/* ==========================================
   1. RESET & VARIABLES
   ========================================== */
:root {
    --primary-blue: #0f3854;
    --accent-blue: #1d70b8;
    --light-blue: #eef6fc;
    --text-dark: #1e293b;
    --text-muted: #64748b;
    --white: #ffffff;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Plus Jakarta Sans', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    color: var(--text-dark);
    background-color: #f8fafc;
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* ==========================================
   2. NAVBAR (TRANSPARENT & STICKY)
   ========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 8%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(15, 56, 84, 0.4);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(15, 56, 84, 0.95);
    padding: 15px 8%;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;           /* PODIUM: Putih Murni */
  letter-spacing: 1px;
  text-decoration: none;
}

.logo span {
  color: rgb(55, 189, 221);  /* ECOSYSTEM: Samakan persis dengan warna terang logo PE */
  font-weight: 700;
}

/* Tambahkan ini untuk memperkecil gambar logonya */
.logo-img {
  height: 36px;           /* Ukuran ideal navbar (bisa diganti 32px - 40px) */
  width: auto;            /* Menjaga proporsi agar tidak gepeng */
  object-fit: contain;
}

.nav-links {
    display: flex;
    gap: 25px;
}

.nav-links a {
    color: var(--white);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    opacity: 0.9;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #60a5fa;
    transition: var(--transition);
}

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

.nav-links a:hover {
    opacity: 1;
    color: #60a5fa;
}

.menu-btn {
    display: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ==========================================
   3. HERO SECTION
   ========================================== */
.hero {
    position: relative;
    min-height: 100vh;
    background: linear-gradient(135deg, rgba(15, 56, 84, 0.9), rgba(10, 30, 48, 0.85)), 
                url('https://images.unsplash.com/photo-1504711434969-e33886168f5c?auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
    display: flex;
    align-items: center;
    padding: 120px 8% 60px;
    color: var(--white);
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 1s ease;
}

.hero-tag {
    display: inline-block;
    background: rgba(96, 165, 250, 0.2);
    border: 1px solid rgba(96, 165, 250, 0.4);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #93c5fd;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    font-weight: 300;
    opacity: 0.9;
    margin-bottom: 35px;
    max-width: 650px;
}

.hero-btns {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 30px;
    border-radius: 6px;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent-blue);
    color: var(--white);
    border: 2px solid var(--accent-blue);
}

.btn-primary:hover {
    background: #155893;
    border-color: #155893;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.4);
}

.btn-outline:hover {
    border-color: var(--white);
    background: rgba(255,255,255,0.1);
    transform: translateY(-2px);
}

/* ==========================================
   4. GLOBAL SECTIONS
   ========================================== */
section {
    padding: 90px 8%;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-subtitle {
    color: var(--accent-blue);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1.5px;
    margin-bottom: 10px;
    display: block;
}

.section-title {
    font-size: 2.3rem;
    color: var(--primary-blue);
    font-weight: 800;
    line-height: 1.3;
}

/* ==========================================
   5. ABOUT SECTION
   ========================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-img {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.about-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: var(--transition);
}

.about-img:hover img {
    transform: scale(1.03);
}

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

/* ==========================================
   6. UNITS / ECOSYSTEM SECTION
   ========================================== */
.ecosystem {
    background: var(--light-blue);
}

.units-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.unit-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.05);
    display: flex;
    flex-direction: column;
}

.unit-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(15, 56, 84, 0.12);
}

.unit-img {
    height: 300px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.unit-img img {
    width: 70%;
    height: 100%;
    object-fit: contain;
    display: block;
    margin: 0 auto;
    transition: var(--transition);
}

.unit-img a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}

.unit-card:hover .unit-img img {
    transform: scale(1.08);
}

.unit-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.unit-badge {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-blue);
    text-transform: uppercase;
    margin-bottom: 8px;
}

.unit-content h3 {
    font-size: 1.4rem;
    color: var(--primary-blue);
    margin-bottom: 12px;
}

