@import url('https://fonts.googleapis.com/css2?family=Kanit:wght@100;200;300;400;500;600;700;800;900&display=swap');

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

:root {
    --primary: #c41c3b;
    --secondary: #ffffff;
    --accent: #d32f2f;
    --accent-dark: #a01030;
    --bg: #ffffff;
    --text: #2c2c2c;
    --border: #e8e8e8;
    --gray-light: #f5f5f5;
    --gray-medium: #999999;
    --gray-dark: #4a4a4a;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --radius: 24px;
    --radius-lg: 32px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Kanit', 'Segoe UI', 'Roboto', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 800;
    letter-spacing: -0.02em;
    font-family: 'Kanit', sans-serif;
}

h1 {
    font-size: 3.5rem;
    line-height: 1.1;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xl);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

p {
    font-size: 1rem;
    color: var(--gray-medium);
}

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
    padding: var(--spacing-md) 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-links a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover {
    color: var(--accent);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

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

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #c41c3b 0%, #a01030 100%);
    color: var(--secondary);
    padding: var(--spacing-2xl);
}

.hero-content {
    text-align: center;
    max-width: 800px;
}

.hero-title {
    color: var(--secondary);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease-out;
}

.hero-title::before {
    content: '';
    display: inline-block;
    width: 100%;
    height: 4px;
    background: var(--accent);
    margin-bottom: var(--spacing-md);
    border-radius: 2px;
    animation: slideIn 1s ease-out;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: #e8e8e8;
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

.hero-tags {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    animation: fadeInUp 1s ease-out 0.3s backwards;
}

.cta-button {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
    font-weight: 700;
    border: 2px solid var(--secondary);
    background: var(--secondary);
    color: var(--primary);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    animation: fadeInUp 1s ease-out 0.4s backwards;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    display: inline-block;
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
}

.cta-button:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 12px 36px rgba(211, 47, 47, 0.4);
    letter-spacing: 1px;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Bento Grid Section */
.bento-section {
    padding: var(--spacing-2xl) 0;
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 320px;
    gap: var(--spacing-lg);
    grid-auto-flow: dense;
}

/* Grid Items */
.grid-item {
    background: var(--secondary);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: var(--transition);
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    cursor: pointer;
}

.grid-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.grid-item:hover::before {
    transform: scaleX(1);
}

.grid-item:hover {
    border-color: var(--accent);
    box-shadow: 0 20px 40px rgba(211, 47, 47, 0.1);
    transform: translateY(-8px);
}

/* Grid Item Sizes - Desktop (equal size) */
.grid-item.large {
    grid-column: span 1;
    grid-row: span 1;
}

.grid-item.large-wide {
    grid-column: span 1;
    grid-row: span 1;
}

.grid-item.medium {
    grid-column: span 1;
    grid-row: span 1;
}

.grid-item.small {
    grid-column: span 1;
    grid-row: span 1;
}

.grid-item.featured {
    background: linear-gradient(135deg, #c41c3b 0%, #a01030 100%);
    color: var(--secondary);
    border-color: var(--accent);
}

.grid-item.featured h3 {
    color: var(--secondary);
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.grid-item.featured p {
    color: #f0f0f0;
    font-size: 1rem;
    font-weight: 600;
}

/* Grid Content */
.grid-content {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.grid-item h3 {
    margin-bottom: var(--spacing-md);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.grid-item p {
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
    color: var(--gray-dark);
    font-weight: 600;
    line-height: 1.6;
}

/* Tags */
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--accent);
    color: var(--primary);
    border-radius: 16px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.featured .tag {
    background: rgba(211, 47, 47, 0.2);
    color: var(--accent);
    border: 1px solid var(--accent);
}

/* Skills Section */
.skills-section {
    padding: var(--spacing-2xl) 0;
    background: #f5f5f5;
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    margin: var(--spacing-2xl) 0;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.skill-card {
    background: var(--secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius);
    border: 2px solid var(--border);
    transition: var(--transition);
}

.skill-card:hover {
    border-color: var(--accent);
    box-shadow: 0 12px 24px rgba(211, 47, 47, 0.1);
    transform: translateY(-4px);
}

