/* Import font Poppins untuk Contact dan Skills Section */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

/* Global Variables */
:root {
    /* Main Theme Colors */
    --body-bg: #1e1f26; /* Latar belakang utama halaman */
    --section-bg: #1e1e1e; /* Latar belakang untuk kotak konten setiap section */
    --text-primary: #e0e0e0; /* Warna teks utama terang */
    --text-secondary: #d0e1f9; /* Warna teks sekunder (biru muda) */
    --text-light: #b0b0b0; /* Warna teks lebih terang/subtle */
    --text-dark: #a0a0a0; /* Warna teks gelap/untuk detail kecil */
    --accent-yellow: #ffd54f; /* Warna aksen kuning (hover nav) */
    --border-main: #3a3a3a; /* Warna border umum */
    --shadow-main: rgba(0,0,0,0.6); /* Warna shadow umum */

    /* Contact Section Specific */
    --contact-primary-green: #283655; /* Variabel untuk warna aksen biru */
    --contact-card-bg: #2b2b2b; /* Background kartu kontak */
    --contact-border-color: #3a3a3a; /* Border kartu kontak */

    /* Skills Section Specific */
    /* --skills-section-bg: var(--section-bg); <-- Ini dihapus/diubah */
    --tab-inactive-bg: #2b2b2b;
    --tab-border: #444;
    --tab-active-bg: #4d648d; /* Warna ungu/biru gelap untuk tab aktif, disesuaikan */
    --skill-card-bg: #2b2b2b; /* Background kartu skill */
    --skill-card-border: #444; /* Border kartu skill */
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--body-bg); /* Latar belakang keseluruhan halaman */
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s ease;
}

/* Estetik: Custom Scrollbar untuk tampilan yang lebih mulus di browser modern */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: #2a2a2a;
    border-radius: 5px;
}
::-webkit-scrollbar-thumb {
    background: #555;
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: #777;
}

/* Estetik: Gaya seleksi teks */
::selection {
    background-color: var(--accent-yellow);
    color: var(--body-bg);
}
::-moz-selection {
    background-color: var(--accent-yellow);
    color: var(--body-bg);
}

/* Fullscreen Hero Section */
#hero {
  height: 100vh;
  background: linear-gradient(135deg, #1e1f26, #283655);
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  text-align: center;
  position: relative;
  padding: 0 20px;
  overflow: hidden;
}

.hero-content {
  max-width: 700px;
  color: var(--text-secondary);
  animation: fadeIn 1.5s ease;
}

#hero h1 {
  font-size: 60px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 2px;
}

#hero p {
  font-size: 22px;
  color: var(--text-light);
  margin-bottom: 40px;
  font-style: italic;
}

.hero-btn {
  padding: 12px 28px;
  font-size: 16px;
  color: #fff;
  background-color: var(--tab-active-bg);
  border: none;
  border-radius: 25px;
  text-decoration: none;
  font-family: 'Poppins', sans-serif;
  letter-spacing: 1px;
  transition: background-color 0.3s ease, transform 0.2s ease;
  box-shadow: 0 4px 15px rgba(0,0,0,0.4);
}

.hero-btn:hover {
  background-color: #5f82c2;
  transform: translateY(-2px);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}


/* Header/Navbar Styles */
header {
  background: linear-gradient(135deg, #283655, #4d648d);
  color: #fff;
  padding: 20px 0;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.8);
  position: sticky;
  top: 0;
  z-index: 1000;
}

header h1 {
    font-size: 36px;
    margin-bottom: 10px;
    letter-spacing: 1.5px;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}

nav {
  margin-top: 10px;
}

nav a {
  margin: 0 15px;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  font-size: 17px;
  transition: color 0.3s ease, transform 0.2s ease;
  position: relative;
}

/* Estetik: Efek underline saat hover */
nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent-yellow);
    transition: width 0.3s ease-out;
}

nav a:hover::after {
    width: 100%;
}

nav a:hover {
  color: var(--accent-yellow);
  transform: translateY(-2px);
}

/* General Section Content Styles (Kotak konten yang menonjol) */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-content {
    margin: 40px auto;
    padding: 40px 25px; /* Padding vertikal dan horizontal konsisten */
    background: var(--section-bg); /* Latar belakang kotak konten */
    border-radius: 12px;
    box-shadow: 0 6px 20px var(--shadow-main);
    text-align: center;
    border: 1px solid var(--border-main);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.section-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.8);
}


.section-content h2 {
  margin: 20px 0 15px;
  color: #fff; /* Warna putih */
  font-size: 32px;
  letter-spacing: 1px;
}

.section-content p {
  margin-bottom: 15px;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.8;
}

.profile-pic {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 25px;
    border: 4px solid var(--text-secondary);
    box-shadow: 0 0 15px rgba(208, 225, 249, 0.3);
}

