/* ==========================================================================
   Website kangsob.id — Dr. Muhammad Sobirin, M.M.Pd
   Edukator · Master Trainer BNSP · Konsultan Tata Kelola
   ========================================================================== */

:root {
  /* Color Palette */
  --color-primary: #0F4C4C;         /* Deep Pine Green */
  --color-primary-dark: #0A3636;    /* Dark Forest Emerald */
  --color-primary-light: #166464;
  --color-gold: #C9A227;            /* Elegant Accent Gold */
  --color-gold-hover: #DDB93C;      /* Vibrant Gold Hover */
  --color-gold-dark: #7D620A;       /* Deep Bronze Gold for Text */
  --color-gold-soft: #FFFBEF;       /* Warm Gold Highlight Box */
  
  --color-bg: #FAF6EE;              /* Warm Cream Canvas */
  --color-bg-sand: #F1EADB;         /* Muted Sand for Lapak */
  --color-white: #FFFFFF;
  
  --color-text-main: #12302F;       /* Dark Teal Slate */
  --color-text-muted: #4A6361;      /* Secondary Muted Teal */
  --color-text-light: #E8E1CF;      /* Warm Light for Dark Sections */
  --color-text-dim: #C9BFA6;
  
  --color-border: #DCD3BE;          /* Warm Subtle Border */
  --color-border-gold: rgba(201, 162, 39, 0.4);
  
  /* Typography */
  --font-serif: 'Source Serif 4', Georgia, Cambria, serif;
  --font-sans: 'Carlito', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  
  /* Layout */
  --container-max: 1200px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --shadow-sm: 0 1px 3px rgba(15, 76, 76, 0.08);
  --shadow-md: 0 4px 12px rgba(15, 76, 76, 0.1);
  --shadow-lg: 0 8px 24px rgba(10, 54, 54, 0.14);
}

/* Base & Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text-main);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 3px;
}

/* Typography Helpers */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--color-primary);
  font-weight: 700;
  text-wrap: balance;
}

.kicker {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold-dark);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 17px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
  text-align: center;
  user-select: none;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 15px;
}

.btn-gold {
  background: var(--color-gold);
  color: var(--color-primary-dark) !important;
  border-color: var(--color-gold);
}

.btn-gold:hover {
  background: var(--color-gold-hover) !important;
  border-color: var(--color-gold-hover) !important;
  color: var(--color-primary-dark) !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(201, 162, 39, 0.35);
}

.btn-line-dark {
  background: transparent;
  color: var(--color-primary) !important;
  border: 2px solid var(--color-primary);
}

.btn-line-dark:hover {
  background: var(--color-primary) !important;
  color: var(--color-bg) !important;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn-line {
  background: transparent;
  color: var(--color-bg) !important;
  border: 2px solid var(--color-bg);
}

.btn-line:hover {
  background: rgba(250, 246, 238, 0.12) !important;
  color: var(--color-bg) !important;
}

@media (prefers-reduced-motion: reduce) {
  .btn, .card, .btn-gold {
    transition: none !important;
    transform: none !important;
  }
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 246, 238, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(220, 211, 190, 0.6);
  transition: background var(--transition-normal);
}

.header-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-primary);
  text-decoration: none;
}

.brand-text {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px 28px;
  font-size: 16px;
  list-style: none;
}

.nav-link {
  color: var(--color-text-main);
  text-decoration: none;
  padding: 8px 4px;
  font-weight: 500;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: width var(--transition-fast);
}

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

/* Mobile Toggle */
.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--color-primary);
}

/* Containers & Sections */
.section-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 72px 32px 24px;
}

/* Hero Section */
.hero-section {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 40px 32px 72px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 48px;
}

.hero-content {
  flex: 1 1 520px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.hero-title {
  font-size: clamp(34px, 4.5vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero-desc {
  font-size: 20px;
  line-height: 1.55;
  color: var(--color-text-muted);
  max-width: 580px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  padding-top: 8px;
}

.hero-visual {
  flex: 1 1 360px;
  min-width: 0;
  max-width: 460px;
  margin: 0 auto;
  position: relative;
}

.hero-card {
  background: var(--color-primary);
  border-radius: var(--radius-md);
  padding: 26px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.hero-ornament {
  position: absolute;
  right: -50px;
  top: -50px;
  width: 260px;
  height: 260px;
  opacity: 0.35;
  pointer-events: none;
}

.hero-photo {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-gold);
}

.hero-badge {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 18px;
  color: var(--color-bg);
}

.hero-badge-text {
  font-size: 15px;
  line-height: 1.35;
  font-weight: 500;
}

/* Credibility Section */
.credibility-section {
  background: var(--color-primary-dark);
  color: var(--color-bg);
}

.credibility-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 48px 32px;
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.pillars-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 28px 48px;
}

.pillar-col {
  flex: 1 1 240px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.pillar-title {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 600;
  color: var(--color-gold);
}

.pillar-desc {
  font-size: 16px;
  color: var(--color-text-light);
}

.trust-box {
  border-top: 1px solid var(--color-border-gold);
  padding-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.trust-title {
  font-size: 14px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-light);
  font-weight: 700;
}

.partner-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.partner-item {
  flex: 1 1 200px;
  min-width: 0;
  border: 1px dashed var(--color-gold);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
  font-size: 15px;
  color: var(--color-text-light);
  background: rgba(201, 162, 39, 0.05);
}

.trust-caption {
  font-size: 13px;
  color: var(--color-text-dim);
}

/* Persona Section */
.persona-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 32px;
}

