/* ============================================
   TWINS IMMOBILIER - DESIGN SYSTEM
   Modern 2026 Web Standards
   ============================================ */

/* ============================================
   CSS VARIABLES & DESIGN TOKENS
   ============================================ */

:root {
  /* Colors - Primary */
  --color-primary: #D85A30;
  --color-primary-dark: #C04828;
  --color-primary-light: #E8845D;
  
  /* Colors - Secondary */
  --color-secondary: #1D9E75;
  --color-secondary-dark: #0F6E56;
  --color-secondary-light: #5DCAA5;
  
  /* Colors - Accent */
  --color-accent: #BA7517;
  --color-accent-light: #EF9F27;
  
  /* Colors - Semantic */
  --color-success: #3B6D11;
  --color-warning: #854F0B;
  --color-error: #A32D2D;
  --color-info: #185FA5;
  
  /* Colors - Text */
  --color-text-primary: #2C2C2A;
  --color-text-secondary: #5F5E5A;
  --color-text-tertiary: #888780;
  --color-text-light: #B4B2A9;
  --color-text-inverse: #FFFFFF;
  
  /* Colors - Background */
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #F8F7F4;
  --color-bg-tertiary: #EBE9E4;
  --color-bg-dark: #2C2C2A;
  
  /* Colors - Borders */
  --color-border-primary: rgba(45, 45, 42, 0.2);
  --color-border-secondary: rgba(45, 45, 42, 0.1);
  --color-border-tertiary: rgba(45, 45, 42, 0.05);
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #D85A30 0%, #A32D2D 100%);
  --gradient-hero: linear-gradient(135deg, #FBEAF0 0%, #E1F5EE 100%);
  --gradient-accent: linear-gradient(135deg, #EF9F27 0%, #D85A30 100%);
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --font-serif: Georgia, 'Garamond', 'Times New Roman', serif;
  --font-mono: 'Courier New', monospace;
  
  /* Font Sizes - Scale */
  --fs-12: 0.75rem;    /* 12px */
  --fs-13: 0.8125rem;  /* 13px */
  --fs-14: 0.875rem;   /* 14px */
  --fs-15: 0.9375rem;  /* 15px */
  --fs-16: 1rem;       /* 16px */
  --fs-18: 1.125rem;   /* 18px */
  --fs-20: 1.25rem;    /* 20px */
  --fs-22: 1.375rem;   /* 22px */
  --fs-24: 1.5rem;     /* 24px */
  --fs-28: 1.75rem;    /* 28px */
  --fs-32: 2rem;       /* 32px */
  --fs-36: 2.25rem;    /* 36px */
  
  /* Font Weights */
  --fw-400: 400;
  --fw-500: 500;
  --fw-600: 600;
  --fw-700: 700;
  
  /* Line Heights */
  --lh-tight: 1.2;
  --lh-normal: 1.4;
  --lh-relaxed: 1.6;
  --lh-loose: 1.8;
  
  /* Spacing Scale */
  --space-2: 0.125rem;   /* 2px */
  --space-4: 0.25rem;    /* 4px */
  --space-6: 0.375rem;   /* 6px */
  --space-8: 0.5rem;     /* 8px */
  --space-12: 0.75rem;   /* 12px */
  --space-16: 1rem;      /* 16px */
  --space-20: 1.25rem;   /* 20px */
  --space-24: 1.5rem;    /* 24px */
  --space-28: 1.75rem;   /* 28px */
  --space-32: 2rem;      /* 32px */
  --space-40: 2.5rem;    /* 40px */
  --space-48: 3rem;      /* 48px */
  --space-56: 3.5rem;    /* 56px */
  --space-64: 4rem;      /* 64px */
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-pill: 24px;
  
  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(216, 90, 48, 0.12);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Z-Index Scale */
  --z-hidden: -1;
  --z-base: 0;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-bg: 400;
  --z-modal: 500;
  --z-toast: 600;
  
