/* ==========================================================================
   Hritam Shrivastava Portfolio - Matte White & Typewriter Engineering Theme
   ========================================================================== */

:root {
    /* Color Palette - Matte White Minimalist */
    --bg-main: #fcfcfd;
    --bg-secondary: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-hover: #ffffff;
    
    --accent-dark: #0f172a;
    --accent-blue: #2563eb;
    --accent-emerald: #059669;
    --accent-amber: #d97706;

    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --text-subtle: #94a3b8;
    
    --border-color: #e2e8f0;
    --border-dark: #0f172a;

    /* Fonts */
    --font-heading: 'Space Mono', 'Fira Code', monospace;
    --font-mono: 'Fira Code', 'Space Mono', monospace;
    --font-body: 'Plus Jakarta Sans', sans-serif;

    /* Transitions & Shadows */
    --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 16px 40px -8px rgba(15, 23, 42, 0.14);
}

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

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

body {
    background-color: var(--bg-main);
    color: var(--text-secondary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

::selection {
    background: var(--accent-dark);
    color: #ffffff;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
}

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

.highlight-text {
    color: var(--accent-dark);
    position: relative;
    display: inline-block;
}

.highlight-text::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 100%;
    height: 6px;
    background: rgba(15, 23, 42, 0.1);
    z-index: -1;
    border-radius: 2px;
}

/* Custom Interactive Cursor for Matte Light Theme */
#cursor-dot {
    position: fixed;
    top: 0;
    left: 0;
    width: 6px;
    height: 6px;
    background-color: var(--accent-dark);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width 0.15s, height 0.15s;
}

#cursor-ring {
    position: fixed;
    top: 0;
    left: 0;
    width: 32px;
    height: 32px;
    border: 1.5px solid var(--accent-dark);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: transform 0.08s ease-out, width 0.25s, height 0.25s, background-color 0.25s;
}

body.cursor-hover #cursor-dot {
    width: 10px;
    height: 10px;
    background-color: var(--accent-blue);
}

body.cursor-hover #cursor-ring {
    width: 48px;
    height: 48px;
    border-color: var(--accent-blue);
    background-color: rgba(37, 99, 235, 0.06);
}

/* Layout & Cards */
.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: 90px 0;
    position: relative;
}

.matte-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.matte-card:hover {
    border-color: var(--border-dark);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

/* Header & Navigation */
.navbar-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    background: rgba(252, 252, 253, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-brand {
    font-family: var(--font-mono);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-link {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 4px 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent-dark);
    font-weight: 700;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-dark);
    transition: var(--transition-fast);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.4rem;
    cursor: pointer;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 10px 22px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
    border: none;
}

.btn-primary {
    background: var(--accent-dark);
    color: #ffffff;
}

.btn-primary:hover {
    background: #1e293b;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    border-color: var(--border-dark);
    background: var(--bg-secondary);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 7px 16px;
    font-size: 0.825rem;
}

.btn-lg {
    padding: 12px 28px;
    font-size: 0.95rem;
}

.btn-icon-only {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-sm);
    background: #ffffff;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1.1rem;
}

.btn-icon-only:hover {
    border-color: var(--accent-dark);
    color: var(--accent-dark);
    transform: translateY(-2px);
}

/* Hero Section */
.hero-section {
    padding-top: 150px;
    padding-bottom: 90px;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 50px;
    align-items: center;
}

.hero-title {
    font-size: 3.25rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 12px;
}

.hero-subtitle {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 20px;
    min-height: 2.2rem;
}

.typewriter {
    color: var(--accent-blue);
    border-right: 2px solid var(--accent-dark);
    animation: blink 0.75s step-end infinite;
}

@keyframes blink {
    from, to { border-color: transparent; }
    50% { border-color: var(--accent-dark); }
}

.hero-description {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 600px;
    margin-bottom: 24px;
}

.hero-description strong {
    color: var(--text-primary);
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 32px;
}

.tag {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
}

/* Clean Hero Profile Photo (No surrounding graphics) */
.hero-visual {
    display: flex;
    justify-content: center;
}

.profile-photo-wrapper {
    width: 280px;
    height: 320px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 2px solid var(--border-dark);
    box-shadow: var(--shadow-lg);
    background: #ffffff;
}

.profile-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
}

/* Section Header */
.section-header {
    margin-bottom: 50px;
}

.section-subtitle {
    font-family: var(--font-mono);
    font-size: 0.825rem;
    font-weight: 700;
    color: var(--accent-blue);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    display: block;
    margin-bottom: 6px;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.section-intro {
    color: var(--text-muted);
    font-size: 1rem;
}

