/* global.css — Ivory & Ink Design System */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Ink — primary dark */
  --ink-900: #1A1F2E;       /* teks utama, navbar CTA bg */
  --ink-700: #2C3444;       /* hover state gelap */
  --ink-500: #4A5568;       /* teks sekunder */
  --ink-300: #8896A8;       /* teks muted, label */

  /* Gold — satu-satunya accent, gunakan hemat */
  --gold-500: #C8A96E;
  --gold-300: #E8D5A3;      /* dekorasi quote, elemen subtle */
  --gold-100: #F5EDD6;      /* background tag/badge */

  /* Surface — backgrounds */
  --surface-base: #FDFAF5;  /* background utama semua halaman */
  --surface-soft: #F5F0E8;  /* section alternatif */
  --surface-muted: #EDE8DE; /* elemen tertier */

  /* Text */
  --text-primary:   #1A1F2E;
  --text-secondary: #4A5568;
  --text-muted:     #8896A8;
  --text-inverse:   #FDFAF5;

  /* Border */
  --border:        rgba(26,31,46,0.10);
  --border-strong: rgba(26,31,46,0.20);

  /* Spacing & Layout */
  --max-width:       1200px;
  --max-width-prose: 720px;   /* teks panjang, philosophy, bio */
  --section-gap:     6rem;    /* desktop */
  --section-gap-sm:  4rem;    /* mobile */
  --card-radius:     2px;     /* sengaja kecil — anti AI-slop */
  --button-radius:   9999px;

  /* Typography */
  --font-display: 'Poppins', sans-serif;
  --font-body:    'Inter', sans-serif;
  
  /* Compatibility Aliases for scripts/HTML pages */
  --color-slate-900: #1A1F2E;
  --color-slate-700: #2C3444;
  --color-slate-500: #4A5568;
  --color-slate-300: #8896A8;
  --color-slate-100: #EDE8DE;
  --color-sage-700: #A08045;
  --color-sage-500: #C8A96E;
  --color-sage-300: #E8D5A3;
  --color-sage-100: #F5EDD6;
  --color-surface-base: #FDFAF5;
  --color-surface-soft: #F5F0E8;
  --color-surface-muted: #EDE8DE;
  --color-text-primary: #1A1F2E;
  --color-text-secondary: #4A5568;
  --color-text-muted: #8896A8;
  --color-text-inverse: #FDFAF5;
  --color-border-default: rgba(26, 31, 46, 0.1);
  --color-border-strong: rgba(26, 31, 46, 0.22);
}

/* Base Body Styles */
html {
  background-color: #1A1F2E; /* matches footer bg-slate-900, eliminates white gap below footer on mobile */
}

body {
  font-family: var(--font-body);
  background-color: var(--surface-base);
  color: var(--text-primary);
  font-weight: 300; /* Inter 300 */
  font-size: 1rem;
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Base Typography Rules */
h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3rem, 6vw, 5.5rem);
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 4vw, 3.5rem);
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.5rem;
  color: var(--text-primary);
}

strong {
  font-weight: 600;
}

/* Eyebrow Label */
.label-eyebrow {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--gold-500);
}

html {
  scroll-behavior: smooth;
}

/* Navigation Links */
.nav-link {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}
.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}
.nav-link.active {
  border-bottom: 2px solid var(--gold-500);
  font-weight: 700;
}

/* Buttons */
.btn-primary {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  background-color: var(--ink-900);
  color: var(--text-inverse);
  padding: 14px 32px;
  border-radius: var(--button-radius);
  transition: background-color 0.2s ease;
  border: none;
}
.btn-primary:hover {
  background-color: var(--ink-700);
}

.btn-secondary {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  background-color: transparent;
  color: var(--text-primary);
  padding: 14px 32px;
  border: 1px solid var(--border-strong);
  border-radius: var(--button-radius);
  transition: background-color 0.2s ease;
}

/* Ukuran tombol lebih kecil khusus navbar */
.btn-sm {
  padding: 12px 18px;
  font-size: 13px;
}

.btn-secondary:hover {
  background-color: var(--color-surface-muted);
}

/* Cards */
.card-elegant {
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: 24px;
  background-color: var(--surface-base);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.card-elegant:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

/* Divider */
hr.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}

/* Section Spacing */
.section-padding {
  padding-top: var(--section-gap-sm);
  padding-bottom: var(--section-gap-sm);
}
@media (min-width: 1024px) {
  .section-padding {
    padding-top: var(--section-gap);
    padding-bottom: var(--section-gap);
  }
}

/* ─── Scroll Reveal Animation (DESIGN.md Section 4) ─── */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-reveal].visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal-delay="1"] { transition-delay: 80ms; }
[data-reveal-delay="2"] { transition-delay: 160ms; }
[data-reveal-delay="3"] { transition-delay: 240ms; }
[data-reveal-delay="4"] { transition-delay: 320ms; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ─── Slide-out Drawer (DESIGN.md Section 3) ─── */
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(26, 31, 46, 0.3);
  backdrop-filter: blur(4px);
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
}
.drawer-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.drawer-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -45%) scale(0.95);
  width: min(800px, 95vw);
  max-height: 90vh;
  background-color: var(--surface-base);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
  z-index: 100;
  border-radius: 8px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.3s;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.drawer-panel.active {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
  visibility: visible;
}

/* Accordion transition for solutions (DESIGN.md Section 3) */
.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.accordion-item {
  border-bottom: 1px solid var(--border);
}

/* Toast Notification Styles */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 150;
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
}
.toast-item {
  background-color: var(--ink-900);
  color: var(--text-inverse);
  padding: 14px 20px;
  border-radius: 2px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  font-family: var(--font-body);
  font-weight: 300;
  border: 1px solid var(--border);
  pointer-events: auto;
  transform-origin: bottom center;
  animation: toastEnter 0.5s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}
.toast-item.toast-exit {
  animation: toastExit 0.4s cubic-bezier(0.4, 0, 1, 1) forwards;
}
.toast-item i {
  color: var(--gold-500);
  font-size: 18px;
}
@keyframes toastEnter {
  from { opacity: 0; transform: translateY(24px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes toastExit {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to { opacity: 0; transform: translateY(12px) scale(0.95); }
}

/* Swiper Styles */
.swiper {
  width: 100%;
  height: 100%;
  border-radius: 2px;
}
.swiper-button-next, .swiper-button-prev {
  color: var(--text-inverse) !important;
  background-color: rgba(26, 31, 46, 0.3);
  backdrop-filter: blur(8px);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  transition: all 0.3s ease;
}
.swiper-button-next:hover, .swiper-button-prev:hover {
  background-color: rgba(26, 31, 46, 0.6);
}
.swiper-button-next::after, .swiper-button-prev::after {
  font-size: 16px !important;
}
.swiper-pagination-bullet {
  background-color: var(--text-inverse) !important;
  opacity: 0.5;
  width: 12px;
  height: 12px;
}
.swiper-pagination-bullet-active {
  background-color: var(--gold-500) !important;
  opacity: 1;
}