/* ============================================
   DESIGN SYSTEM - Minimal & Warm Deep Blue
   ============================================ */

:root {
    --primary-50: #e8f0fe;
    --primary-100: #c6dafc;
    --primary-500: #1a56db;
    --primary-600: #1648b8;
    --primary-700: #123a94;
    --primary-800: #0e2d71;
    --primary-900: #0a1f4d;
    --primary-950: #061230;
    --warm-400: #f19535;
    --warm-500: #ed7411;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --bg-primary: var(--primary-950);
    --bg-secondary: var(--primary-900);
    --bg-card: rgba(10, 31, 77, 0.6);
    --text-primary: #ffffff;
    --text-secondary: var(--gray-300);
    --text-muted: var(--gray-400);
    --accent: var(--warm-400);
    --font-thai: 'Kanit', sans-serif;
    --font-english: 'Inter', sans-serif;
    --section-padding: 100px 0;
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --shadow-glow: 0 0 30px rgba(241, 149, 53, 0.3);
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-thai);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.3;
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--warm-400);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 15s infinite ease-in-out;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) translateX(0);
        opacity: 0.3;
    }

    50% {
        transform: translateY(-200px) translateX(-20px);
        opacity: 0.5;
    }
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition-medium);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(6, 18, 48, 0.95);
    backdrop-filter: blur(10px);
    padding: 15px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-size: 1.8rem;
    font-weight: 700;
    font-family: var(--font-english);
}

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

.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-link {
    font-size: 0.95rem;
    color: var(--text-secondary);
    position: relative;
    padding: 5px 0;
}

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

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

/* Nav Actions - Theme Toggle & Download Button */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--gray-700);
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-medium);
}

.theme-toggle:hover {
    border-color: var(--warm-400);
    color: var(--warm-400);
    transform: rotate(20deg);
}

.btn-download {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: linear-gradient(135deg, var(--warm-400) 0%, var(--warm-500) 100%);
    border-radius: var(--radius-sm);
    color: #fff;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-medium);
}

.btn-download:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(241, 149, 53, 0.4);
}

/* Light Mode Theme */
body.light-mode {
    --bg-primary: #f8fafc;
    --bg-secondary: #e2e8f0;
    --bg-card: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --gray-700: #cbd5e1;
    --gray-800: #e2e8f0;
}

body.light-mode .navbar {
    background: rgba(248, 250, 252, 0.95);
    border-bottom: 1px solid #e2e8f0;
}

body.light-mode .hero {
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 50%, #cbd5e1 100%);
}

body.light-mode .nav-toggle span {
    background: #1e293b;
}

body.light-mode .timeline-content,
body.light-mode .skill-card-front,
body.light-mode .soft-skill-item,
body.light-mode .language-card,
body.light-mode .hobby-card,
body.light-mode .info-item,
body.light-mode .stat-card {
    background: #ffffff;
    border-color: #e2e8f0;
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 100px 20px;
    background: linear-gradient(135deg, var(--primary-950) 0%, var(--primary-900) 50%, var(--primary-800) 100%);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-greeting {
    font-size: 1.1rem;
    color: var(--accent);
    margin-bottom: 15px;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.2s;
}

.hero-name {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.4s;
}

.hero-name span {
    color: var(--accent);
}

.hero-title {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-family: var(--font-english);
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.6s;
}

.hero-slogan {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 35px;
    font-style: italic;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.8s;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 1s;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius-xl);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-medium);
    border: none;
    font-family: var(--font-thai);
}

.btn-primary {
    background: linear-gradient(135deg, var(--warm-400) 0%, var(--warm-500) 100%);
    color: #fff;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 40px rgba(241, 149, 53, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--gray-600);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-3px);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    animation: fadeInRight 1s ease forwards 0.5s;
}

.image-wrapper {
    position: relative;
    width: 350px;
    height: 350px;
}

.image-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, var(--warm-400) 0%, transparent 70%);
    opacity: 0.2;
    animation: pulse 3s infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.2;
    }

