/* === FONDASI DESAIN & PALET WARNA BARU === */
:root {
  /* Palet Warna Utama */
  --tk-blue: #00b4d8;
  --tk-pink: #f48fb1;
  --tk-orange: #ff7c18;
  --tk-purple: #b97bd9;
  --tk-yellow: #ff9e00;
  --tk-green: #28a745;
  --tk-dark-blue: #0249bf;
  --tk-red: #cc1e32;
  --tk-yellow-soft: #f2cc49;

  /* Variabel Pendukung */
  --font-heading: "Poppins", sans-serif;
  --font-body: "Nunito Sans", sans-serif;
  --primary-text: #13294b;
  --secondary-text: #4a5568;
  --background-light: #fdfefe;
  --background-soft: #f0f6ff;
  --background-grey: #f8f9fa;
  --footer-bg: #1a2c47;
  --white: #ffffff;
  --black: #000000;

  /* Variabel Transparansi (Pengganti RGBA) */
  --white-90-opacity: rgba(255, 255, 255, 0.9);
  --white-85-opacity: rgba(255, 255, 255, 0.85);
  --white-70-opacity: rgba(255, 255, 255, 0.7);
  --white-50-opacity: rgba(255, 255, 255, 0.5);
  --white-20-opacity: rgba(255, 255, 255, 0.2);
  --white-10-opacity: rgba(255, 255, 255, 0.1);

  --black-20-opacity: rgba(0, 0, 0, 0.2);
  --black-15-opacity: rgba(0, 0, 0, 0.15);
  --black-10-opacity: rgba(0, 0, 0, 0.1);
  --black-08-opacity: rgba(0, 0, 0, 0.08);

  /* Gradasi Aksen */
  --accent-orange: linear-gradient(
    135deg,
    var(--tk-orange) 0%,
    var(--tk-yellow) 100%
  );
  --accent-purple: linear-gradient(135deg, #b97bd9 0%, #a86cc7 100%);
  --accent-blue: linear-gradient(135deg, #00b4d8 0%, #0096c7 100%);
}

/* === PENGATURAN DASAR & FIX === */
* {
  box-sizing: border-box;
}

html {
  overflow-y: scroll;
}

body {
  font-family: var(--font-body);
  background-color: var(--background-light);
  color: var(--secondary-text);
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: var(--primary-text);
  font-weight: 700;
}

/* === NAVBAR === */
.navbar {
  background-color: var(--white-90-opacity);
  backdrop-filter: blur(1rem);
}
.logo {
  max-height: 3.125rem;
}
.nav-link {
  font-weight: 600;
  color: var(--primary-text) !important;
  padding: 0.5rem 1rem;
  border-radius: 0.75rem;
  transition: all 0.3s ease;
}
.nav-link:hover,
.nav-link.active {
  background: var(--accent-blue);
  color: var(--white) !important;
}
.dropdown-menu {
  border: none;
  box-shadow: 0 0.625rem 1.875rem var(--black-08-opacity);
  border-radius: 1rem;
  padding: 0.5rem;
}
.dropdown-item {
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  transition: all 0.2s ease;
}
.dropdown-item:hover {
  background: var(--accent-blue);
  color: var(--white);
  transform: translateX(5px);
}

/* === HERO SECTION === */
.hero-section {
  padding: 2rem 0;
  background: var(--tk-blue);
  color: var(--white);
  margin-top: 4rem;
}
.hero-title {
  color: var(--white);
  text-shadow: 0 2px 10px var(--black-20-opacity);
}
.hero-subtitle {
  color: var(--white-90-opacity);
}
.carousel-inner img {
  /* aspect-ratio: 4/5; */
  object-fit: cover;
}
.btn-primary-custom {
  background-color: var(--tk-yellow);
  color: var(--white);
  font-weight: 700;
  padding: 0.8rem 1.75rem;
  transition: all 0.3s ease;
  border: none;
}
.btn-primary-custom:hover {
  background-color: var(--tk-orange);
  transform: translateY(-2px);
}
.btn-secondary-custom {
  background-color: var(--white-20-opacity);
  color: var(--white);
  font-weight: 700;
  padding: 0.8rem 1.75rem;
  border: 1px solid var(--white);
  transition: all 0.3s ease;
}
.btn-secondary-custom:hover {
  background-color: var(--white);
  color: var(--tk-blue);
  transform: translateY(-2px);
}

/* === FEATURES SECTION (TATA NILAI) === */
.features-section {
  padding: 5rem 0;
  background-color: var(--background-light);
}
.section-title {
  color: var(--primary-text);
}
.section-subtitle {
  color: var(--secondary-text);
}
.feature-card {
  background-color: var(--background-grey);
  padding: 2rem;
  border-radius: 1.5rem;
  text-align: center;
  border: 2px solid transparent;
  transition: all 0.3s ease;
  height: 100%;
}
.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 1.25rem 2.5rem var(--black-08-opacity);
  border-color: var(--tk-orange);
}
.feature-icon {
  width: 4.375rem;
  height: 4.375rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--white);
  margin: 0 auto 1.5rem auto;
  box-shadow: 0 4px 12px var(--black-15-opacity);
}

