

/* .btn base is in variables.css */

.btn-primary {
    background: var(--accent);
    color: var(--bg-deep);
}

.btn-primary:hover {
    background: var(--accent-dim);
}

/* [data-theme="light"] .btn-primary is in variables.css */

[data-theme="light"] .tech-tag {
    background: var(--bg-primary);
}

.btn-secondary {
    background: var(--bg-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

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

/* ====== FOOTER ====== */
.project-footer {
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--border);
    text-align: center;
    background: var(--bg-primary);
}

.project-footer p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ====== PROJECT META ====== */
.project-meta {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
    margin-top: var(--space-lg);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.meta-item i {
    color: var(--accent);
}

/* ====== OVERVIEW CARD ====== */
.overview-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    font-size: 1.0625rem;
    line-height: 1.8;
}

.overview-card strong {
    color: var(--accent);
}

/* ====== HIGHLIGHT BOX ====== */
.highlight-box {
    display: flex;
    gap: var(--space-lg);
    background: linear-gradient(135deg, var(--accent-subtle), transparent);
    border: 1px solid var(--accent);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-top: var(--space-lg);
}

.highlight-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: var(--bg-deep);
    border-radius: var(--radius-md);
    font-size: 1.25rem;
}

[data-theme="light"] .highlight-icon {
    color: #ffffff;
}

.highlight-content h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    margin-bottom: var(--space-xs);
    color: var(--accent);
}

.highlight-content p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.7;
}

/* ====== PHASE TIMELINE ====== */
.phase-timeline {
    position: relative;
    padding-left: 80px;
}

.phase-timeline::before {
    content: '';
    position: absolute;
    left: 28px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent), var(--accent-dim), transparent);
}

.phase-item {
    position: relative;
    margin-bottom: var(--space-xl);
}

.phase-item:last-child {
    margin-bottom: 0;
}

.phase-marker {
    position: absolute;
    left: -80px;
    top: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-deep);
    border: 2px solid var(--accent);
    border-radius: 50%;
}

.phase-number {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent);
}

.phase-content {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: border-color var(--duration-standard) var(--ease-smooth);
}

.phase-content:hover {
    border-color: var(--accent);
}

.phase-content h3 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.phase-content .content-list {
    background: transparent;
    border: none;
    padding: 0;
}

/* ====== GALLERY GRID ====== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
}

.gallery-item {
    aspect-ratio: 16/10;
    overflow: hidden;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: transform var(--duration-standard) var(--ease-smooth),
                border-color var(--duration-standard) var(--ease-smooth),
                box-shadow var(--duration-standard) var(--ease-smooth);
    cursor: pointer;
    position: relative;
}

.gallery-item:hover {
    border-color: var(--accent);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-emphasis) var(--ease-enter);
}

/* gallery-item:hover img transform in @media (hover: hover) below */

.gallery-item .gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-sm);
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 500;
    opacity: 0;
    transition: opacity var(--duration-standard) var(--ease-smooth);
}

.gallery-item:hover .gallery-caption {
    opacity: 1;
}

.gallery-item-placeholder,
.gallery-item:has(.gallery-placeholder) {
    cursor: default;
}

.gallery-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    background: linear-gradient(135deg, var(--bg-elevated), var(--accent-subtle));
    color: var(--text-muted);
}

.gallery-placeholder i {
    font-size: 2rem;
    color: var(--accent);
    opacity: 0.5;
}

.gallery-placeholder span {
    font-size: 0.85rem;
    font-weight: 500;
    text-align: center;
    padding: 0 var(--space-sm);
}

/* ====== ARCHITECTURE IMAGE ====== */
.architecture-image {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    margin-bottom: var(--space-xl);
    text-align: center;
    transition: border-color var(--duration-standard) var(--ease-smooth);
    cursor: pointer;
}

.architecture-image:hover {
    border-color: var(--accent);
}

.architecture-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    transition: transform var(--duration-emphasis) var(--ease-enter);
}

/* architecture-image:hover img transform in @media (hover: hover) below */

.architecture-placeholder {
    height: 280px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    color: var(--text-muted);
    background: linear-gradient(135deg, var(--accent-subtle) 0%, transparent 100%);
    border-radius: var(--radius-md);
}

.architecture-placeholder i {
    font-size: 3.5rem;
    color: var(--accent);
    opacity: 0.4;
}

.architecture-placeholder span {
    font-weight: 500;
}

.architecture-placeholder small {
    font-size: 0.8rem;
    opacity: 0.7;
}

/* ====== LIGHTBOX MODAL ====== */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--duration-emphasis) var(--ease-enter),
                visibility var(--duration-emphasis);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 85vh;
    transform: scale(0.95);
    transition: transform var(--duration-emphasis) var(--ease-out);
}