    50% {
        transform: translate(-50%, -50%) scale(1.1);
        opacity: 0.3;
    }
}

.profile-placeholder {
    position: relative;
    width: 280px;
    height: 280px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-800) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 4px solid var(--warm-400);
    box-shadow: 0 0 50px rgba(241, 149, 53, 0.3);
}

.profile-placeholder i {
    font-size: 8rem;
    color: var(--gray-500);
}

.profile-image {
    position: relative;
    width: 280px;
    height: 280px;
    margin: 0 auto;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--warm-400);
    box-shadow: 0 0 50px rgba(241, 149, 53, 0.3);
}

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

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    animation: fadeIn 1s ease forwards 1.5s;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--gray-500);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--warm-400);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        transform: translateY(0);
        opacity: 1;
    }

    100% {
        transform: translateY(10px);
        opacity: 0;
    }
}

.section-title {
    font-size: 2rem;
    margin-bottom: 60px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.title-number {
    font-family: var(--font-english);
    color: var(--accent);
    font-size: 1.2rem;
    font-weight: 600;
}

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, var(--gray-700), transparent);
    margin-left: 20px;
}

.about {
    padding: var(--section-padding);
    background: var(--bg-primary);
    position: relative;
    z-index: 1;
}

.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.about-text strong {
    color: var(--accent);
}

.about-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 30px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-800);
    transition: var(--transition-medium);
    cursor: pointer;
    position: relative;
}

.info-item:hover {
    border-color: var(--warm-400);
    transform: translateX(10px);
}

.info-interactive.active {
    border-color: var(--warm-400);
    box-shadow: var(--shadow-glow);
    transform: scale(1.02);
}

/* Expandable Info Item with Education Timeline */
.info-expandable {
    flex-wrap: wrap;
}

.info-expandable:hover {
    transform: none;
}

.info-expandable.expanded {
    border-color: var(--warm-400);
    box-shadow: var(--shadow-glow);
}

.info-main {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.info-expand-icon {
    font-size: 0.8rem;
    color: var(--warm-400);
    transition: transform 0.3s ease;
}

.info-expandable.expanded .info-expand-icon {
    transform: rotate(180deg);
}

.info-details {
    width: 100%;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease, opacity 0.3s ease;
    opacity: 0;
}

.info-expandable.expanded .info-details {
    max-height: 400px;
    padding-top: 20px;
    opacity: 1;
}

/* Education Timeline Mini */
.edu-timeline {
    position: relative;
    padding-left: 25px;
}

.edu-timeline::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gray-700);
}

.edu-item {
    position: relative;
    margin-bottom: 20px;
    display: flex;
    gap: 15px;
}

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

.edu-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--gray-700);
    border: 3px solid var(--bg-card);
    position: absolute;
    left: -25px;
    top: 5px;
    z-index: 1;
}

.edu-dot.current {
    background: var(--warm-400);
    box-shadow: 0 0 10px rgba(241, 149, 53, 0.5);
}

.edu-content {
    flex: 1;
}

.edu-date {
    font-size: 0.75rem;
    color: var(--warm-400);
    font-weight: 500;
}

.edu-content h4 {
    font-size: 0.9rem;
    margin: 3px 0;
    color: var(--text-primary);
}

.edu-content p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Detail List for Expandable Items */
.detail-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.detail-item:hover {
    background: rgba(241, 149, 53, 0.1);
    transform: translateX(5px);
}

.detail-item i {
    font-size: 0.85rem;
    color: var(--warm-400);
    width: 20px;
    text-align: center;
}

.detail-item span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Info Icon Wrappers with Gradients */
.info-icon-wrapper {
    width: 45px;
    height: 45px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.info-item:hover .info-icon-wrapper {
    transform: scale(1.1) rotate(5deg);
}

