/* ======================== ROOT & THEME VARIABLES ======================== */
:root {
  /* Light Mode Colors */
  --primary-color: #2E4636;
  --secondary-color: #6A8B5D;
  --accent-color: #E89F65;
  --background-light: #F8F5F0;
  --background-base: #FFFFFF;
  --text-primary: #212121;
  --text-secondary: #666666;
  --border-color: #E0E0E0;
  --shadow-light: rgba(0, 0, 0, 0.08);
  --shadow-medium: rgba(0, 0, 0, 0.12);
  --shadow-dark: rgba(0, 0, 0, 0.16);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* Typography */
  --font-family-serif: 'Lora', 'Georgia', serif;
  --font-family-sans: 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;

  /* Border & Radius */
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

body.dark-mode {
  --background-light: #0f0f0f;
  --background-base: #1a1a1a;
  --text-primary: #f0f0f0;
  --text-secondary: #b0b0b0;
  --border-color: #333333;
  --shadow-light: rgba(0, 0, 0, 0.3);
  --shadow-medium: rgba(0, 0, 0, 0.4);
  --shadow-dark: rgba(0, 0, 0, 0.5);
  --accent-color: #ffa500;
}

/* ======================== GLOBAL STYLES ======================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-sans);
  background-color: var(--background-light);
  color: var(--text-primary);
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

p {
  color: var(--text-primary);
  line-height: 1.6;
  transition: color var(--transition-base);
}

/* ======================== HEADER & NAVIGATION ======================== */
header {
  background: linear-gradient(135deg, var(--primary-color) 0%, rgba(46, 70, 54, 0.95) 100%);
  box-shadow: 0 2px 8px var(--shadow-medium);
  transition: background var(--transition-base);
  position: sticky;
  top: 0;
  z-index: 1000;
}

body.dark-mode header {
  background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
}

.navbar-brand {
  font-size: 1.75rem;
  font-family: var(--font-family-serif);
  font-weight: 700;
  color: #ffffff !important;
  letter-spacing: 0.5px;
}

.navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  transition: color var(--transition-base), transform var(--transition-fast);
  font-weight: 500;
  margin: 0 0.5rem;
}

.navbar-nav .nav-link:hover {
  color: var(--accent-color) !important;
  transform: translateY(-2px);
}

.nav-controls {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-left: 1rem;
}

.theme-toggle, .language-toggle {
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #ffffff;
  padding: 0.5rem 0.75rem;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  font-size: 1rem;
}

.theme-toggle:hover, .language-toggle:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
  transform: scale(1.05);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent-color) 0%, rgba(232, 159, 101, 0.9) 100%);
  border: none;
  color: #ffffff;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-base);
}

.btn-accent:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 16px rgba(232, 159, 101, 0.3);
  text-decoration: none;
  color: #ffffff;
}

/* ======================== BUTTONS ======================== */
.btn-primary {
  background: linear-gradient(135deg, var(--primary-color) 0%, rgba(46, 70, 54, 0.85) 100%);
  border: none;
  color: #ffffff;
  font-weight: 600;
  transition: all var(--transition-base);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 16px var(--shadow-dark);
  text-decoration: none;
  color: #ffffff;
  background: linear-gradient(135deg, #1a2d1f 0%, rgba(30, 45, 35, 0.9) 100%);
}

.btn {
  border-radius: var(--border-radius-md);
  font-weight: 600;
  transition: all var(--transition-base);
}

/* ======================== CARDS & CONTAINERS ======================== */
.card {
  background: var(--background-base);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 4px 12px var(--shadow-light);
  transition: all var(--transition-base);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 24px var(--shadow-medium);
  border-color: var(--accent-color);
}

.card-body {
  padding: var(--spacing-lg);
}

/* ======================== BENTO GRID ======================== */
.bento-grid {
  display: grid;
  gap: var(--spacing-lg);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  animation: fadeIn var(--transition-base);
}

.bento-grid.large {
  grid-template-columns: repeat(2, 1fr);
}

.bento-item {
  background: var(--background-base);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.bento-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  opacity: 0;
  transition: opacity var(--transition-base);
}

.bento-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px var(--shadow-medium);
  border-color: var(--accent-color);
}

.bento-item:hover::before {
  opacity: 1;
}

.bento-item.large {
  grid-column: span 2;
}

.bento-item.tall {
  grid-row: span 2;
}

@media (max-width: 768px) {
  .bento-grid.large,
  .bento-item.large {
    grid-column: span 1;
  }
}

