/* ============================================================
   ROOT VARIABLES - TEMA TK/PAUD CERAH
============================================================ */
:root {
    --tk-yellow: #FFC107;
    --tk-yellow-dark: #E6A800;
    --tk-pink: #FF6B8A;
    --tk-pink-light: #FFE4EB;
    --tk-mint: #4ECDC4;
    --tk-mint-dark: #36B5AD;
    --tk-blue: #60A5FA;
    --tk-blue-light: #DBEAFE;
    --tk-purple: #A78BFA;
    --tk-orange: #FF9800;
    --tk-dark: #2D3748;
    --tk-gray: #718096;
    --tk-bg: #FFF9F5;
    --tk-white: #FFFFFF;
    --tk-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    --tk-shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.10);
    --tk-radius: 24px;
    --tk-radius-sm: 14px;
    --tk-transition: 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ============================================================
   BASE
============================================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Quicksand', sans-serif;
    color: var(--tk-dark);
    background: var(--tk-bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}
a {
    text-decoration: none;
    transition: var(--tk-transition);
}
img {
    max-width: 100%;
    display: block;
}
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f1f1f1; border-radius: 10px; }
::-webkit-scrollbar-thumb { background: var(--tk-yellow); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--tk-yellow-dark); }

/* ============================================================
   TOPBAR
============================================================ */
.top-bar {
    background: var(--tk-dark);
    color: #CBD5E0;
    font-size: 0.8rem;
    padding: 8px 0;
    border-bottom: 3px solid var(--tk-yellow);
}
.top-bar i { color: var(--tk-yellow); }
.top-bar .separator { opacity: 0.3; margin: 0 12px; }

/* ============================================================
   NAVBAR
============================================================ */
.navbar {
    background: rgba(255, 255, 255, 0.92) !important;
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    box-shadow: 0 2px 30px rgba(0, 0, 0, 0.04);
    padding: 14px 0 !important;
    transition: var(--tk-transition);
    border-bottom: 2px solid rgba(255, 193, 7, 0.15);
}
.navbar.scrolled {
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.08);
    padding: 10px 0 !important;
}
.navbar-brand-text {
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
    color: var(--tk-dark);
    white-space: nowrap;
}
.navbar-brand-text span { color: var(--tk-pink); }
.navbar-brand-text small {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--tk-gray);
    display: block;
    margin-top: -4px;
    letter-spacing: 2px;
}
.navbar-nav .nav-link {
    font-weight: 700;
    font-size: 0.95rem;
    color: #4A5568 !important;
    padding: 0.5rem 1rem !important;
    border-radius: 50px;
    transition: var(--tk-transition);
    white-space: nowrap;
    position: relative;
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--tk-pink) !important;
    background: var(--tk-pink-light);
}
.navbar-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 4px;
    background: var(--tk-yellow);
    border-radius: 4px;
}
.dropdown-menu {
    border: none;
    border-radius: var(--tk-radius-sm);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
    padding: 10px 6px;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    margin-top: 6px;
    border: 1px solid rgba(255, 193, 7, 0.15);
}
.dropdown-item {
    border-radius: 10px;
    padding: 10px 18px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--tk-dark);
    transition: var(--tk-transition);
}
.dropdown-item:hover {
    background: var(--tk-pink-light);
    color: var(--tk-pink);
    transform: translateX(4px);
}
.btn-tk-primary {
    background: linear-gradient(135deg, var(--tk-yellow), var(--tk-yellow-dark));
    color: var(--tk-dark);
    border: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.95rem;
    padding: 0.6rem 1.6rem;
    transition: var(--tk-transition);
    box-shadow: 0 4px 16px rgba(255, 193, 7, 0.30);
    white-space: nowrap;
}
.btn-tk-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(255, 193, 7, 0.40);
    color: var(--tk-dark);
}
.btn-tk-pink {
    background: linear-gradient(135deg, var(--tk-pink), #E8536E);
    color: #fff;
    border: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.95rem;
    padding: 0.6rem 1.6rem;
    transition: var(--tk-transition);
    box-shadow: 0 4px 16px rgba(255, 107, 138, 0.30);
    white-space: nowrap;
}
.btn-tk-pink:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(255, 107, 138, 0.40);
    color: #fff;
}
.btn-tk-mint {
    background: linear-gradient(135deg, var(--tk-mint), var(--tk-mint-dark));
    color: #fff;
    border: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.95rem;
    padding: 0.6rem 1.6rem;
    transition: var(--tk-transition);
    box-shadow: 0 4px 16px rgba(78, 205, 196, 0.30);
    white-space: nowrap;
}
.btn-tk-mint:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(78, 205, 196, 0.40);
    color: #fff;
}
.btn-outline-tk {
    border: 2px solid var(--tk-yellow);
    color: var(--tk-white);
    border-radius: 50px;
    font-weight: 700;
    padding: 0.5rem 1.6rem;
    transition: var(--tk-transition);
    background: transparent;
}
.btn-outline-tk:hover {
    background: var(--tk-yellow);
    color: var(--tk-white);
    transform: translateY(-3px);
}

