/* RESET & BASE STYLES */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Palet Warna Modern Elegan */
    --color-primary: #000B29; /* Biru Tua Hampir Hitam */
    --color-accent: #B58C3D; /* Emas Lembut/Mustard */
    --color-light: #F8F8F8; /* Abu-abu Sangat Terang */
    --color-text-dark: #1C1C1C;
    --color-text-light: #FFFFFF;
    --font-primary: 'Inter', sans-serif;
    --spacing-unit: 1rem;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--color-text-dark);
    background-color: var(--color-light);
}

/* LAYOUT UTILITY */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0; /* Padding vertikal besar untuk whitespace elegan */
}

.bg-light {
    background-color: var(--color-light);
}

/* TYPOGRAPHY */
.heading-xl {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-unit);
}

.heading-lg {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    text-align: center;
}

.text-lead {
    font-size: 1.25rem;
    color: #555;
    margin-bottom: 2rem;
}

/* BUTTONS */
.btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    border-color: var(--color-primary);
}

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

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: var(--color-text-light);
}

/* HEADER & NAVIGASI */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 4rem;
    position: sticky;
    top: 0;
    background-color: rgba(255, 255, 255, 0.95); /* Sedikit transparansi */
    z-index: 1000;
    box-shadow: 0 1px 10px rgba(0, 0, 0, 0.05); /* Shadow halus */
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
}

.nav a {
    text-decoration: none;
    color: var(--color-text-dark);
    margin-left: 2rem;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
    position: relative;
}

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

/* HERO SECTION */
.hero-section {
    display: flex;
    align-items: center;
    min-height: 90vh;
    padding-top: 5rem;
    gap: 4rem;
}

.hero-content {
    flex: 2;
}

.hero-image {
    flex: 1;
}

.hero-image img {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 8px; /* Sudut halus */
    object-fit: cover;
    display: block;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.social-links {
    margin-top: 1.5rem;
}

.social-links a {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-right: 1.5rem;
    transition: color 0.3s ease;
}

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

/* ABOUT SECTION */
.about-grid {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 3rem;
    align-items: center;
    text-align: left;
}

.stats-box {
    display: flex;
    justify-content: space-around;
    padding: 2rem;
    border-left: 3px solid var(--color-accent);
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
}

.stat-label {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #555;
}

/* SKILLS SECTION */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.skill-card {
    background: var(--color-text-light);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.skill-icon {
    font-size: 3rem;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.skill-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

/* PROJECTS SECTION */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--color-text-light);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.project-card:hover {
    transform: translateY(-8px);
}

.project-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    display: block;
}

.project-info {
    padding: 1.5rem;
}

.project-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.project-tech {
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: 1rem;
}

.link-small {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 0.9rem;
    margin-right: 1rem;
}

/* CONTACT SECTION */
.contact-content {
    text-align: center;
    max-width: 600px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-family: inherit;
}

.contact-form textarea {
    resize: vertical;
}

/* FOOTER */
.footer {
    text-align: center;
    padding: 2rem;
    background-color: var(--color-primary);
    color: var(--color-text-light);
    font-size: 0.85rem;
}