.feature-icon img {
  width: 65%;
  height: 65%;
  object-fit: contain;
}

.feature-title {
  font-size: 1.4rem;
  margin-bottom: 0.75rem;
  color: var(--primary-text);
}
.feature-text {
  color: var(--secondary-text);
}

/* Aplikasi Palet Warna Baru pada Ikon Tata Nilai */
.icon-nilai-jujur {
  background-color: var(--tk-blue);
}
.icon-nilai-peduli {
  background-color: var(--tk-pink);
}
.icon-nilai-kerjakeras {
  background-color: var(--tk-orange);
}
.icon-nilai-terbuka {
  background-color: var(--tk-green);
}
.icon-nilai-prioritas {
  background-color: var(--tk-yellow);
}
.icon-nilai-proaktif {
  background-color: var(--tk-purple);
}
.icon-nilai-kerjasama {
  background-color: var(--tk-dark-blue);
}

/* === SENTRA & VIDEO SECTION === */
.sentra-video-section {
  background-color: var(--background-soft);
  padding: 5rem 0;
}
.sentra-badge {
  font-size: 0.9rem;
  font-weight: 700;
  padding: 0.6rem 1.2rem;
  border-radius: 99px;
  color: var(--white);
  box-shadow: 0 2px 8px var(--black-10-opacity);
}
.badge-bahan-alam {
  background-color: var(--tk-dark-blue);
}
.badge-seni {
  background-color: var(--tk-yellow-soft);
}
.badge-balok {
  background-color: var(--tk-red);
}
.badge-persiapan {
  background-color: var(--tk-orange);
}
.badge-imtaq {
  background-color: var(--tk-green);
}
.badge-peran {
  background-color: var(--tk-dark-blue);
}
.badge-memasak {
  background-color: var(--tk-orange);
}

.cta-section {
  padding: 5rem 0;
  background: var(--accent-orange);
}
.cta-title,
.cta-subtitle {
  color: var(--white);
}

/* Tombol Utama (Aksi Primer) */
.btn-light-custom {
  background-color: var(--white);
  color: var(--tk-orange);
  font-weight: 700;
  padding: 1rem 2.5rem;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}
.btn-light-custom:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px var(--black-20-opacity);
  background-color: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}

/* Tombol Baru (Aksi Sekunder) */
.btn-outline-light-custom {
  background-color: transparent;
  color: var(--white);
  font-weight: 700;
  padding: 1rem 2.5rem;
  transition: all 0.3s ease;
  border: 2px solid var(--white);
}
.btn-outline-light-custom:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px var(--black-20-opacity);
  background-color: var(--white);
  color: var(--tk-orange);
}

/* === FOOTER === */
.footer-section {
  background-color: var(--footer-bg);
  color: var(--white-70-opacity);
}
.footer-logo {
  max-height: 4.375rem;
  background-color: var(--white);
  border-radius: 0.75rem;
  padding: 0.625rem;
  box-shadow: 0 4px 10px var(--black-20-opacity);
  transition: transform 0.3s ease;
}
.footer-logo:hover {
  transform: scale(1.05);
}
.footer-title {
  color: var(--white);
  margin-bottom: 1rem;
}
.footer-text {
  color: var(--white-70-opacity);
}
.footer-foundation-title {
  font-size: 0.9rem;
  color: var(--white-50-opacity);
  margin-bottom: 0.25rem;
}
.foundation-link {
  color: var(--white);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px dotted var(--white-50-opacity);
  transition: color 0.3s ease;
}
.foundation-link:hover {
  color: var(--tk-orange);
}
.footer-links li {
  margin-bottom: 0.5rem;
}
.footer-links a {
  color: var(--white-70-opacity);
  text-decoration: none;
  transition: color 0.3s, padding-left 0.3s;
}
.footer-links a:hover {
  color: var(--tk-orange);
  padding-left: 5px;
}
.footer-contact li {
  display: flex;
  align-items: flex-start;
  margin-bottom: 0.75rem;
}
.footer-contact i {
  margin-right: 0.75rem;
  margin-top: 5px;
  color: var(--tk-orange);
}
.footer-contact a {
  color: var(--white-70-opacity);
}
.social-icon {
  width: 2.5rem;
  height: 2.5rem;
  background-color: var(--white-10-opacity);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  text-decoration: none;
  transition: all 0.3s ease;
}
.social-icon:hover {
  background-color: var(--tk-orange);
  transform: translateY(-3px);
}

.footer-divider {
  border-top: 1px solid var(--white-20-opacity);
  margin: 2rem 0 1rem 0;
}
.footer-copyright {
  font-size: 0.9rem;
  color: var(--white-50-opacity);
}