.info-icon-wrapper i {
    font-size: 1.2rem;
    color: #fff;
}

.icon-edu {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 6px 15px rgba(102, 126, 234, 0.3);
}

.icon-location {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    box-shadow: 0 6px 15px rgba(245, 87, 108, 0.3);
}

.icon-work {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    box-shadow: 0 6px 15px rgba(56, 239, 125, 0.3);
}

/* Info Arrow */
.info-arrow {
    margin-left: auto;
    font-size: 0.8rem;
    color: var(--gray-500);
    transition: transform 0.3s ease, color 0.3s ease;
}

.info-item:hover .info-arrow {
    color: var(--warm-400);
    transform: translateX(5px);
}

.info-interactive.active .info-arrow {
    transform: rotate(90deg);
    color: var(--warm-400);
}

.info-item div {
    display: flex;
    flex-direction: column;
}

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

.info-value {
    font-weight: 500;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.stat-card {
    padding: 25px;
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(26, 86, 219, 0.1) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-800);
    text-align: center;
    transition: var(--transition-medium);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--warm-400);
    box-shadow: var(--shadow-glow);
}

.stat-interactive.active {
    transform: scale(1.05);
    border-color: var(--warm-400);
    box-shadow: 0 0 40px rgba(241, 149, 53, 0.4);
}

.stat-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.stat-card:hover .stat-icon {
    transform: scale(1.1) rotate(10deg);
}

.icon-pwc {
    background: linear-gradient(135deg, #f19535 0%, #ed7411 100%);
    box-shadow: 0 8px 20px rgba(241, 149, 53, 0.3);
}

.icon-bachelor {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    box-shadow: 0 8px 20px rgba(79, 172, 254, 0.3);
}

.stat-icon i {
    font-size: 1.5rem;
    color: #fff;
}

.stat-card h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.stat-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Stat Badge */
.stat-badge {
    display: inline-block;
    margin-top: 10px;
    padding: 5px 12px;
    background: rgba(241, 149, 53, 0.15);
    border: 1px solid var(--warm-400);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--warm-400);
    transition: all 0.3s ease;
}

.stat-card:hover .stat-badge {
    background: var(--warm-400);
    color: #fff;
}

.experience {
    padding: var(--section-padding);
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    z-index: 1;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 2px;
    background: linear-gradient(to bottom, var(--warm-400), var(--primary-600));
}

.timeline-item {
    position: relative;
    padding-left: 40px;
    padding-bottom: 50px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -8px;
    top: 0;
    width: 18px;
    height: 18px;
    background: var(--warm-400);
    border-radius: 50%;
    border: 3px solid var(--bg-primary);
    box-shadow: 0 0 20px rgba(241, 149, 53, 0.5);
}

.timeline-content {
    background: var(--bg-card);
    padding: 25px 30px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-800);
    transition: var(--transition-medium);
}

.timeline-content:hover {
    border-color: var(--warm-400);
    transform: translateX(10px);
}

.timeline-date {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 10px;
}

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.timeline-content h4 {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 10px;
}

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

.location-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    padding: 8px 16px;
    background: rgba(241, 149, 53, 0.1);
    border: 1px solid var(--warm-400);
    border-radius: var(--radius-sm);
    color: var(--warm-400);
    font-size: 0.85rem;
    transition: var(--transition-medium);
}

.location-link:hover {
    background: var(--warm-400);
    color: #fff;
    transform: translateX(5px);
}

/* Timeline Expandable Styles */
.timeline-expandable {
    cursor: pointer;
}

.timeline-arrow {
    font-size: 0.7rem;
    margin-left: 8px;
    transition: transform 0.3s ease;
    color: var(--warm-400);
}

.timeline-expandable.expanded .timeline-arrow {
    transform: rotate(180deg);
}

.timeline-expandable.expanded {
    border-color: var(--warm-400);
    box-shadow: var(--shadow-glow);
}

.timeline-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, margin 0.3s ease, opacity 0.3s ease;
    opacity: 0;
    margin: 0;
}