  /* Breakpoints */
  --breakpoint-xs: 375px;
  --breakpoint-sm: 425px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
  :root {
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #D3D1C7;
    --color-text-tertiary: #B4B2A9;
    --color-text-light: #888780;
    --color-bg-primary: #1A1A18;
    --color-bg-secondary: #242420;
    --color-bg-tertiary: #2F2E2A;
    --color-border-primary: rgba(255, 255, 255, 0.15);
    --color-border-secondary: rgba(255, 255, 255, 0.08);
    --color-border-tertiary: rgba(255, 255, 255, 0.04);
  }
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-16);
  font-weight: var(--fw-400);
  line-height: var(--lh-relaxed);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  transition: background-color var(--transition-normal);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: var(--fw-600);
  line-height: var(--lh-tight);
  margin-bottom: var(--space-12);
}

h1 {
  font-size: var(--fs-36);
  font-size: clamp(var(--fs-28), 5vw, var(--fs-36));
}

h2 {
  font-size: var(--fs-28);
  font-size: clamp(var(--fs-22), 4vw, var(--fs-28));
}

h3 {
  font-size: var(--fs-22);
  font-size: clamp(var(--fs-18), 3vw, var(--fs-22));
}

h4 {
  font-size: var(--fs-18);
}

h5 {
  font-size: var(--fs-16);
}

h6 {
  font-size: var(--fs-14);
}

p {
  margin-bottom: var(--space-16);
  color: var(--color-text-secondary);
}

p:last-child {
  margin-bottom: 0;
}

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

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

strong, b {
  font-weight: var(--fw-600);
}

em, i {
  font-style: italic;
}

small {
  font-size: var(--fs-12);
  color: var(--color-text-tertiary);
}

/* ============================================
   LAYOUT HELPERS
   ============================================ */

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-24);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-16);
  }
}

.section {
  padding: var(--space-64) var(--space-24);
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-40) var(--space-16);
  }
}

.section-header {
  margin-bottom: var(--space-32);
}

.section-header h2 {
  margin-bottom: var(--space-8);
}

.section-header p {
  font-size: var(--fs-14);
  color: var(--color-text-secondary);
}

.grid {
  display: grid;
  gap: var(--space-24);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

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

.flex {
  display: flex;
  gap: var(--space-16);
}

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

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

.flex-col {
  flex-direction: column;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--color-bg-primary);
  border-bottom: 0.5px solid var(--color-border-secondary);
  backdrop-filter: blur(8px);
  transition: all var(--transition-normal);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-12) var(--space-24);
}

@media (max-width: 768px) {
  .header-content {
    padding: var(--space-12) var(--space-16);
  }
}

.logo {
  font-size: var(--fs-18);
  font-weight: var(--fw-600);
  color: var(--color-primary);
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.logo img {
  height: 32px;
  width: auto;
}

nav {
  display: flex;
  gap: var(--space-32);
  align-items: center;
}

@media (max-width: 768px) {
  nav {
    gap: var(--space-16);
    display: none;
  }
  
  nav.active {
    display: flex;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg-primary);
    border-bottom: 0.5px solid var(--color-border-secondary);
    padding: var(--space-16);
    gap: var(--space-12);
  }
}

nav a {
  font-size: var(--fs-13);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

nav a:hover,
nav a.active {
  color: var(--color-primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: var(--fs-20);
  cursor: pointer;
  color: var(--color-text-primary);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  padding: var(--space-10) var(--space-20);
  border: 0.5px solid var(--color-border-secondary);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: var(--fs-13);
  font-weight: var(--fw-500);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  border-color: var(--color-border-primary);
  background: var(--color-bg-secondary);
  transform: translateY(-1px);
}

.btn:active {
  transform: scale(0.98);
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Button Variants */

.btn-primary {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

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

.btn-secondary {
  background: var(--color-secondary);
  color: white;
  border-color: var(--color-secondary);
}

.btn-secondary:hover {
  background: var(--color-secondary-dark);
  border-color: var(--color-secondary-dark);
}

.btn-accent {
  background: var(--color-accent);
  color: white;
  border-color: var(--color-accent);
}

.btn-accent:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
}

.btn-ghost {
  background: transparent;
  border-color: var(--color-border-secondary);
  color: var(--color-text-primary);
}

.btn-ghost:hover {
  background: var(--color-bg-secondary);
}

.btn-large {
  padding: var(--space-12) var(--space-32);
  font-size: var(--fs-14);
  height: 44px;
}

.btn-small {
  padding: var(--space-6) var(--space-12);
  font-size: var(--fs-12);
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* ============================================
   FORMS
   ============================================ */

form {
  margin-bottom: var(--space-32);
}

.form-group {
  margin-bottom: var(--space-20);
}

label {
  display: block;
  font-size: var(--fs-13);
  font-weight: var(--fw-500);
  margin-bottom: var(--space-8);
  color: var(--color-text-primary);
}

label .required {
  color: var(--color-error);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="date"],
textarea,
select {
  width: 100%;
  padding: var(--space-12) var(--space-16);
  border: 0.5px solid var(--color-border-secondary);
  border-radius: var(--radius-md);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-size: var(--fs-14);
  transition: all var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(216, 90, 48, 0.1);
}

input::placeholder {
  color: var(--color-text-tertiary);
}

input:invalid:not(:placeholder-shown) {
  border-color: var(--color-error);
}

textarea {
  resize: vertical;
  min-height: 120px;
  font-family: var(--font-sans);
}

input[type="checkbox"],
input[type="radio"] {
  cursor: pointer;
  accent-color: var(--color-primary);
}