/* ======================== HERO SECTIONS ======================== */
.hero-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, rgba(46, 70, 54, 0.85) 100%);
  color: #ffffff;
  padding: var(--spacing-xl) var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  position: relative;
  overflow: hidden;
  margin-bottom: var(--spacing-xl);
}

body.dark-mode .hero-section {
  background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: drift 20s linear infinite;
  pointer-events: none;
}

.hero-section > * {
  position: relative;
  z-index: 1;
}

@keyframes drift {
  0% { transform: translate(0, 0); }
  100% { transform: translate(50px, 50px); }
}

/* ======================== TYPOGRAPHY ======================== */
.display-1, .display-2, .display-3, .display-4 {
  font-family: var(--font-family-serif);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

.lead {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  line-height: 1.8;
}

.text-accent {
  color: var(--accent-color);
}

.text-secondary {
  color: var(--text-secondary);
}

/* ======================== SECTIONS ======================== */
section {
  padding: var(--spacing-xl) var(--spacing-lg);
}

section.py-5 {
  padding-top: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
}

/* ======================== FOOTER ======================== */
footer {
  background: var(--primary-color);
  color: var(--background-light);
  padding: var(--spacing-xl) var(--spacing-lg);
  margin-top: var(--spacing-xl);
  transition: background var(--transition-base);
}

body.dark-mode footer {
  background: #1a1a1a;
  color: #f0f0f0;
}

footer h5 {
  font-family: var(--font-family-serif);
  font-weight: 700;
  color: var(--background-light);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.9rem;
}

footer a {
  color: var(--background-light);
  text-decoration: none;
  transition: color var(--transition-base);
}

footer a:hover {
  color: var(--accent-color);
  text-decoration: underline;
}

footer p {
  color: var(--background-light);
}

.footer-divider {
  border-top: 1px solid rgba(248, 245, 240, 0.2);
  padding-top: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

/* ======================== FORMS ======================== */
.form-control {
  background: var(--background-base);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  transition: all var(--transition-base);
  font-size: var(--font-size-base);
}

.form-control:focus {
  background: var(--background-base);
  border-color: var(--accent-color);
  color: var(--text-primary);
  box-shadow: 0 0 0 3px rgba(232, 159, 101, 0.1);
}

.form-label {
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

/* ======================== IMAGES ======================== */
img {
  border-radius: var(--border-radius-md);
  transition: transform var(--transition-base);
}

img:hover {
  transform: scale(1.02);
}

.img-fluid {
  max-width: 100%;
  height: auto;
}

/* ======================== LISTS ======================== */
.list-group-item {
  background: var(--background-base);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  transition: all var(--transition-base);
}

.list-group-item:hover {
  background: rgba(232, 159, 101, 0.05);
  transform: translateX(4px);
}

/* ======================== ANIMATIONS ======================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.fade-in {
  animation: fadeIn var(--transition-base);
}

.slide-in-right {
  animation: slideInRight var(--transition-base);
}

.slide-in-left {
  animation: slideInLeft var(--transition-base);
}

/* ======================== RESPONSIVE DESIGN ======================== */
@media (max-width: 768px) {
  :root {
    --spacing-xl: 2rem;
    --spacing-lg: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-2xl: 1.5rem;
  }

  section {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .bento-grid {
    grid-template-columns: 1fr;
  }

  .nav-controls {
    gap: 0.5rem;
    margin-top: 0.5rem;
  }

  .theme-toggle, .language-toggle {
    padding: 0.375rem 0.5rem;
    font-size: 0.875rem;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-lg: 1rem;
    --spacing-md: 0.75rem;
  }

  .hero-section {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .card-body {
    padding: var(--spacing-md);
  }
}

/* ======================== UTILITIES ======================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.row {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--spacing-lg);
  margin: 0;
}

.col-12 { grid-column: span 12; }
.col-lg-1 { grid-column: span 1; }
.col-lg-2 { grid-column: span 2; }
.col-lg-3 { grid-column: span 3; }
.col-lg-4 { grid-column: span 4; }
.col-lg-5 { grid-column: span 5; }
.col-lg-6 { grid-column: span 6; }
.col-lg-8 { grid-column: span 8; }

@media (max-width: 768px) {
  .col-md-6 { grid-column: span 6; }
  .col-md-12, .col-12 { grid-column: span 12; }
}

@media (max-width: 480px) {
  .col-12 { grid-column: span 12; }
  .col-md-6 { grid-column: span 12; }
}

/* ======================== SCROLLBAR ======================== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--background-light);
}

::-webkit-scrollbar-thumb {
  background: var(--accent-color);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(232, 159, 101, 0.8);
}