.skill-title {
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    font-weight: 800;
}

.skill-list {
    list-style: none;
}

.skill-list li {
    padding: var(--spacing-xs) 0;
    color: var(--gray-medium);
    position: relative;
    padding-left: var(--spacing-md);
}

.skill-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

/* Stats Section */
.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-2xl) 0;
    margin: var(--spacing-2xl) 0;
}

.stat-card {
    background: var(--primary);
    color: var(--secondary);
    padding: var(--spacing-xl);
    border-radius: var(--radius);
    text-align: center;
    border: 2px solid var(--accent);
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: 0 20px 40px rgba(211, 47, 47, 0.2);
    transform: translateY(-4px);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

.stat-label {
    font-size: 1.05rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: #bbb;
    font-weight: 700;
}

/* Contact Section */
.contact-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, #f5f5f5 0%, #ffffff 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    margin: var(--spacing-2xl) 0;
}

.contact-subtitle {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--gray-dark);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    font-weight: 500;
    color: var(--gray-dark);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--gray-medium);
    font-weight: 500;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.1);
}

.contact-form textarea {
    resize: vertical;
}

.submit-button {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--primary);
    color: var(--secondary);
    border: 2px solid var(--accent);
    border-radius: var(--radius);
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.submit-button:hover {
    background: var(--accent);
    color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(211, 47, 47, 0.2);
}

/* Footer */
.footer {
    background: var(--primary);
    color: var(--secondary);
    padding: var(--spacing-2xl) 0;
    border-top: 1px solid var(--accent);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.social-links {
    display: flex;
    gap: var(--spacing-lg);
}

.social-link {
    color: var(--secondary);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

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

.social-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

.social-link:hover::after {
    width: 100%;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 1.8rem;
    }

    .hero {
        min-height: 80vh;
        padding: var(--spacing-lg);
    }

    .nav-links {
        gap: var(--spacing-md);
        font-size: 0.9rem;
    }

    .bento-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        grid-auto-rows: 250px;
        gap: var(--spacing-md);
    }

    .grid-item.large {
        grid-column: span 1;
        grid-row: span 1;
    }

    .grid-item.large-wide {
        grid-column: span 1;
        grid-row: span 1;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

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

    .contact-form {
        padding: 0 var(--spacing-md);
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .bento-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 280px;
        gap: var(--spacing-md);
    }

    .grid-item.large {
        grid-column: span 1;
        grid-row: span 1;
    }

    .grid-item.large-wide {
        grid-column: span 1;
        grid-row: span 1;
    }

    .grid-item h3 {
        font-size: 1.2rem;
        margin-bottom: var(--spacing-sm);
    }

    .grid-item p {
        font-size: 0.9rem;
        margin-bottom: var(--spacing-sm);
    }

    .grid-item.featured h3 {
        font-size: 1.5rem;
    }

    .grid-item.featured p {
        font-size: 0.9rem;
    }

    .tag {
        font-size: 0.7rem;
        padding: 3px 10px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }

    .admin-panel {
        width: 100%;
        right: -100%;
    }

    .admin-section h3 {
        font-size: 0.9rem;
    }

    .admin-button {
        font-size: 0.9rem;
        padding: var(--spacing-md);
    }

    .admin-input {
        font-size: 0.9rem;
        padding: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.4rem;
        margin-bottom: var(--spacing-lg);
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .bento-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 280px;
        gap: var(--spacing-sm);
    }

    .grid-item {
        padding: var(--spacing-lg);
        border-radius: 16px;
    }

    .grid-item h3 {
        font-size: 1.15rem;
        margin-bottom: var(--spacing-sm);
        font-weight: 800;
    }

    .grid-item p {
        font-size: 0.95rem;
        margin-bottom: var(--spacing-sm);
        font-weight: 600;
        line-height: 1.5;
    }

    .grid-item.featured h3 {
        font-size: 1.5rem;
        font-weight: 800;
    }

    .grid-item.featured p {
        font-size: 0.95rem;
        font-weight: 600;
    }

