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

:root {
    --primary: #2d6a4f;
    --primary-dark: #1b4332;
    --primary-light: #52b788;
    --accent: #95d5b2;
    --dark: #1b2a1f;
    --gray: #52796f;
    --light: #f0f7f4;
    --border: #d8e9e0;
    --white: #ffffff;
    --radius: 16px;
    --shadow: 0 4px 24px rgba(45, 106, 79, 0.08);
    --shadow-lg: 0 12px 40px rgba(45, 106, 79, 0.12);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--dark);
    line-height: 1.7;
    background: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Navigation ===== */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

#navbar.scrolled {
    border-bottom-color: var(--border);
    box-shadow: 0 2px 12px rgba(45, 106, 79, 0.04);
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 18px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--dark);
    text-decoration: none;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-badge {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    letter-spacing: 0.02em;
    flex-shrink: 0;
}

.logo-text {
    font-weight: 700;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 80px 24px 40px;
    background: linear-gradient(135deg, #e8f5e9 0%, #d8f3dc 50%, #c8e6c9 100%);
    position: relative;
    overflow: hidden;
}

.clover {
    position: absolute;
    font-size: 2rem;
    opacity: 0.3;
    animation: float 6s ease-in-out infinite;
}

.clover-1 { top: 15%; left: 8%; font-size: 2.5rem; animation-delay: 0s; }
.clover-2 { top: 25%; right: 10%; font-size: 1.8rem; animation-delay: 1.5s; }
.clover-3 { bottom: 20%; left: 12%; font-size: 2rem; animation-delay: 3s; }
.clover-4 { bottom: 15%; right: 8%; font-size: 2.2rem; animation-delay: 2s; }

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(10deg); }
}

.hero-content {
    max-width: 640px;
    animation: fadeInUp 0.8s ease;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
    color: var(--dark);
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--gray);
    margin-bottom: 36px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 14px 32px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.25s ease;
    display: inline-block;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(45, 106, 79, 0.3);
}

.btn-secondary {
    background: var(--white);
    color: var(--dark);
    border: 1px solid var(--border);
}

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

.scroll-indicator {
    margin-top: 60px;
}

.scroll-indicator span {
    display: block;
    width: 24px;
    height: 24px;
    border: 2px solid var(--gray);
    border-radius: 50%;
    margin: 0 auto;
    position: relative;
    opacity: 0.4;
    animation: bounce 2s infinite;
}

/* ===== Section Titles ===== */
.section-title {
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    text-align: center;
    color: var(--gray);
    font-size: 1.05rem;
    margin-bottom: 48px;
}

/* ===== About ===== */
.about {
    padding: 100px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 48px;
    align-items: center;
}

.about-text p {
    margin-bottom: 18px;
    color: var(--gray);
    font-size: 1.05rem;
}

.about-card {
    background: var(--light);
    border-radius: var(--radius);
    padding: 40px 32px;
    text-align: center;
    box-shadow: var(--shadow);
}

.about-avatar-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 20px;
    display: block;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.about-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.about-role {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.about-interests {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.about-interests span {
    font-size: 0.85rem;
    background: var(--white);
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid var(--border);
}

/* ===== Blog ===== */
.blog {
    padding: 100px 0;
    background: var(--light);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 28px;
}

.blog-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: var(--shadow);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.blog-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.blog-date {
    font-size: 0.8rem;
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.blog-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.blog-card p {
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.blog-link {
    text-decoration: none;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.blog-link:hover {
    color: var(--primary-dark);
}

/* ===== Contact ===== */
.contact {
    padding: 100px 0;
}

.contact-links {
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    background: var(--light);
    border-radius: var(--radius);
    padding: 36px 48px;
    text-decoration: none;
    color: var(--dark);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    min-width: 240px;
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.contact-icon {
    font-size: 2rem;
}

.contact-label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-value {
    font-weight: 600;
    color: var(--dark);
}

/* ===== Footer ===== */
footer {
    padding: 40px 0;
    background: var(--dark);
    color: var(--gray);
    text-align: center;
}

footer p {
    font-size: 0.9rem;
}

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

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 64px;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-200%);
        transition: transform 0.3s ease;
    }

    .nav-links.open {
        transform: translateY(0);
    }

    .nav-toggle {
        display: flex;
    }

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

    .hero-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 280px;
        margin: 0 auto;
    }

    .btn {
        text-align: center;
    }
}