.timeline-expandable.expanded .timeline-details {
    max-height: 300px;
    margin: 15px 0;
    opacity: 1;
}

.timeline-details h5 {
    font-size: 0.9rem;
    color: var(--warm-400);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.timeline-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.timeline-details ul li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--gray-800);
}

.timeline-details ul li:last-child {
    border-bottom: none;
}

.timeline-details ul li i {
    color: #38ef7d;
    font-size: 0.85rem;
}

.skills {
    padding: var(--section-padding);
    background: var(--bg-secondary);
    position: relative;
    z-index: 1;
}

.skills-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.skills-category h3 {
    font-size: 1.3rem;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.skills-category h3 i {
    color: var(--accent);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.skill-card {
    background: var(--bg-card);
    padding: 20px 15px;
    border-radius: var(--radius-md);
    text-align: center;
    border: 1px solid var(--gray-800);
    transition: var(--transition-medium);
}

.skill-card:hover {
    border-color: var(--warm-400);
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.skill-card i {
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 10px;
}

.skill-card span {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.skill-card .skill-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 0;
}

.skills-grid-3 {
    grid-template-columns: repeat(2, 1fr);
}

/* Flip Card Styles */
.skill-card-flip {
    perspective: 1000px;
    height: 180px;
    cursor: pointer;
}

.skill-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d;
}

.skill-card-flip.flipped .skill-card-inner {
    transform: rotateY(180deg);
}

.skill-card-front,
.skill-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px 15px;
    border: 1px solid var(--gray-800);
    transition: var(--transition-medium);
}

.skill-card-front {
    background: var(--bg-card);
}

.skill-card-front:hover {
    border-color: var(--warm-400);
    box-shadow: var(--shadow-glow);
}

/* Skill Icon Wrapper - Modern Gradient Style */
.skill-icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skill-card-front:hover .skill-icon-wrapper {
    transform: scale(1.1) rotate(5deg);
}

.skill-icon-wrapper i {
    font-size: 1.8rem;
    color: #fff;
}

/* Microsoft Office - Blue Gradient */
.icon-office {
    background: linear-gradient(135deg, #0078d4 0%, #00bcf2 100%);
    box-shadow: 0 8px 20px rgba(0, 120, 212, 0.3);
}

/* Coding - Purple Gradient */
.icon-code {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

/* Graphic Design - Pink Gradient */
.icon-design {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    box-shadow: 0 8px 20px rgba(245, 87, 108, 0.3);
}

/* AI - Cyan Gradient */
.icon-ai {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    box-shadow: 0 8px 20px rgba(79, 172, 254, 0.3);
}

.skill-card-front span {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.skill-card-front .skill-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 0;
}

.click-hint {
    font-size: 0.7rem;
    color: var(--warm-400);
    margin-top: 10px;
    opacity: 0.7;
    animation: pulse-hint 2s infinite;
}

@keyframes pulse-hint {

    0%,
    100% {
        opacity: 0.5;
    }

    50% {
        opacity: 1;
    }
}

.skill-card-back {
    background: linear-gradient(135deg, var(--warm-400) 0%, var(--warm-500) 100%);
    transform: rotateY(180deg);
    color: #fff;
}

.skill-card-back i {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.skill-card-back span {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.skill-card-back ul {
    text-align: left;
    font-size: 0.8rem;
    list-style: none;
    padding: 0;
}

.skill-card-back ul li {
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.skill-card-back ul li::before {
    content: '✓';
    font-weight: bold;
}

.soft-skills-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.soft-skill-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-800);
    transition: var(--transition-medium);
}

.soft-skill-item:hover {
    border-color: var(--warm-400);
    transform: translateX(10px);
}

.soft-skill-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.soft-skill-item:hover .soft-skill-icon {
    transform: scale(1.1) rotate(5deg);
}

