/* =============================================
   GRYIP — Design System
   GRY Institute of Pharmacy, Borawan
   ============================================= */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

/* =============================================
   CSS Custom Properties (Design Tokens)
   ============================================= */
:root {
  /* Colors */
  --color-primary:      #0D5C6E;
  --color-primary-dark: #09404D;
  --color-primary-light:#1A7A90;
  --color-accent:       #E6A817;
  --color-accent-dark:  #C48E10;
  --color-accent-light: #F5C842;
  --color-dark:         #1A1A2E;
  --color-light-bg:     #F8F5F0;
  --color-surface:      #FFFFFF;
  --color-muted:        #6B7280;
  --color-muted-light:  #9CA3AF;
  --color-border:       #E5E7EB;
  --color-border-light: #F3F4F6;
  --color-success:      #10B981;
  --color-text:         #374151;
  --color-heading:      #111827;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #0D5C6E 0%, #09404D 100%);
  --gradient-accent:  linear-gradient(135deg, #E6A817 0%, #C48E10 100%);
  --gradient-hero:    linear-gradient(180deg, rgba(9,64,77,0.82) 0%, rgba(9,64,77,0.55) 60%, rgba(9,64,77,0.75) 100%);

  /* Typography */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;

  /* Font Sizes (fluid) */
  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;
  --text-6xl:  3.75rem;

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Border Radius */
  --radius-sm:   0.25rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.75rem;
  --radius-xl:   1rem;
  --radius-2xl:  1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.10), 0 2px 6px rgba(0,0,0,0.07);
  --shadow-lg:  0 10px 40px rgba(0,0,0,0.12), 0 4px 12px rgba(0,0,0,0.08);
  --shadow-xl:  0 20px 60px rgba(0,0,0,0.15), 0 8px 20px rgba(0,0,0,0.10);
  --shadow-primary: 0 8px 30px rgba(13,92,110,0.25);
  --shadow-accent:  0 8px 30px rgba(230,168,23,0.30);

  /* Transitions */
  --transition-fast:   all 0.15s ease;
  --transition-base:   all 0.25s ease;
  --transition-slow:   all 0.40s ease;
  --transition-bounce: all 0.30s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --container-max: 1280px;
  --container-pad: clamp(1rem, 5vw, 2rem);
  --section-pad:   clamp(3rem, 8vw, 6rem);
  --navbar-h:      72px;
  --topbar-h:      44px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-surface);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-base);
}

ul, ol { list-style: none; }

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: var(--font-body);
  font-size: var(--text-base);
}

/* =============================================
   Typography
   ============================================= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-heading);
  line-height: 1.25;
  font-weight: 700;
}

h1 { font-size: clamp(2rem, 5vw, var(--text-5xl)); }
h2 { font-size: clamp(1.5rem, 3vw, var(--text-4xl)); }
h3 { font-size: clamp(1.25rem, 2.5vw, var(--text-3xl)); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p { margin-bottom: var(--space-4); }
p:last-child { margin-bottom: 0; }

/* =============================================
   Layout Utilities
   ============================================= */
.container {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.section-pad {
  padding-top: var(--section-pad);
  padding-bottom: var(--section-pad);
}

.section-pad-sm {
  padding-top: calc(var(--section-pad) * 0.6);
  padding-bottom: calc(var(--section-pad) * 0.6);
}

/* Section Label */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.section-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
}

.section-title {
  font-family: var(--font-heading);
  color: var(--color-heading);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  color: var(--color-muted);
  font-size: var(--text-lg);
  max-width: 640px;
  line-height: 1.7;
}

/* Grid Utilities */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-8); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }

/* Flex Utilities */
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* =============================================
   Buttons
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.03em;
  border-radius: var(--radius-full);
  transition: var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-accent);
  color: var(--color-dark);
  border-color: transparent;
  box-shadow: var(--shadow-accent);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(230,168,23,0.40);
  background: linear-gradient(135deg, #F5C842 0%, #E6A817 100%);
}

.btn-outline {
  background: transparent;
  color: var(--color-surface);
  border-color: rgba(255,255,255,0.7);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--color-surface);
  transform: translateY(-2px);
}

.btn-outline-dark {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline-dark:hover {
  background: var(--color-primary);
  color: var(--color-surface);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: var(--text-xs);
}

.btn-lg {
  padding: 1rem 2.25rem;
  font-size: var(--text-base);
}

/* =============================================
   Card Base
   ============================================= */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition-base);
}

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

/* =============================================
   Badge
   ============================================= */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.badge-teal {
  background: rgba(13,92,110,0.1);
  color: var(--color-primary);
}

.badge-gold {
  background: rgba(230,168,23,0.15);
  color: #8B6100;
}

.badge-green {
  background: rgba(16,185,129,0.12);
  color: #059669;
}

/* =============================================
   Divider
   ============================================= */
.divider {
  width: 60px;
  height: 3px;
  background: var(--gradient-accent);
  border-radius: var(--radius-full);
  margin: var(--space-4) 0;
}

.divider-center { margin-left: auto; margin-right: auto; }

/* =============================================
   Scroll Animations
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* =============================================
   Page Hero (inner pages)
   ============================================= */
.page-hero {
  background: var(--gradient-primary);
  padding: calc(var(--navbar-h) + var(--topbar-h) + 3rem) 0 3rem;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../assets/images/campus-bg.jpg') center/cover no-repeat;
  opacity: 0.15;
}

.page-hero .container { position: relative; }

.page-hero h1 {
  color: var(--color-surface);
  font-size: clamp(1.75rem, 4vw, var(--text-4xl));
  margin-bottom: var(--space-3);
}

.page-hero .breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255,255,255,0.7);
  font-size: var(--text-sm);
}

.page-hero .breadcrumb a { color: var(--color-accent); }
.page-hero .breadcrumb span { color: rgba(255,255,255,0.5); }

/* =============================================
   Responsive Breakpoints
   ============================================= */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  :root { --section-pad: 3rem; }
}

@media (max-width: 480px) {
  .grid-4 { grid-template-columns: 1fr; }
}

/* =============================================
   Scrollbar Styling
   ============================================= */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-light-bg); }
::-webkit-scrollbar-thumb { background: var(--color-primary-light); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--color-primary); }

/* =============================================
   Selection
   ============================================= */
::selection {
  background: rgba(13,92,110,0.2);
  color: var(--color-primary-dark);
}