.section-line {
    width: 40px;
    height: 3px;
    background: var(--accent-dark);
    margin-top: 16px;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 28px;
    margin-bottom: 50px;
}

.about-bio {
    padding: 32px;
}

.bio-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}

.bio-icon {
    font-size: 1.4rem;
    color: var(--accent-dark);
}

.bio-text {
    color: var(--text-secondary);
    margin-bottom: 14px;
    font-size: 0.975rem;
}

.edu-timeline {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.timeline-title {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.timeline-item {
    position: relative;
    padding-left: 24px;
    margin-bottom: 18px;
}

.timeline-dot {
    position: absolute;
    left: 0;
    top: 6px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-dark);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 3px;
    top: 16px;
    bottom: -18px;
    width: 2px;
    background: var(--border-color);
}

.timeline-item:last-child::before {
    display: none;
}

.timeline-content h5 {
    font-size: 0.95rem;
    color: var(--text-primary);
}

.timeline-institution {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.timeline-date {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.about-stats-column {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.stat-card {
    padding: 20px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.stat-card-icon.dark {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--accent-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.stat-card h4 {
    font-size: 0.975rem;
    margin-bottom: 4px;
}

.stat-card p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Certificates Grid */
.certificates-container {
    margin-top: 30px;
}

.certificates-title {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.cert-card {
    padding: 22px;
    display: flex;
    flex-direction: column;
    position: relative;
}

.cert-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    text-transform: uppercase;
}

.cert-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--accent-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.cert-body h4 {
    font-size: 1rem;
    margin-bottom: 4px;
    padding-right: 70px;
}

.cert-issuer {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 6px;
}

.cert-project {
    font-size: 0.825rem;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.cert-meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-family: var(--font-mono);
    font-size: 0.775rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding-top: 10px;
    margin-bottom: 14px;
}

.cert-view-btn {
    margin-top: auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 7px 14px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: var(--transition-fast);
}

.cert-view-btn:hover {
    background: var(--accent-dark);
    color: #ffffff;
    border-color: var(--accent-dark);
}

/* Skills Section - Compact Box Layout */
.compact-skills {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
}

.compact-card {
    padding: 16px 18px;
    display: flex;
    flex-direction: column;
}

.compact-card .skill-head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.compact-card .skill-icon {
    font-size: 1.35rem;
    color: var(--accent-dark);
}

.compact-card h4 {
    font-size: 0.925rem;
    line-height: 1.2;
}

.compact-card .skill-cat {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.compact-card .skill-desc {
    font-size: 0.825rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.project-card {
    padding: 26px;
    display: flex;
    flex-direction: column;
}

.project-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.project-badge {
    font-family: var(--font-mono);
    font-size: 0.725rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.project-badge.award {
    background: #fffbeb;
    border-color: #fde68a;
    color: var(--accent-amber);
}

.project-type {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.project-title {
    font-size: 1.2rem;
    margin-bottom: 6px;
}

.project-sub {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 14px;
}

.project-highlights {
    list-style: none;
    margin-bottom: 18px;
}

.project-highlights li {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.project-highlights li i {
    color: var(--accent-dark);
    margin-top: 3px;
    flex-shrink: 0;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 18px;
    margin-top: auto;
}

.project-tech span {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.project-links {
    display: flex;
    gap: 14px;
    border-top: 1px solid var(--border-color);
    padding-top: 14px;
}

.project-link {
    font-family: var(--font-mono);
    font-size: 0.825rem;
    font-weight: 600;
    color: var(--accent-dark);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.project-link:hover {
    color: var(--accent-blue);
}

/* Experience & Achievements */
.exp-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.column-title {
    font-family: var(--font-mono);
    font-size: 1.15rem;
    margin-bottom: 22px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.exp-card {
    padding: 22px;
    margin-bottom: 18px;
}

.exp-date {
    font-family: var(--font-mono);
    font-size: 0.775rem;
    font-weight: 700;
    color: var(--accent-blue);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.exp-role {
    font-size: 1.05rem;
    margin-bottom: 2px;
}

.exp-company {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 10px;
}

.exp-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.award-card {
    padding: 18px 20px;
    margin-bottom: 18px;
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.award-icon {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--accent-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.award-card h4 {
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.award-sub {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-amber);
    font-weight: 600;
    margin-bottom: 4px;
}

.award-card p {
    font-size: 0.825rem;
    color: var(--text-muted);
}

/* Contact Section */
.contact-card {
    padding: 50px 32px;
    text-align: center;
    max-width: 850px;
    margin: 0 auto;
}