.soft-skill-icon i {
    font-size: 1.2rem;
    color: #fff;
}

/* Communication - Orange Gradient */
.icon-communicate {
    background: linear-gradient(135deg, #f19535 0%, #ed7411 100%);
    box-shadow: 0 6px 15px rgba(241, 149, 53, 0.3);
}

/* Teamwork - Green Gradient */
.icon-teamwork {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    box-shadow: 0 6px 15px rgba(56, 239, 125, 0.3);
}

/* Problem Solving - Yellow Gradient */
.icon-problem {
    background: linear-gradient(135deg, #f7971e 0%, #ffd200 100%);
    box-shadow: 0 6px 15px rgba(255, 210, 0, 0.3);
}

/* Time Management - Blue Gradient */
.icon-time {
    background: linear-gradient(135deg, #396afc 0%, #2948ff 100%);
    box-shadow: 0 6px 15px rgba(41, 72, 255, 0.3);
}

.soft-skill-info h4 {
    font-size: 1rem;
    margin-bottom: 3px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.expand-icon {
    font-size: 0.7rem;
    transition: transform 0.3s ease;
    color: var(--warm-400);
}

.soft-skill-item.expanded .expand-icon {
    transform: rotate(180deg);
}

.soft-skill-info p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.soft-skill-item {
    cursor: pointer;
}

.soft-skill-item.expanded {
    border-color: var(--warm-400);
    box-shadow: var(--shadow-glow);
}

.soft-skill-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, margin-top 0.3s ease, opacity 0.3s ease;
    opacity: 0;
}

.soft-skill-item.expanded .soft-skill-details {
    max-height: 200px;
    margin-top: 15px;
    opacity: 1;
}

.soft-skill-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.soft-skill-details ul li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--gray-800);
}

.soft-skill-details ul li:last-child {
    border-bottom: none;
}

.soft-skill-details ul li i {
    color: #38ef7d;
    font-size: 0.8rem;
}

/* ===== Languages Section ===== */
.languages {
    padding: var(--section-padding);
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    position: relative;
    z-index: 1;
}

.languages-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.language-card {
    display: flex;
    gap: 20px;
    padding: 30px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-800);
    transition: var(--transition-medium);
}

.language-card:hover {
    border-color: var(--warm-400);
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.language-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 2.5rem;
    transition: transform 0.3s ease;
}

.language-card:hover .language-icon {
    transform: scale(1.1) rotate(10deg);
}

.icon-thai {
    background: linear-gradient(135deg, #1a56db 0%, #0d3a91 100%);
    box-shadow: 0 8px 20px rgba(26, 86, 219, 0.3);
}

.icon-english {
    background: linear-gradient(135deg, #dc2626 0%, #991b1b 100%);
    box-shadow: 0 8px 20px rgba(220, 38, 38, 0.3);
}

.language-info {
    flex: 1;
}

.language-info h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.language-level {
    color: var(--warm-400);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.language-skills {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.lang-skill {
    display: flex;
    align-items: center;
    gap: 15px;
}

.lang-skill span {
    font-size: 0.85rem;
    color: var(--text-muted);
    width: 60px;
    flex-shrink: 0;
}

.skill-bar {
    flex: 1;
    height: 8px;
    background: var(--gray-800);
    border-radius: 10px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--warm-400) 0%, var(--warm-500) 100%);
    border-radius: 10px;
    transition: width 1s ease;
}

/* ===== Hobbies Section ===== */
.hobbies {
    padding: var(--section-padding);
    background: var(--bg-primary);
    position: relative;
    z-index: 1;
}

.hobbies-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.hobby-card {
    padding: 30px 20px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-800);
    text-align: center;
    transition: var(--transition-medium);
    cursor: pointer;
}

.hobby-card:hover {
    border-color: var(--warm-400);
    transform: translateY(-10px);
    box-shadow: var(--shadow-glow);
}