/* ============================================================
   HERO SLIDER
============================================================ */
.hero-slider .carousel-item {
    height: 80vh;
    min-height: 520px;
    background-size: cover;
    background-position: center;
    position: relative;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(45, 55, 72, 0.60) 0%,
            rgba(45, 55, 72, 0.20) 100%);
    z-index: 1;
}
.hero-content {
    position: relative;
    z-index: 2;
    color: #fff;
}
.hero-content .badge {
    background: rgba(255, 193, 7, 0.25) !important;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
}
.hero-content h1 {
    font-weight: 800;
    line-height: 1.2;
    text-shadow: 0 2px 30px rgba(0, 0, 0, 0.15);
}
.hero-content .lead {
    font-weight: 400;
    opacity: 0.95;
    max-width: 540px;
}
.carousel-control-prev,
.carousel-control-next {
    width: 48px;
    height: 48px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    opacity: 0.6;
    transition: var(--tk-transition);
}
.carousel-control-prev:hover,
.carousel-control-next:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.25);
}
.carousel-control-prev { left: 16px; }
.carousel-control-next { right: 16px; }
.carousel-indicators button {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    margin: 0 6px;
    background: rgba(255, 255, 255, 0.40);
    transition: var(--tk-transition);
}
.carousel-indicators button.active {
    background: var(--tk-yellow);
    width: 30px;
    border-radius: 6px;
}

/* ============================================================
   SECTION TITLE
============================================================ */
.section-title {
    font-weight: 800;
    color: var(--tk-dark);
    position: relative;
    margin-bottom: 0.5rem;
}
.section-title .highlight {
    background: linear-gradient(135deg, var(--tk-yellow), var(--tk-orange));
    padding: 0 12px;
    border-radius: 12px;
    color: var(--tk-dark);
    display: inline-block;
}
.section-title .highlight-pink {
    background: linear-gradient(135deg, var(--tk-pink), #E8536E);
    padding: 0 12px;
    border-radius: 12px;
    color: #fff;
    display: inline-block;
}
.section-title .highlight-mint {
    background: linear-gradient(135deg, var(--tk-mint), var(--tk-mint-dark));
    padding: 0 12px;
    border-radius: 12px;
    color: #fff;
    display: inline-block;
}
.section-subtitle {
    color: var(--tk-gray);
    font-size: 1.1rem;
    font-weight: 500;
}

/* ============================================================
   CARDS & COMPONENTS
============================================================ */
.card-tk {
    border: none;
    border-radius: var(--tk-radius);
    overflow: hidden;
    background: var(--tk-white);
    box-shadow: var(--tk-shadow);
    transition: var(--tk-transition);
    height: 100%;
}
.card-tk:hover {
    transform: translateY(-10px);
    box-shadow: var(--tk-shadow-hover);
}
.card-tk img {
    height: 220px;
    object-fit: cover;
    transition: var(--tk-transition);
}
.card-tk:hover img { transform: scale(1.03); }
.card-tk .card-body { padding: 1.8rem 1.6rem; }
.card-tk .card-title {
    font-weight: 700;
    color: var(--tk-dark);
    font-size: 1.15rem;
}

.icon-box {
    background: var(--tk-white);
    padding: 2rem 1.5rem;
    border-radius: var(--tk-radius);
    box-shadow: var(--tk-shadow);
    transition: var(--tk-transition);
    height: 100%;
    text-align: center;
    border: 2px solid transparent;
}
.icon-box:hover {
    transform: translateY(-8px);
    box-shadow: var(--tk-shadow-hover);
    border-color: var(--tk-yellow);
}
.icon-box .icon {
    width: 80px;
    height: 80px;
    background: var(--tk-pink-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--tk-pink);
    margin: 0 auto 1.2rem;
    transition: var(--tk-transition);
}
.icon-box:hover .icon {
    background: var(--tk-pink);
    color: #fff;
    transform: scale(1.05) rotate(-4deg);
}
.icon-box h5 {
    font-weight: 700;
    color: var(--tk-dark);
}
.icon-box p {
    color: var(--tk-gray);
    font-size: 0.92rem;
    margin-bottom: 0;
}

.teacher-card {
    background: var(--tk-white);
    border-radius: var(--tk-radius);
    padding: 1.8rem 1.2rem;
    text-align: center;
    box-shadow: var(--tk-shadow);
    transition: var(--tk-transition);
    height: 100%;
}
.teacher-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--tk-shadow-hover);
}
.teacher-card img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1rem;
    border: 4px solid var(--tk-yellow);
    transition: var(--tk-transition);
}
.teacher-card:hover img {
    border-color: var(--tk-pink);
    transform: scale(1.02);
}
.teacher-card h6 {
    font-weight: 700;
    color: var(--tk-dark);
    margin-bottom: 0.2rem;
}
.teacher-card small {
    color: var(--tk-gray);
    font-weight: 500;
}