.lightbox.active .lightbox-content {
    transform: scale(1);
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    transition: opacity 0.2s var(--ease-smooth);
}

.lightbox-content img.lightbox-fade {
    opacity: 0;
}

.lightbox-caption {
    text-align: center;
    color: #fff;
    font-size: 0.9rem;
    margin-top: var(--space-md);
    opacity: 0.9;
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: #fff;
    font-size: 1.25rem;
    cursor: pointer;
    transition: background var(--duration-micro) var(--ease-smooth),
                border-color var(--duration-micro) var(--ease-smooth),
                transform var(--duration-micro) var(--ease-smooth);
}

.lightbox-close:hover {
    background: var(--accent);
    border-color: var(--accent);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: #fff;
    font-size: 1.25rem;
    cursor: pointer;
    transition: background var(--duration-micro) var(--ease-smooth),
                border-color var(--duration-micro) var(--ease-smooth);
}

.lightbox-nav:hover {
    background: var(--accent);
    border-color: var(--accent);
}

.lightbox-prev {
    left: -70px;
}

.lightbox-next {
    right: -70px;
}

.lightbox-counter {
    position: absolute;
    bottom: -40px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
    font-family: var(--font-mono);
}

/* Lightbox responsive */
@media (max-width: 768px) {
    .lightbox-nav {
        display: none;
    }
    
    .lightbox-content {
        max-width: 95vw;
    }
    
    .lightbox-close {
        top: -50px;
        right: 50%;
        transform: translateX(50%);
    }
}

/* ====== CALLOUT GRID ====== */
.callout-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
}

.callout-box {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    transition: transform var(--duration-standard) var(--ease-smooth),
                border-color var(--duration-standard) var(--ease-smooth),
                box-shadow var(--duration-standard) var(--ease-smooth);
}

.callout-box:hover {
    border-color: var(--accent);
}

.callout-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-subtle);
    color: var(--accent);
    border-radius: 50%;
    font-size: 1.5rem;
    transition: background var(--duration-standard) var(--ease-smooth),
                color var(--duration-standard) var(--ease-smooth);
}

.callout-box:hover .callout-icon {
    background: var(--accent);
    color: var(--bg-deep);
}

[data-theme="light"] .callout-box:hover .callout-icon {
    color: #ffffff;
}

.callout-box h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    margin-bottom: var(--space-xs);
}

.callout-box p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* ====== SERVICE GRID ====== */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.service-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: border-color var(--duration-standard) var(--ease-smooth),
                box-shadow var(--duration-standard) var(--ease-smooth);
}

.service-card:hover {
    border-color: var(--accent);
}

.service-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.service-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: 1.25rem;
}

.service-icon.zimbra { background: rgba(66, 133, 244, 0.15); color: #4285f4; }
.service-icon.zabbix { background: rgba(220, 53, 69, 0.15); color: #dc3545; }
.service-icon.zammad { background: rgba(255, 193, 7, 0.15); color: #ffc107; }
.service-icon.mdm { background: rgba(40, 167, 69, 0.15); color: #28a745; }

.service-header h3 {
    font-size: 1rem;
    margin: 0;
}

.service-type {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.service-card > p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.service-features {
    list-style: none;
    margin: 0;
    padding: 0;
}

.service-features li {
    position: relative;
    padding-left: 1.25rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

/* ====== ACHIEVEMENT GRID ====== */
.achievement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-md);
}

.achievement-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.achievement-card h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.achievement-card h3 i {
    color: var(--accent);
}

.achievement-card .content-list {
    background: transparent;
    border: none;
    padding: 0;
}

/* ====== TECH CATEGORIES ====== */
.tech-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.tech-category h3 {
    font-family: var(--font-display);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent);
    margin-bottom: var(--space-sm);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
}

.tech-tags span {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: border-color var(--duration-micro) var(--ease-smooth),
                color var(--duration-micro) var(--ease-smooth);
}

.tech-tags span:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ====== ROLE CARD ====== */
.role-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-left: 4px solid var(--accent);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.role-card p {
    font-size: 1rem;
    line-height: 1.8;
    margin: 0;
}

.role-card strong {
    color: var(--accent);
}

/* ====== IMPLEMENTATION BLOCK ====== */
.implementation-block {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
}

.implementation-block h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.implementation-block h3 i {
    color: var(--accent);
}

