/* ==========================================================================
   ASIA EXPEDITIONS — LIGHT EDITORIAL MINIMALIST DESIGN SYSTEM
   Inspired by User Reference Mockup
   Background: Clean Crisp White & Soft Slate
   Accent Colors: #028781 (Teal) & #f4ae56 (Warm Amber)
   Typography: Inter Display Bold
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,300..900;1,14..32,300..900&display=swap');

:root {
  --color-teal: #028781;
  --color-teal-hover: #026f6a;
  --color-teal-light: #e6f3f3;
  --color-teal-glow: rgba(2, 135, 129, 0.2);

  --color-amber: #f4ae56;
  --color-amber-hover: #e0993e;
  --color-amber-light: #fef6ec;
  --color-amber-glow: rgba(244, 174, 86, 0.25);

  --bg-page: #FFFFFF;
  --bg-subtle: #F8FAFC;
  --bg-card: #FFFFFF;
  
  --text-headline: #0F172A;
  --text-body: #334155;
  --text-muted: #64748B;
  --text-subtle: #94A3B8;

  --border-light: #E2E8F0;
  --border-focus: #028781;

  --font-inter: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-inter);
  background-color: var(--bg-page);
  color: var(--text-body);
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
}

body {
  overflow-x: hidden;
  background-color: var(--bg-page);
  color: var(--text-body);
}

/* Inter Display Bold Heading Classes */
.font-display {
  font-family: var(--font-inter);
  font-optical-sizing: auto;
  font-variation-settings: 'opsz' 32;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-headline);
}

/* Sharp Crisp Image Rendering */
img {
  image-rendering: -webkit-optimize-contrast;
  image-rendering: auto;
}

.hero-slide img {
  filter: contrast(108%) brightness(96%) saturate(108%);
  transform: translateZ(0);
  backface-visibility: hidden;
}

.clean-card img {
  filter: contrast(104%) saturate(105%);
  image-rendering: -webkit-optimize-contrast;
}

.font-display-heavy {
  font-family: var(--font-inter);
  font-optical-sizing: auto;
  font-variation-settings: 'opsz' 32;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--text-headline);
}

/* Minimalist Light Card */
.clean-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: 20px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.clean-card:hover {
  transform: translateY(-4px);
  border-color: rgba(2, 135, 129, 0.4);
  box-shadow: 0 20px 35px -10px rgba(15, 23, 42, 0.08), 0 0 20px -5px var(--color-teal-glow);
}

/* Reference Signature Card Style (Matching User's Uploaded Image) */
.signature-card {
  border-radius: 18px;
  overflow: hidden;
  background: #FFFFFF;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
}

.signature-card:hover {
  transform: translateY(-5px);
}

.signature-card:hover img {
  transform: scale(1.06);
}

.signature-card img {
  border-radius: 18px;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Complexity Indicator */
.complexity-bar {
  display: inline-flex;
  gap: 3px;
  align-items: center;
}

.complexity-segment {
  width: 14px;
  height: 4px;
  border-radius: 2px;
  background: #E2E8F0;
  transition: all 0.2s;
}

.complexity-segment.active {
  background: var(--color-amber);
}

/* Custom Scrollbar for Light Theme */
::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}
::-webkit-scrollbar-track {
  background: #F1F5F9;
}
::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-teal);
}

/* Filter Tabs */
.filter-tab {
  background: #F1F5F9;
  color: #475569;
  border: 1px solid transparent;
  transition: all 0.2s;
}

.filter-tab:hover {
  background: #E2E8F0;
  color: #0F172A;
}

.filter-tab.active {
  background: var(--color-teal) !important;
  color: #FFFFFF !important;
  box-shadow: 0 4px 12px var(--color-teal-glow);
}

/* Accordion */
details summary::-webkit-details-marker {
  display: none;
}
details[open] summary .accordion-chevron {
  transform: rotate(180deg);
}

/* Modal Animation */
@keyframes cleanFadeIn {
  from {
    opacity: 0;
    transform: scale(0.98) translateY(12px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-clean-enter {
  animation: cleanFadeIn 0.22s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}