/* Contact Section Specific Styles */
.contact-section-content {
    margin: 40px auto; /* Margin vertikal konsisten antar section */
    padding: 40px 25px; /* Padding vertikal dan horizontal konsisten */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background-color: var(--section-bg); /* Latar belakang kotak konten */
    border-radius: 12px;
    box-shadow: 0 6px 20px var(--shadow-main);
    border: 1px solid var(--border-main);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-section-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.8);
}

.contact-section-content h1 {
    font-family: 'Poppins', sans-serif;
    font-size: 44px;
    font-weight: 700;
    margin-bottom: 35px;
    color: #fff;
    letter-spacing: 2px;
    text-shadow: 1px 1px 5px rgba(0,0,0,0.4);
}

.contact-header {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
    position: relative;
    padding-left: 55px;
}

.contact-line {
    width: 40px;
    height: 3px;
    background-color: var(--contact-primary-green);
    position: absolute;
    left: 50%;
    transform: translateX(-100%);
    margin-left: -15px;
    border-radius: 2px;
}

.contact-header h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 18px;
    font-weight: 400;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.contact-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 25px;
    justify-content: center;
    width: 100%;
    padding: 0 20px;
}

.card {
    background-color: var(--contact-card-bg);
    border: 1px solid var(--contact-border-color);
    border-radius: 10px;
    padding: 30px;
    flex: 1;
    min-width: 280px;
    max-width: 48%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.4);
}

.card:hover {
    transform: translateY(-8px);
    border-color: var(--contact-primary-green);
    box-shadow: 0 8px 25px #4d648d;
}

.card-icon {
    width: 65px;
    height: 65px;
    background-color: #4d648d;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 25px;
    transition: background-color 0.3s ease;
}

.card:hover .card-icon {
    background-color: #4d648d;
}

.card-icon i {
    font-size: 30px;
    color: var(--contact-primary-green);
}

.card h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #fff;
    letter-spacing: 0.5px;
}

.social-links a {
    color: var(--text-light);
    font-size: 26px;
    margin: 0 12px;
    transition: color 0.3s ease, transform 0.2s ease;
}

.social-links a:hover {
    color: var(--contact-primary-green);
    transform: scale(1.1);
}

.email-address {
    font-family: 'Poppins', sans-serif;
    font-size: 17px;
    font-weight: 400;
    color: var(--text-primary);
}

/* Footer Styles (Menggunakan gradient yang sama dengan header untuk konsistensi) */
footer {
  background: linear-gradient(135deg, #283655, #4d648d);
  color: #fff;
  text-align: center;
  padding: 20px 10px;
  font-size: 14px;
  margin-top: auto;
  border-top: 1px solid #2f2f2f;
  box-shadow: 0 -2px 8px rgba(0,0,0,0.7);
}

/* Reveal Animation Styles */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.reveal-visible {
  opacity: 1;
  transform: none;
}

/* Skills Section Specific Styles (Tampilan background dan container mengikuti tampilan About Me) */
#skills {
    background-color: var(--body-bg); /* <--- PERUBAHAN DI SINI: Latar belakang section skill sama dengan body */
    padding: 70px 0;
    text-align: center;
}

.skill-section-content {
    margin: 40px auto; /* Margin vertikal konsisten antar section */
    padding: 40px 25px; /* Padding vertikal dan horizontal konsisten */
    max-width: 900px;
    background: var(--section-bg); /* Latar belakang kotak konten skill, agar menonjol dari body */
    border-radius: 12px;
    box-shadow: 0 6px 20px var(--shadow-main);
    border: 1px solid var(--border-main);
}


#skills h2 {
    font-size: 36px;
    color: #fff;
    margin-bottom: 10px;
    font-family: 'Poppins', sans-serif;
    letter-spacing: 1.5px;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}

.skill-subtitle {
    font-size: 17px;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.6;
}

.skill-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 35px;
    flex-wrap: wrap;
}

.skill-tab {
    background-color: var(--tab-inactive-bg);
    border: 1px solid var(--tab-border);
    padding: 10px 22px;
    border-radius: 25px;
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease, background-color 0.4s ease;
    outline: none;
    font-family: 'Poppins', sans-serif;
    letter-spacing: 0.5px;
}

.skill-tab:hover {
    background-color: #383838;
    border-color: #777;
    transform: translateY(-2px);
}

.skill-tab.active {
    background-color: var(--tab-active-bg);
    border-color: var(--tab-active-bg);
    color: #fff;
    box-shadow: 0 4px 10px rgba(77, 100, 141, 0.5);
    transform: translateY(-2px);
}

.skill-description-text {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 45px;
    font-style: italic;
    min-height: 25px;
    font-family: 'Poppins', sans-serif;
}