.hobby-card.active {
    border-color: var(--warm-400);
    background: linear-gradient(135deg, rgba(241, 149, 53, 0.1) 0%, rgba(237, 116, 17, 0.1) 100%);
    box-shadow: 0 0 40px rgba(241, 149, 53, 0.3);
}

.hobby-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 15px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.hobby-card:hover .hobby-icon {
    transform: scale(1.15) rotate(10deg);
}

.hobby-icon i {
    font-size: 1.8rem;
    color: #fff;
}

/* Gaming - Purple */
.icon-gaming {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

/* Sports - Green */
.icon-sports {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    box-shadow: 0 8px 20px rgba(56, 239, 125, 0.3);
}

/* Cooking - Orange */
.icon-cooking {
    background: linear-gradient(135deg, #f19535 0%, #ed7411 100%);
    box-shadow: 0 8px 20px rgba(241, 149, 53, 0.3);
}

/* Dog - Brown */
.icon-dog {
    background: linear-gradient(135deg, #d4a373 0%, #bc6c25 100%);
    box-shadow: 0 8px 20px rgba(188, 108, 37, 0.3);
}

.hobby-card h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

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

.contact {
    padding: var(--section-padding);
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    position: relative;
    z-index: 1;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.contact-info>p {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-800);
    transition: var(--transition-medium);
}

.contact-card:hover {
    border-color: var(--warm-400);
    transform: translateX(10px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--warm-400) 0%, var(--warm-500) 100%);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.2rem;
    color: #fff;
}

.contact-details {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.contact-value {
    font-size: 0.95rem;
    word-break: break-all;
}

.contact-form-container {
    background: var(--bg-card);
    padding: 35px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-800);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--primary-900);
    border: 1px solid var(--gray-700);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-thai);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 15px rgba(241, 149, 53, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-500);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.footer {
    background: var(--primary-950);
    padding: 50px 0 30px;
    border-top: 1px solid var(--gray-800);
    position: relative;
    z-index: 1;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.footer-logo span {
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-english);
}

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

.footer-logo p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 5px;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.social-link {
    width: 45px;
    height: 45px;
    background: var(--bg-card);
    border: 1px solid var(--gray-800);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-medium);
}

.social-link:hover {
    border-color: var(--accent);
    background: var(--accent);
    transform: translateY(-3px);
}

.social-link i {
    font-size: 1.1rem;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.social-link:hover i {
    color: #fff;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--gray-800);
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

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

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-image {
        order: -1;
    }

    .image-wrapper {
        width: 280px;
        height: 280px;
    }

    .profile-placeholder {
        width: 220px;
        height: 220px;
    }

    .profile-placeholder i {
        font-size: 6rem;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-stats {
        flex-direction: row;
    }

    .stat-card {
        flex: 1;
    }

    .skills-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--primary-950);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 30px;
        transition: var(--transition-medium);
    }

    .nav-menu.active {
        right: 0;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero {
        padding: 120px 20px 80px;
    }

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

    .hero-title {
        font-size: 1.2rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .about-stats {
        flex-direction: column;
    }

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-name {
        font-size: 2rem;
    }

    .profile-placeholder {
        width: 180px;
        height: 180px;
    }

    .profile-placeholder i {
        font-size: 4rem;
    }

    .profile-image {
        width: 180px;
        height: 180px;
    }

    .image-wrapper {
        width: 200px;
        height: 200px;
    }

    .timeline-content {
        padding: 20px;
    }

    .timeline-content h4 {
        font-size: 0.9rem;
        line-height: 1.4;
    }

    .location-link {
        padding: 6px 12px;
        font-size: 0.8rem;
    }

    .skills-grid-3 {
        grid-template-columns: 1fr;
    }

    .contact-form-container {
        padding: 25px;
    }

    .contact-card {
        flex-direction: column;
        text-align: center;
    }

    .soft-skill-item {
        flex-direction: column;
        text-align: center;
    }

    .stat-card h3 {
        font-size: 0.95rem;
    }

    .stat-card p {
        font-size: 0.8rem;
    }
}