@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@700;800;900&family=Work+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

/* =========================================
   1. RESET & BASE
   ========================================= */
:root{
    /* Brand Canta Colors */
    --canta-navy: #000052;
    --canta-red: #a31621;
    --canta-black: #000000;
    --canta-white: #ffffff;

    /* Theme Variables Mapped to Dark Mode */
    --primary: #ffffff; /* Teks dan Heading utama di background gelap */
    --secondary: #A31621; /* Warna aksen utama (Merah) */
    --dark: #000000; /* Background dasar */
    --text: #ffffff; /* Teks reguler terang */
    --light: #1a1a1a; /* Background untuk Card / Area sekunder */
    --text-light: #cccccc; /* Warna teks abu-abu untuk deskripsi */
}

/* =========================================
   BRAND TYPOGRAPHY
========================================= */
:root{
    --font-heading: 'Gotham', 'Montserrat', sans-serif;
    --font-body: 'Work Sans', sans-serif;
}

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

body { 
    font-family: var(--font-body);
    color: var(--text-light); /* Diubah agar cocok di background gelap */
    line-height: 1.7;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    background: var(--dark); /* Background Hitam Solid */
}

img{
    max-width: 100%;
    display: block;
}

.container { 
    width: 100%;
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 0 20px; 
}

.mt-50 {
    margin-top: 50px;
}

.mt-20 {
    margin-top: 20px;
}

.text-center {
    text-align: center;
}

.bg-light {
    background-color: var(--canta-navy); /* Diubah dari terang ke Navy */
    padding: 80px 0;
}

section {
    padding: 80px 0;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--primary);
    margin-top: 0;
}

.section-title {
    font-size: 2.4rem;
    text-align: center;
    margin-bottom: 50px;
    text-transform: uppercase;
    font-weight: 800;
    letter-spacing: 1px;
}

p{
    margin-top: 0;
}

/* =========================================
   BUTTONS
   ========================================= */
.btn {
    padding: 13px 28px;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 700;
    display: inline-block;
    margin: 5px;
    transition: 0.3s ease;
    cursor: pointer;
    border: none;
    font-family: var(--font-body);
}

.btn-primary {
    background: var(--secondary); /* Merah Canta */
    color: #fff;
}

.btn-secondary {
    background: var(--canta-navy); /* Navy Canta */
    color: #fff;
}

.btn:hover {
    opacity: 0.9;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(163,22,33,0.3);
}

/* =========================================
   2. HEADER
   ========================================= */
.site-header { 
    background: rgba(0, 0, 0, 0.9); /* Hitam transparan */
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.5); 
    position: sticky; 
    top: 0; 
    z-index: 100; 
    width: 100%;
}

.header-flex { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    min-height: 80px; 
    flex-wrap: nowrap; 
}

.site-logo {
    flex: 0 0 auto;
    max-width: 200px; 
    display: flex;
    align-items: center;
}

.site-logo img {
    width: 100%;
    height: auto;
    max-height: 60px; 
    object-fit: contain; 
}

.main-navigation {
    flex: 1;
    display: flex;
    justify-content: flex-end; 
    align-items: center;
}

.main-navigation ul { 
    list-style: none; 
    display: flex; 
    flex-wrap: wrap; 
    gap: 30px; 
    margin: 0; 
    padding: 0; 
}

.main-navigation a {
    font-family: var(--font-heading);
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
}

.main-navigation a:hover {
    color: var(--secondary);
}

.mobile-menu-toggle { 
    display: none; 
    font-size: 28px; 
    cursor: pointer; 
    color: var(--primary);
}

/* =========================================
   3. HERO SECTION
   ========================================= */
.hero-section {
    background: linear-gradient(135deg, #000000 0%, #000052 100%); /* Hitam ke Navy */
    position: relative;
    padding: 100px 0;
}

.hero-flex {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.8rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
    color: var(--primary);
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light); /* Dari #555 */
    max-width: 600px;
}

.hero-image-wrapper {
    flex: 1;
    display: flex;
    justify-content: center;
}

.animated-instrument {
    max-width: 100%;
    height: auto;
}

/* =========================================
   4. GLOBAL GRID
   ========================================= */
.grid-4-cols {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.grid-2-cols {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

/* =========================================
   5. COURSE CARD
   ========================================= */
.course-card {
    background: var(--light); /* Dari #fff ke #1a1a1a */
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    transition: 0.3s ease;
    border: 1px solid rgba(255,255,255,0.05); /* Border terang */
    overflow: hidden;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 35px rgba(163,22,33,0.15); /* Bayangan merah */
    border-color: var(--secondary);
}

.course-card img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    border-radius: 14px;
    margin-bottom: 20px;
}