.unit-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
    flex-grow: 1;
}

.unit-meta {
    font-size: 0.85rem;
    color: var(--text-dark);
    font-weight: 600;
    border-top: 1px solid #f1f5f9;
    padding-top: 15px;
}

/* ==========================================
   7. VISION, MISSION & VALUES
   ========================================== */
.vmv-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.vmv-box {
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    border-left: 5px solid var(--accent-blue);
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.vmv-box h3 {
    font-size: 1.6rem;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.vmv-box ul {
    margin-top: 15px;
}

.vmv-box li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 12px;
    color: var(--text-muted);
}

.vmv-box li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-blue);
    font-weight: bold;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.value-card {
    background: var(--white);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.03);
    border: 1px solid #f1f5f9;
}

.value-card h4 {
    color: var(--primary-blue);
    font-size: 1.15rem;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.value-card h4 i {
    color: var(--accent-blue);
}

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

/* ==========================================
   8. TIMELINE (ROADMAP)
   ========================================== */
.roadmap {
    background: var(--primary-blue);
    color: var(--white);
}

.roadmap .section-title {
    color: var(--white);
}

.roadmap .section-subtitle {
    color: #60a5fa;
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 3px;
    background: rgba(255,255,255,0.2);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -1.5px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    background: inherit;
    width: 50%;
    box-sizing: border-box; /* Memastikan padding tidak merusak lebar kontainer */
}

/* Titik / Dot Timeline */
.timeline-item::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    right: -8px;
    background-color: var(--accent-blue);
    border: 4px solid var(--primary-blue);
    top: 15px;
    border-radius: 50%;
    z-index: 1;
    transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
    will-change: transform;
}

.left { left: 0; }
.right { left: 50%; }

.right::after { left: -8px; }

/* Kotak Konten */
.content {
    padding: 20px 30px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    border-radius: 8px;
    transition: transform 0.3s ease, background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    will-change: transform;
}

.content h3 {
    font-size: 1.3rem;
    color: #60a5fa;
    margin-bottom: 8px;
}

.content p {
    font-size: 0.95rem;
    opacity: 0.85;
}

/* ==========================================
   HOVER EFFECTS (SAFE & AMAN ELEGAN)
   ========================================== */

/* Efek Kotak saat di-hover (Lebih Terang & Menyala) */
.timeline-item:hover .content {
    background: rgba(255, 255, 255, 0.1); /* Opacity background dinaikkan */
    border-color: #60a5fa;                  /* Garis tepi biru terang penuh */
    transform: translateY(-4px); 
    box-shadow: 0 10px 25px rgba(96, 165, 250, 0.35), 
                0 0 15px rgba(96, 165, 250, 0.25); /* Glow biru di sekeliling box */
}

/* Efek Titik/Dot Menyala saat di-hover */
.timeline-item:hover::after {
    background-color: #60a5fa;
    border-color: #ffffff;
    transform: scale(1.25); /* Skala pembesaran pas tanpa menggeser garis tengah */
    box-shadow: 0 0 10px rgba(96, 165, 250, 0.8), 0 0 20px rgba(96, 165, 250, 0.4);
}

/* ==========================================
   9. FOUNDER SECTION
   ========================================== */
.founder-card {
    background: var(--white);
    border-radius: 12px;
    padding: 40px;
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 40px;
    align-items: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.founder-img {
    width: 100%;
    height: 280px;
    border-radius: 10px;
    overflow: hidden;
}

.founder-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.founder-info h3 {
    font-size: 1.8rem;
    color: var(--primary-blue);
}

.founder-info .role {
    color: var(--accent-blue);
    font-weight: 600;
    margin-bottom: 15px;
    display: block;
}

.founder-info p {
    color: var(--text-muted);
    margin-bottom: 15px;
    font-size: 0.98rem;
}

/* ==========================================
   10. COLLABORATION & CAREER
   ========================================== */
.collab-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.collab-box {
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    border: 1px solid #f1f5f9;
}