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.card-title {
  font-size: 26px;
  font-weight: 600;
}

.card-desc {
  color: var(--color-text-muted);
  flex-grow: 1;
}

.card-link {
  font-weight: 700;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.card-link:hover {
  color: var(--color-primary-dark);
}

/* Layanan Grid */
.layanan-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin-top: 32px;
}

.layanan-col {
  flex: 1 1 480px;
  min-width: 0;
  border-top: 3px solid var(--color-gold);
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.layanan-title {
  font-size: 26px;
  font-weight: 600;
}

.layanan-text {
  color: var(--color-text-muted);
}

.layanan-label {
  color: var(--color-text-main);
  font-weight: 700;
}

/* Lapak / Pricing Section */
.lapak-section {
  background: var(--color-bg-sand);
  margin-top: 72px;
  padding: 88px 32px;
}

.lapak-container {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.lapak-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: stretch;
}

.lapak-card {
  flex: 1 1 320px;
  min-width: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.lapak-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.lapak-card-featured {
  background: var(--color-primary);
  color: var(--color-bg);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.lapak-card-featured h3 {
  color: var(--color-bg);
}

.lapak-card-featured p {
  color: var(--color-text-light);
}

.price-tag {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
}

.lapak-card-featured .price-tag {
  color: var(--color-gold);
}

/* Kerja Sama Section */
.steps-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 32px;
}

.step-col {
  flex: 1 1 240px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.step-num {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--color-primary);
}

.case-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 20px;
}

.case-card {
  flex: 1 1 320px;
  min-width: 0;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.banner-profile {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--color-gold);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  background: var(--color-gold-soft);
  margin-top: 24px;
}

/* Tulisan Section */
.articles-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 32px;
}

.article-item {
  flex: 1 1 320px;
  min-width: 0;
  text-decoration: none;
  color: var(--color-text-main);
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform var(--transition-fast);
}

.article-item:hover {
  transform: translateY(-2px);
}

.article-title {
  font-family: var(--font-serif);
  font-size: 24px;
  line-height: 1.25;
  font-weight: 600;
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.article-item:hover .article-title {
  color: var(--color-gold-dark);
}

/* Social Cards */
.social-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 32px;
}

.social-card {
  flex: 1 1 240px;
  min-width: 0;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Testimoni Section */
.testimoni-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  margin-top: 32px;
}

.testimoni-card {
  flex: 1 1 400px;
  min-width: 0;
  margin: 0;
  border-left: 4px solid var(--color-gold);
  padding: 8px 0 8px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.testimoni-quote {
  font-family: var(--font-serif);
  font-size: 22px;
  line-height: 1.45;
  font-style: italic;
  color: var(--color-text-main);
}

.testimoni-author {
  font-size: 16px;
  color: var(--color-text-muted);
}

/* Newsletter / Surat */
.surat-section {
  background: var(--color-primary);
  color: var(--color-bg);
  margin-top: 72px;
}

.surat-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 72px 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 32px 56px;
  align-items: center;
}

.surat-col {
  flex: 1 1 400px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.surat-title {
  font-size: clamp(28px, 3.5vw, 36px);
  color: var(--color-bg);
}

.surat-desc {
  color: var(--color-text-light);
  font-size: 18px;
}

.subscribe-form {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.subscribe-input {
  flex: 1 1 240px;
  min-width: 0;
  font: inherit;
  font-size: 17px;
  padding: 14px 18px;
  border: 2px solid var(--color-gold);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text-main);
}

.subscribe-input::placeholder {
  color: #7A908E;
}

/* Contact / Call to Action */
.contact-section {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 96px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.contact-title {
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.15;
  max-width: 780px;
}

.contact-desc {
  font-size: 20px;
  color: var(--color-text-muted);
  max-width: 580px;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  padding-top: 8px;
}

.contact-details {
  font-size: 17px;
  color: var(--color-text-main);
  padding-top: 10px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px 24px;
}

.copy-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(15, 76, 76, 0.08);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid rgba(15, 76, 76, 0.15);
  transition: all var(--transition-fast);
}

.copy-badge:hover {
  background: rgba(201, 162, 39, 0.2);
  border-color: var(--color-gold);
}

/* Footer */
.site-footer {
  background: var(--color-primary-dark);
  color: var(--color-text-light);
  border-top: 1px solid rgba(201, 162, 39, 0.2);
}

.footer-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 36px 32px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px 32px;
  font-size: 15px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
}

.footer-links a {
  color: var(--color-text-light);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-gold);
}

/* Toast Notification */
.toast-notice {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  background: var(--color-primary-dark);
  color: var(--color-bg);
  border: 1px solid var(--color-gold);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  box-shadow: var(--shadow-lg);
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast-notice.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* Floating WhatsApp Quick Action */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 99;
  background: #25D366;
  color: #FFFFFF !important;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.45);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.whatsapp-float:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

/* Responsive Breakpoints */
@media (max-width: 900px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 73px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 32px;
    gap: 16px;
    border-bottom: 2px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    display: none;
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-menu .btn {
    width: 100%;
    margin-top: 8px;
  }

  .hero-section {
    padding-top: 24px;
    gap: 36px;
  }
}

@media (max-width: 600px) {
  .header-container,
  .hero-section,
  .section-container,
  .lapak-section,
  .surat-container,
  .contact-section,
  .footer-container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .btn {
    width: 100%;
  }

  .hero-actions,
  .contact-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .whatsapp-float {
    bottom: 16px;
    left: 16px;
    width: 48px;
    height: 48px;
  }
}