.placeholder-img {
    width: 100%;
    height: 240px;
    border-radius: 14px;
    background: rgba(255,255,255,0.05); /* Dari #eee */
    margin-bottom: 20px;
}

.course-card h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
    font-family: var(--font-heading);
    font-weight: 700;
}

.course-meta {
    background: #242424; /* Dari #f8f9fa */
    padding: 15px;
    border-radius: 12px;
    font-size: 0.92rem;
    line-height: 1.8;
    color: var(--text-light); /* Dari #666 */
    margin-bottom: 20px;
}

.course-meta span {
    display: block;
}

/* =========================================
   6. FEATURE SECTION
   ========================================= */
.course-features-grid{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card{
    background: var(--light); /* Gelap */
    padding: 35px 30px;
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    transition: 0.3s ease;
    border: 1px solid rgba(255,255,255,0.05);
    position: relative;
    overflow: hidden;
}

.feature-card::before{
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--canta-navy), var(--secondary));
}

.feature-card:hover{
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(163,22,33,0.1);
}

.feature-icon{
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--secondary);
}

.feature-card h3{
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--primary);
}

.feature-card p{
    color: var(--text-light);
    line-height: 1.8;
    font-size: 0.96rem;
}

/* =========================================
   7. ABOUT SECTION
   ========================================= */
.vm-box {
    background: var(--light);
    padding: 35px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.05);
}

.vm-box ul {
    padding-left: 20px;
}

.vm-box li {
    margin-bottom: 10px;
    color: var(--text-light);
}

/* =========================================
   8. FOUNDERS SECTION
   ========================================= */
.founders-section{
    position: relative;
}

/* =========================================
   FOUNDERS LIST
   ========================================= */
.founders-list{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    align-items: stretch;
}

/* =========================================
   FOUNDER ITEM
   ========================================= */
.founder-item{
    background: var(--light);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    transition: 0.3s ease;
    display: flex;
    flex-direction: row;
    align-items: stretch;
    min-height: 320px;
    border: 1px solid rgba(255,255,255,0.05);
}

.founder-item:hover{
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(163,22,33,0.15);
    border-color: var(--secondary);
}

/* =========================================
   FOUNDER IMAGE
   ========================================= */
.founder-image{
    width: 42%;
    min-width: 42%;
    position: relative;
    overflow: hidden;
    background: #242424; /* Dari #eee */
}

.founder-image img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.4s ease;
}

.founder-item:hover .founder-image img{
    transform: scale(1.05);
}

.founder-placeholder{
    width: 100%;
    height: 100%;
    min-height: 320px;
    background: rgba(255,255,255,0.05);
}

/* =========================================
   FOUNDER CONTENT
   ========================================= */
.founder-content{
    width: 58%;
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.founder-content h3{
    font-size: 1.5rem;
    margin-bottom: 10px;
    line-height: 1.3;
    color: var(--primary);
}

.founder-role{
    color: var(--secondary);
    font-weight: 700;
    margin-bottom: 18px;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
}

.founder-description{
    color: var(--text-light);
    line-height: 1.8;
    font-size: 0.95rem;
    margin-bottom: 25px;
}

.founder-btn{
    margin-top: auto;
    width: fit-content;
    min-width: 160px;
    text-align: center;
}

/* =========================================
   9. TEACHERS SECTION
   ========================================= */
.profile-card {
    background: var(--light);
    border-radius: 24px;
    padding: 35px 25px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    text-align: center;
    transition: all 0.4s ease;
    border: 1px solid rgba(255,255,255,0.05);
}

.profile-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(163,22,33,0.15);
    border-color: var(--secondary);
}

.profile-img-wrap {
    width: 180px;
    height: 180px;
    margin: 0 auto 25px;
    border-radius: 50%;
    overflow: hidden;
    border: 5px solid #242424;
    box-shadow: 0 5px 15px rgba(0,0,0,0.5);
}

.profile-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.4s ease;
}

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

.profile-card h3 {
    margin-bottom: 8px;
    font-size: 1.3rem;
}

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

/* =========================================
   10. EVENTS SECTION
   ========================================= */
.event-box{
    background: var(--light);
    padding: 40px;
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.05);
}

/* =========================================
   11. FORM WRAPPER
   ========================================= */
.form-wrapper{
    background: var(--light);
    padding: 40px;
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.05);
}

/* =========================================
   12. SHOP SECTION
   ========================================= */
.product-card{
    background: var(--light);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    transition: 0.3s ease;
    border: 1px solid rgba(255,255,255,0.05);
}

.product-card:hover{
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(163,22,33,0.15);
    border-color: var(--secondary);
}