.collab-box h3 {
    color: var(--primary-blue);
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.collab-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.tag {
    background: var(--light-blue);
    color: var(--accent-blue);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* ==========================================
   11. FOOTER
   ========================================== */
footer {
    background: #081d2c;
    color: var(--white);
    padding: 70px 8% 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-about p {
    opacity: 0.7;
    margin-top: 15px;
    max-width: 400px;
    font-size: 0.95rem;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #60a5fa;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    opacity: 0.7;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: #60a5fa;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.85rem;
    opacity: 0.6;
}

/* ==========================================
   12. ANIMATIONS & RESPONSIVE
   ========================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 0.99;
        transform: translateY(0);
    }
}

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

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

@media (max-width: 992px) {
    .about-grid, .vmv-container, .collab-grid, .founder-card {
        grid-template-columns: 1fr;
    }
    .hero h1 { font-size: 2.8rem; }
    .timeline::after { left: 31px; }
    .timeline-item { width: 100%; padding-left: 70px; padding-right: 25px; }
    .timeline-item::after { left: 23px; }
    .right { left: 0%; }
}

@media (max-width: 768px) {
    .navbar { padding: 15px 5%; }
    .menu-btn { display: block; }
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--primary-blue);
        flex-direction: column;
        align-items: center;
        padding-top: 40px;
        transition: var(--transition);
    }
    .nav-links.active { left: 0; }
    .hero { padding-left: 5%; padding-right: 5%; }
    section { padding: 60px 5%; }
    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
}

/* ==========================================
   9. FORM KOLABORASI & KARIR (FIXED COLORS)
   ========================================== */
.collab-container {
    max-width: 1100px;
    margin: 0 auto;
}

/* Container Form dibuat ber-background gelap khas Podium */
.collab-form-wrapper {
    margin-top: 40px;
    background: var(--primary-blue, #0f172a); 
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 35px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.form-title {
    font-size: 1.5rem;
    color: #ffffff !important;
    margin-bottom: 8px;
    text-align: center;
}

.form-subtitle {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8) !important;
    text-align: center;
    margin-bottom: 30px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 800px;
    margin: 0 auto;
}

.form-group-row {
    display: flex;
    gap: 15px;
}

.form-group-row input {
    flex: 1;
}

/* Styling Input agar kontras di dalam box gelap */
.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    color: #ffffff !important;
    font-family: inherit;
    font-size: 0.95rem;
    box-sizing: border-box;
    transition: all 0.3s ease;
}

/* Warna placeholder agar terlihat jelas */
.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.contact-form select option {
    background: #0f172a;
    color: #ffffff;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #60a5fa;
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 10px rgba(96, 165, 250, 0.3);
}

/* Captcha Label & Text */
.captcha-wrapper label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.9);
}

.captcha-wrapper span {
    font-weight: 600;
    color: #60a5fa;
}

/* Tombol Submit */
.btn-submit {
    padding: 14px 28px;
    background: #60a5fa;
    color: #0f172a;
    font-weight: 600;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.btn-submit:hover {
    background: #93c5fd;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(96, 165, 250, 0.4);
}

@media (max-width: 768px) {
    .form-group-row {
        flex-direction: column;
    }
}

/* ==========================================
   10. TOMBOL BACK TO TOP (MATCHING NAVBAR COLOR)
   ========================================== */
#backToTop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 45px;
    height: 45px;
    background-color: #0f172a; /* Warna biru gelap menyatu dengan navbar */
    color: #60a5fa; /* Warna panah biru terang */
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    z-index: 999;
}

/* Muncul saat di-scroll ke bawah */
#backToTop.show {
    opacity: 1;
    visibility: visible;
}

/* Efek Hover */
#backToTop:hover {
    background-color: #1e293b;
    color: #ffffff;
    transform: translateY(-4px);
    box-shadow: 0 6px 16px rgba(96, 165, 250, 0.3);
}

/* Penyesuaian Posisi di HP */
@media (max-width: 768px) {
    #backToTop {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }
}