.contact-header {
    margin-bottom: 32px;
}

.contact-title {
    font-size: 2.25rem;
    margin-bottom: 10px;
}

.contact-p {
    font-size: 1rem;
    color: var(--text-muted);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 18px;
    margin-bottom: 36px;
}

.contact-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 18px;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.contact-icon {
    font-size: 1.5rem;
    color: var(--accent-dark);
}

.contact-item h5 {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.contact-item a {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    word-break: break-all;
}

.contact-item a:hover {
    color: var(--accent-blue);
}

.contact-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    padding: 36px 0;
    border-top: 1px solid var(--border-color);
    background: var(--bg-main);
}

.footer-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.footer p {
    font-family: var(--font-mono);
    font-size: 0.825rem;
    color: var(--text-muted);
}

.footer-socials {
    display: flex;
    gap: 12px;
}

.footer-socials a {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.footer-socials a:hover {
    color: var(--accent-dark);
    border-color: var(--border-dark);
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(8px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    max-width: 580px;
    width: 100%;
    padding: 32px;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.25s ease;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 18px;
    right: 18px;
    background: transparent;
    border: none;
    font-size: 1.6rem;
    color: var(--text-muted);
    cursor: pointer;
}

.modal-close:hover {
    color: var(--accent-dark);
}

.modal-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
}

.modal-icon {
    font-size: 1.8rem;
    color: var(--accent-dark);
}

.modal-sub {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.modal-body {
    font-size: 0.925rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
    .hero-container, .about-grid, .exp-grid {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .projects-grid, .cert-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 64px;
        right: -100%;
        width: 80%;
        max-width: 280px;
        height: calc(100vh - 64px);
        background: #ffffff;
        flex-direction: column;
        padding: 32px 24px;
        transition: right 0.25s ease;
        border-left: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.open {
        right: 0;
    }

    .mobile-toggle {
        display: block;
    }

    .hero-title {
        font-size: 2.1rem;
    }

    .contact-title {
        font-size: 1.85rem;
    }
}

/* Custom Cursor Mobile Disable */
@media (max-width: 768px), (pointer: coarse) {
    #cursor-dot, #cursor-ring {
        display: none !important;
    }
}

/* Snooker Game Section */
.snooker-section {
    padding: 70px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.snooker-game-card {
    padding: 32px;
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}

.game-controls {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.game-score {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.canvas-wrapper {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    background: #291305;
    margin: 0 auto;
}

#snookerCanvas {
    width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    cursor: crosshair;
    touch-action: none;
}

.snooker-toast {
    background: #0f172a;
    color: #ffffff;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    box-shadow: var(--shadow-md);
    margin: 0 auto 16px auto;
    width: 100%;
    max-width: 420px;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition: opacity 0.4s ease, transform 0.4s ease, visibility 0.4s ease;
    z-index: 10;
}

.snooker-toast.hidden {
    opacity: 0 !important;
    visibility: hidden !important;
    transform: translateY(-10px) !important;
    pointer-events: none !important;
}

.toast-icon {
    font-size: 1.4rem;
    color: #f59e0b;
}

.toast-text {
    display: flex;
    flex-direction: column;
}

.toast-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: #94a3b8;
    letter-spacing: 0.1em;
}

.toast-text h4 {
    font-size: 0.95rem;
    color: #ffffff;
    margin: 0;
}

.pop-anim {
    animation: popBounce 0.5s ease;
}

@keyframes popBounce {
    0% { transform: translate(-50%, -20px) scale(0.8); }
    50% { transform: translate(-50%, 0) scale(1.1); }
    100% { transform: translate(-50%, 0) scale(1); }
}

.unlocked-skills-container {
    width: 100%;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.unlocked-title {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: 10px;
}

.unlocked-skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    min-height: 36px;
    align-items: center;
}

.unlocked-badge {
    background: #ffffff;
    border: 1px solid var(--border-color);
    padding: 5px 12px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.empty-hint {
    font-size: 0.85rem;
    color: var(--text-subtle);
    font-style: italic;
}

/* Skill Highlight Flash Animation */
.skill-highlight {
    animation: cardPulse 1.5s ease infinite alternate;
}

@keyframes cardPulse {
    0% { border-color: var(--border-color); box-shadow: var(--shadow-sm); }
    100% { border-color: var(--accent-blue); box-shadow: 0 0 20px rgba(37, 99, 235, 0.3); transform: translateY(-4px); }
}