.skill-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    justify-content: center;
}

.skill-card {
    background-color: var(--skill-card-bg);
    border: 1px solid var(--skill-card-border);
    border-radius: 10px;
    padding: 22px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.4);
}

.skill-card:hover {
    transform: translateY(-7px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.6);
    border-color: var(--tab-active-bg);
}

.skill-card .skill-icon {
    font-size: 48px;
    color: var(--tab-active-bg);
    width: 50px;
    text-align: center;
    flex-shrink: 0;
    text-shadow: 0 0 10px rgba(77, 100, 141, 0.4);
}

.skill-info h3 {
    font-size: 19px;
    color: var(--card-text-color);
    margin-bottom: 5px;
    text-align: left;
    font-family: 'Poppins', sans-serif;
    letter-spacing: 0.5px;
}

.skill-info p {
    font-size: 14px;
    color: var(--text-dark);
    text-align: left;
    font-family: 'Poppins', sans-serif;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    header h1 {
        font-size: 30px;
    }

    nav a {
        margin: 0 10px;
        font-size: 14px;
    }

    .section-content,
    .contact-section-content,
    .skill-section-content { /* Konsisten di responsive */
        margin: 30px 10px;
        padding: 25px 15px 30px;
    }

    .section-content h2 {
        font-size: 28px;
    }

    .contact-section-content h1 {
        font-size: 38px;
    }

    .contact-cards {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

    .card {
        max-width: 90%;
        min-width: unset;
        width: 100%;
        padding: 25px;
    }

    .contact-header {
        padding-left: 45px;
    }
    .contact-line {
        width: 30px;
        margin-left: -10px;
    }
    .contact-header h2 {
        font-size: 16px;
    }

    /* Skills Responsive */
    #skills h2 {
        font-size: 32px;
    }
    .skill-subtitle {
        font-size: 16px;
    }
    .skill-tabs {
        flex-direction: column;
        align-items: center;
    }
    .skill-tab {
        width: 80%;
        max-width: 250px;
    }
    .skill-cards-grid {
        grid-template-columns: 1fr;
        padding: 0 10px;
    }
    .skill-card {
        flex-direction: row;
        justify-content: flex-start;
    }
    .skill-card .skill-icon {
        font-size: 40px;
        width: 40px;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 24px;
    }
    nav {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
    }
    nav a {
        margin: 5px 8px;
    }

    .section-content,
    .contact-section-content,
    .skill-section-content { /* Konsisten di responsive */
        margin: 20px 5px;
        padding: 20px 10px 25px;
    }

    .contact-section-content h1 {
        font-size: 30px;
    }

    .card {
        padding: 20px;
    }

    .card h3 {
        font-size: 18px;
    }

    .social-links a {
        font-size: 20px;
    }

    .email-address {
        font-size: 16px;
    }

    /* Skills Responsive */
    #skills {
        padding: 40px 0;
    }
    #skills h2 {
        font-size: 28px;
    }
    .skill-subtitle {
        font-size: 14px;
    }
    .skill-tab {
        padding: 10px 20px;
        font-size: 15px;
    }
    .skill-card {
        padding: 15px;
        gap: 10px;
    }
    .skill-card .skill-icon {
        font-size: 35px;
        width: 35px;
    }
    .skill-info h3 {
        font-size: 16px;
    }
    .skill-info p {
        font-size: 13px;
    }
}

/* Resume Section Styling */
.resume-section {
  margin-top: 30px;
  text-align: left;
}

.resume-title {
  font-family: 'Poppins', sans-serif;
  font-size: 22px;
  color: var(--text-secondary);
  margin-bottom: 15px;
  border-left: 4px solid var(--tab-active-bg);
  padding-left: 12px;
}

.resume-item {
  margin-bottom: 25px;
  font-size: 16px;
  color: var(--text-primary);
  line-height: 1.7;
  padding-left: 10px;
}

.project-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 25px;
  justify-content: center;
}

.project-card {
  background-color: var(--skill-card-bg);
  border: 1px solid var(--skill-card-border);
  border-radius: 12px;
  overflow: hidden;
  max-width: 350px;
  width: 100%;
  box-shadow: 0 4px 15px rgba(0,0,0,0.4);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.6);
}

.project-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.project-info {
  padding: 15px;
}

.project-info h4 {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.project-info p {
  font-size: 14px;
  color: var(--text-dark);
  line-height: 1.6;
}

/* Konsistensi Tampilan Judul Section Utama */
.section-content h1,
.contact-section-content h1,
.skill-section-content h1 {
  font-family: 'Poppins', sans-serif;
  font-size: 44px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 2px;
  margin-bottom: 35px;
  text-align: center;
  text-shadow: 1px 1px 5px rgba(0,0,0,0.4);
}