.cta-banner-tk {
    background: linear-gradient(135deg, var(--tk-pink), #E8536E);
    border-radius: var(--tk-radius);
    padding: 3.5rem 3rem;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.cta-banner-tk::after {
    content: '🎈';
    position: absolute;
    font-size: 8rem;
    bottom: -20px;
    right: 20px;
    opacity: 0.15;
    pointer-events: none;
}
.cta-banner-tk .btn-outline-light {
    border-radius: 50px;
    padding: 0.65rem 1.8rem;
    font-weight: 700;
    border-width: 2px;
}
.cta-banner-tk .btn-outline-light:hover {
    background: #fff;
    color: var(--tk-pink);
    transform: translateY(-3px);
}

/* ============================================================
   HERO BANNER (halaman dalam)
============================================================ */
.page-hero-tk {
    background: linear-gradient(135deg, var(--tk-yellow), var(--tk-orange));
    color: var(--tk-dark);
    padding: 70px 0 50px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-hero-tk::after {
    content: '🌟';
    position: absolute;
    font-size: 6rem;
    top: -20px;
    right: 20px;
    opacity: 0.15;
}
.page-hero-tk h1 {
    font-weight: 800;
    font-size: 3rem;
    position: relative;
    z-index: 1;
}
.page-hero-tk p {
    font-size: 1.2rem;
    opacity: 0.85;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}
.page-hero-tk .breadcrumb {
    background: transparent;
    padding: 0;
    margin-top: 16px;
    justify-content: center;
    position: relative;
    z-index: 1;
}
.page-hero-tk .breadcrumb-item a {
    color: rgba(45, 55, 72, 0.7);
    text-decoration: none;
    font-weight: 600;
}
.page-hero-tk .breadcrumb-item.active {
    color: var(--tk-dark);
    font-weight: 700;
}
.page-hero-tk .breadcrumb-item+.breadcrumb-item::before {
    color: rgba(45, 55, 72, 0.4);
}

/* ============================================================
   FOOTER
============================================================ */
footer {
    background: var(--tk-dark);
    color: #A0AEC0;
    border-top: 4px solid var(--tk-yellow);
}
footer h4, footer h5 { color: #fff; font-weight: 700; }
footer ul { list-style: none; padding: 0; }
footer ul li { margin-bottom: 0.5rem; }
footer ul li a {
    color: #A0AEC0;
    transition: var(--tk-transition);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
footer ul li a:hover {
    color: var(--tk-yellow);
    transform: translateX(4px);
}
.social-btn-tk {
    width: 42px;
    height: 42px;
    background: rgba(255, 255, 255, 0.06);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-right: 0.4rem;
    transition: var(--tk-transition);
    border: 1px solid rgba(255, 255, 255, 0.06);
}
.social-btn-tk:hover {
    background: var(--tk-yellow);
    color: var(--tk-dark);
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(255, 193, 7, 0.30);
}
footer hr { border-color: rgba(255, 255, 255, 0.06); }
footer .badge-tk {
    background: rgba(255, 193, 7, 0.12) !important;
    color: var(--tk-yellow);
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 50px;
    border: 1px solid rgba(255, 193, 7, 0.15);
}

/* ============================================================
   FLOATING WHATSAPP
============================================================ */
.btn-wa-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    background: linear-gradient(135deg, #25D366, #1EBE5A);
    color: #fff;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.35);
    z-index: 999;
    transition: var(--tk-transition);
    border: none;
}
.btn-wa-float:hover {
    color: #fff;
    transform: scale(1.08) rotate(-4deg);
    box-shadow: 0 10px 40px rgba(37, 211, 102, 0.45);
}

/* ============================================================
   UTILITY
============================================================ */
.bg-soft-yellow { background: rgba(255, 193, 7, 0.06); }
.bg-soft-pink { background: rgba(255, 107, 138, 0.06); }
.bg-soft-mint { background: rgba(78, 205, 196, 0.06); }
.text-tk-pink { color: var(--tk-pink); }
.text-tk-yellow { color: var(--tk-yellow); }

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 991.98px) {
    .hero-slider .carousel-item { height: 70vh; min-height: 400px; }
    .hero-content h1 { font-size: 2.2rem; }
    .cta-banner-tk { padding: 2.5rem 1.8rem; text-align: center; }
    .cta-banner-tk::after { display: none; }
    .navbar-brand-text { font-size: 1.2rem; }
    .navbar { padding: 10px 0 !important; }
    .navbar-nav .nav-link { padding: 0.4rem 0.8rem !important; font-size: 0.9rem; }
    .page-hero-tk { padding: 50px 0 35px; }
    .page-hero-tk h1 { font-size: 2.2rem; }
}
@media (max-width: 575.98px) {
    .hero-slider .carousel-item { height: 55vh; min-height: 320px; }
    .hero-content h1 { font-size: 1.6rem; }
    .hero-content .lead { font-size: 0.9rem; }
    .carousel-control-prev, .carousel-control-next { width: 36px; height: 36px; }
    .section-title { font-size: 1.5rem; }
    .btn-wa-float { width: 50px; height: 50px; font-size: 26px; bottom: 16px; right: 16px; }
    .navbar { padding: 8px 0 !important; }
    .navbar-brand-text { font-size: 1.0rem; }
    .page-hero-tk { padding: 35px 0 25px; }
    .page-hero-tk h1 { font-size: 1.6rem; }
    .page-hero-tk p { font-size: 0.95rem; }
}