.product-card h4{
    margin-bottom: 20px;
}

/* =========================================
   13. FOOTER
   ========================================= */
.site-footer {
    background: var(--canta-navy); /* Navy Canta */
    color: #fff;
    padding: 70px 0 20px;
}

.site-footer a {
    color: var(--secondary);
    text-decoration: none;
}

.site-copyright {
    margin-top: 50px;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    font-size: 0.9rem;
    color: #ccc;
}

.footer-logo {
    display: block;
    margin-bottom: 25px;
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 25px;
}

.soc-link { 
    background: rgba(255,255,255,0.1); 
    padding: 10px 20px; 
    border-radius: 10px; 
    transition: 0.3s; 
    font-size: 0.9rem;
    font-weight: 600;
}

.soc-link:hover {
    background: var(--secondary);
    color: #fff !important;
    transform: translateY(-3px);
}

/* =========================================
   14. SINGLE FOUNDER
   ========================================= */
.single-founder-section{
    padding: 80px 0;
}

.single-founder-wrapper{
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 60px;
    align-items: center;
}

.single-founder-image img{
    width: 100%;
    border-radius: 24px;
    object-fit: cover;
}

.single-founder-title{
    font-size: 3rem;
    margin-bottom: 15px;
    line-height: 1.2;
}

.single-founder-role{
    color: var(--secondary);
    font-weight: 700;
    margin-bottom: 25px;
    font-size: 1.1rem;
}

.single-founder-text{
    line-height: 1.9;
    color: var(--text-light);
    font-size: 1rem;
}

/* =========================================
   15. TABLET RESPONSIVE
   ========================================= */
@media (max-width: 1024px){
    .main-navigation ul{
        gap: 18px;
    }

    .hero-title{
        font-family: var(--font-heading);
        font-size: 4.5rem;
        font-weight: 900;
        line-height: 1.1;
        letter-spacing: -2px;
    }

    .course-features-grid{
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-4-cols{
        grid-template-columns: repeat(2, 1fr);
    }
}

/* =========================================
   16. MOBILE MENU
   ========================================= */
@media (max-width: 992px){
    .header-flex{
        min-height: 70px;
    }

    .site-logo{
        max-width: 160px;
    }

    .main-navigation{
        display: none;
        width: 100%;
        position: absolute;
        top: 100%;
        left: 0;
        background: #1a1a1a; /* Background menu mobile diubah gelap */
        box-shadow: 0 10px 15px rgba(0,0,0,0.5);
        padding: 20px 0;
        border-top: 1px solid #333; /* Border transisi */
    }

    .main-navigation.active{
        display: block;
    }

    .main-navigation ul{
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .mobile-menu-toggle{
        display: flex;
        align-items: center;
        justify-content: center;
        width: 42px;
        height: 42px;
        background: rgba(255,255,255,0.1); /* Diubah dari #f5f5f5 */
        border-radius: 8px;
    }

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

    .hero-content{
        order: 2;
    }

    .hero-image-wrapper{
        order: 1;
    }

    .hero-title{
        font-size: 2.5rem;
    }

    .hero-subtitle{
        font-family: var(--font-body);
        font-size: 1.15rem;
        font-weight: 400;
        line-height: 1.9;
    }

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

    .single-founder-wrapper{
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* =========================================
   17. MOBILE RESPONSIVE
   ========================================= */
@media (max-width: 768px){
    section{
        padding: 70px 0;
    }

    .section-title{
        font-size: 2rem;
        margin-bottom: 35px;
    }

    .grid-4-cols{
        grid-template-columns: 1fr;
    }

    .grid-2-cols{
        grid-template-columns: 1fr;
    }

    .course-features-grid{
        grid-template-columns: 1fr;
    }

    .feature-card{
        padding: 28px 24px;
    }

    .hero-title{
        font-size: 2.1rem;
    }

    .hero-subtitle{
        font-size: 1rem;
    }

    .founder-image img{
        height: 320px;
    }

    .single-founder-title{
        font-size: 2rem;
    }

    .profile-img-wrap{
        width: 150px;
        height: 150px;
    }

    .course-card,
    .profile-card,
    .founder-card,
    .product-card,
    .vm-box,
    .event-box,
    .form-wrapper{
        padding: 22px;
    }
}

/* =========================================
   18. SMALL MOBILE
   ========================================= */
@media (max-width: 480px){
    .container{
        padding: 0 16px;
    }

    .hero-title{
        font-size: 1.8rem;
    }

    .btn{
        width: 100%;
        text-align: center;
    }

    .action-buttons{
        display: flex;
        flex-direction: column;
    }

    .founder-image img{
        height: 260px;
    }
}