.implementation-block .content-list {
    background: transparent;
    border: none;
    padding: 0;
}

/* ====== HOVER TRANSFORMS (pointer devices only) ====== */
@media (hover: hover) {
    .btn-primary:hover {
        transform: translateY(var(--lift-subtle));
        box-shadow: 0 8px 30px var(--accent-glow);
    }

    .feature-card:hover {
        transform: translateY(var(--lift-subtle));
        box-shadow: var(--shadow-hover-card), var(--shadow-glow-accent);
    }

    .gallery-item:hover {
        transform: translateY(var(--lift-subtle));
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    }

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

    .architecture-image:hover img {
        transform: scale(1.02);
    }

    .lightbox-close:hover {
        transform: rotate(45deg);
    }

    .callout-box:hover {
        transform: translateY(var(--lift-subtle));
        box-shadow: var(--shadow-glow-accent);
    }

    .back-btn:hover i {
        transform: translateX(-3px);
    }

    .service-card:hover {
        transform: translateY(var(--lift-micro));
        box-shadow: var(--shadow-glow-accent);
    }
}

/* ====== TAP FEEDBACK ====== */
.back-btn:active {
    transform: scale(0.95);
    border-color: var(--accent);
    color: var(--accent);
    transition-duration: 0.1s;
}

/* .btn:active is in variables.css */

.feature-card:active {
    transform: scale(0.98);
    border-color: var(--accent);
    transition-duration: 0.1s;
}

.gallery-item:active {
    transform: scale(0.97);
    border-color: var(--accent);
    transition-duration: 0.1s;
}

.callout-box:active {
    transform: scale(0.98);
    border-color: var(--accent);
    transition-duration: 0.1s;
}

.tech-tag:active {
    border-color: var(--accent);
    color: var(--accent);
    transition-duration: 0.1s;
}

.lightbox-close:active,
.lightbox-nav:active {
    transform: scale(0.9);
    transition-duration: 0.1s;
}

/* ====== TAP HIGHLIGHT SUPPRESSION ====== */
@media (pointer: coarse) {
    .back-btn,
    .btn,
    .feature-card,
    .gallery-item,
    .callout-box,
    .tech-tag,
    .lightbox-close,
    .lightbox-nav {
        -webkit-tap-highlight-color: transparent;
    }
}

/* ====== RESPONSIVE ====== */
@media (max-width: 768px) {
    .project-nav-container {
        padding: 0 var(--space-sm);
    }
    
    .back-btn span {
        display: none;
    }
    
    .back-btn {
        padding: 0.5rem 0.75rem;
    }
    
    .project-hero {
        padding-top: calc(var(--nav-height) + var(--space-xl));
    }
    
    .project-title {
        font-size: 1.75rem;
    }
    
    .project-meta {
        gap: var(--space-md);
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .data-table th,
    .data-table td {
        padding: var(--space-sm);
        font-size: 0.8rem;
    }
    
    .highlight-box {
        flex-direction: column;
        text-align: center;
    }
    
    .highlight-icon {
        margin: 0 auto;
    }
    
    .phase-timeline {
        padding-left: 60px;
    }
    
    .phase-timeline::before {
        left: 18px;
    }
    
    .phase-marker {
        left: -60px;
        width: 40px;
        height: 40px;
    }
    
    .phase-number {
        font-size: 1rem;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .callout-grid {
        grid-template-columns: 1fr;
    }
    
    .service-grid {
        grid-template-columns: 1fr;
    }
    
    .achievement-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-categories {
        grid-template-columns: 1fr;
    }
}

/* ====== PROJECT PAGE ENTRANCE ====== */
@keyframes projectFadeIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.project-hero .project-category {
    animation: projectFadeIn 0.6s var(--ease-enter) 0.1s both;
}

.project-hero .project-title {
    animation: projectFadeIn 0.6s var(--ease-enter) 0.2s both;
}

.project-hero .project-subtitle {
    animation: projectFadeIn 0.6s var(--ease-enter) 0.3s both;
}

.project-hero .tech-stack {
    animation: projectFadeIn 0.6s var(--ease-enter) 0.4s both;
}

.project-hero .project-meta {
    animation: projectFadeIn 0.6s var(--ease-enter) 0.5s both;
}

/* Skip entrance on back/forward navigation */
.skip-entrance .project-hero .project-category,
.skip-entrance .project-hero .project-title,
.skip-entrance .project-hero .project-subtitle,
.skip-entrance .project-hero .tech-stack,
.skip-entrance .project-hero .project-meta {
    animation: none;
}

/* ====== REDUCED MOTION ====== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}