    .grid-content {
        gap: var(--spacing-sm);
    }

    .tags {
        gap: 6px;
    }

    .tag {
        font-size: 0.75rem;
        padding: 4px 10px;
        font-weight: 600;
    }

    .stat-number {
        font-size: 2.2rem;
        font-weight: 800;
    }

    .stat-label {
        font-size: 0.95rem;
        letter-spacing: 1px;
        font-weight: 700;
    }

    .submit-button {
        font-size: 1rem;
        font-weight: 700;
        padding: var(--spacing-md);
    }

    .admin-toggle {
        width: 50px;
        height: 50px;
        font-size: 22px;
        top: 15px;
        right: 15px;
    }

    .admin-panel {
        width: 100%;
        right: -100%;
        padding: var(--spacing-lg);
    }

    .admin-panel h2 {
        font-size: 1.3rem;
        margin-bottom: var(--spacing-md);
        font-weight: 800;
    }

    .admin-section {
        margin-bottom: var(--spacing-lg);
        padding-bottom: var(--spacing-lg);
    }

    .admin-section h3 {
        font-size: 0.95rem;
        letter-spacing: 0.5px;
        font-weight: 700;
    }

    .admin-input {
        font-size: 0.95rem;
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
        font-weight: 500;
    }

    .admin-button {
        font-size: 0.9rem;
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
        font-weight: 700;
    }

    .admin-item {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }

    .admin-item-text h4 {
        font-size: 0.9rem;
        font-weight: 700;
    }

    .admin-item-text p {
        font-size: 0.8rem;
        font-weight: 500;
    }

    .admin-item-btn {
        width: 30px;
        height: 30px;
        font-size: 0.85rem;
        font-weight: 700;
    }

    .footer-content {
        padding: 0 var(--spacing-md);
    }

    .contact-form {
        padding: 0;
    }

    .form-group {
        margin-bottom: var(--spacing-md);
    }
}

/* Admin Panel Button */
.admin-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary);
    border: 2px solid var(--accent);
    color: var(--secondary);
    font-size: 24px;
    cursor: pointer;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(196, 28, 59, 0.3);
}

.admin-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(196, 28, 59, 0.5);
}

.admin-toggle.active {
    background: var(--accent);
    color: var(--primary);
}

/* Admin Panel Modal */
.admin-panel {
    position: fixed;
    top: 0;
    right: -400px;
    width: 400px;
    height: 100vh;
    background: var(--secondary);
    border-left: 2px solid var(--accent);
    padding: var(--spacing-lg);
    overflow-y: auto;
    z-index: 1001;
    transition: right 0.3s ease-out;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
}

.admin-panel.open {
    right: 0;
}

.admin-panel h2 {
    margin-bottom: var(--spacing-md);
    color: var(--primary);
    font-size: 1.5rem;
}

.admin-section {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.admin-section:last-child {
    border-bottom: none;
}

.admin-section h3 {
    font-size: 1rem;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.admin-input {
    width: 100%;
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
}

.admin-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.1);
}

.admin-button {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--primary);
    color: var(--secondary);
    border: 2px solid var(--accent);
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: var(--spacing-md);
}

.admin-button:hover {
    background: var(--accent);
    color: var(--primary);
}

.admin-button.delete {
    background: #c41c3b;
    border-color: #c41c3b;
    color: white;
}

.admin-button.delete:hover {
    background: #a01030;
    border-color: #a01030;
}

.admin-item-list {
    max-height: 300px;
    overflow-y: auto;
}

.admin-item {
    padding: var(--spacing-md);
    background: var(--gray-light);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-item-text {
    flex: 1;
}

.admin-item-text h4 {
    font-size: 0.9rem;
    color: var(--primary);
    margin-bottom: 4px;
}

.admin-item-text p {
    font-size: 0.8rem;
    color: var(--gray-medium);
}

.admin-item-btn {
    width: 30px;
    height: 30px;
    border: none;
    background: #d32f2f;
    color: white;
    border-radius: 50%;
    cursor: pointer;
    font-weight: bold;
    transition: var(--transition);
    margin-left: var(--spacing-sm);
}

.admin-item-btn:hover {
    background: #a01030;
    transform: scale(1.1);
}