.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

.form-check input {
  width: auto;
  margin-bottom: 0;
}

.form-error {
  color: var(--color-error);
  font-size: var(--fs-12);
  margin-top: var(--space-4);
}

.form-success {
  color: var(--color-success);
  font-size: var(--fs-12);
  margin-top: var(--space-4);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  position: relative;
  padding: var(--space-64) var(--space-24);
  background: var(--gradient-hero);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(216, 90, 48, 0.1) 0%, transparent 70%);
  pointer-events: none;
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  margin-bottom: var(--space-12);
  color: var(--color-text-primary);
}

.hero p {
  font-size: var(--fs-15);
  max-width: 500px;
}

.search-bar {
  display: flex;
  gap: var(--space-8);
  margin-top: var(--space-28);
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .search-bar {
    flex-direction: column;
  }
}

.search-bar input {
  flex: 1;
  min-width: 200px;
  padding: var(--space-12) var(--space-16);
  border: 0.5px solid var(--color-border-secondary);
  border-radius: var(--radius-md);
  background: var(--color-bg-primary);
  font-size: var(--fs-13);
}

.search-bar button {
  padding: var(--space-12) var(--space-24);
}

/* Hero Stats */

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-16);
  margin-top: var(--space-40);
}

@media (max-width: 768px) {
  .stats {
    grid-template-columns: 1fr;
  }
}

.stat-card {
  background: var(--color-bg-primary);
  padding: var(--space-16);
  border-radius: var(--radius-lg);
  border: 0.5px solid var(--color-border-secondary);
  text-align: center;
}

.stat-number {
  font-size: var(--fs-24);
  font-weight: var(--fw-600);
  color: var(--color-primary);
}

.stat-label {
  font-size: var(--fs-12);
  color: var(--color-text-secondary);
  margin-top: var(--space-4);
}

/* ============================================
   CARDS
   ============================================ */

.card {
  background: var(--color-bg-primary);
  border: 0.5px solid var(--color-border-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.card-header {
  padding: var(--space-20);
  border-bottom: 0.5px solid var(--color-border-tertiary);
}

.card-body {
  padding: var(--space-20);
}

.card-footer {
  padding: var(--space-20);
  border-top: 0.5px solid var(--color-border-tertiary);
  background: var(--color-bg-secondary);
}

/* Property Card */

.property-card {
  cursor: pointer;
}

.property-image {
  position: relative;
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #E8C8B8 0%, #B4D4E8 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  font-size: var(--fs-12);
  overflow: hidden;
}

.property-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.property-tag {
  position: absolute;
  top: var(--space-12);
  left: var(--space-12);
  background: var(--color-primary);
  color: white;
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-md);
  font-size: var(--fs-11);
  font-weight: var(--fw-500);
}

.property-details {
  padding: var(--space-16);
}

.property-type {
  font-size: var(--fs-12);
  color: var(--color-primary);
  font-weight: var(--fw-500);
  margin-bottom: var(--space-6);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.property-title {
  font-size: var(--fs-16);
  font-weight: var(--fw-600);
  margin-bottom: var(--space-8);
  line-height: var(--lh-normal);
  font-family: var(--font-serif);
}

.property-price {
  font-size: var(--fs-18);
  font-weight: var(--fw-600);
  color: var(--color-primary);
  margin-bottom: var(--space-12);
}

.property-info {
  display: flex;
  justify-content: space-between;
  font-size: var(--fs-12);
  color: var(--color-text-secondary);
}

.property-info span {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* ============================================
   CATEGORY PILLS
   ============================================ */

.category-pills {
  display: flex;
  gap: var(--space-12);
  overflow-x: auto;
  padding-bottom: var(--space-8);
  margin-bottom: var(--space-24);
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

.category-pills::-webkit-scrollbar {
  height: 4px;
}

.category-pills::-webkit-scrollbar-track {
  background: var(--color-bg-secondary);
  border-radius: 2px;
}

.category-pills::-webkit-scrollbar-thumb {
  background: var(--color-border-primary);
  border-radius: 2px;
}

.pill {
  padding: var(--space-8) var(--space-16);
  border: 0.5px solid var(--color-border-secondary);
  border-radius: var(--radius-pill);
  font-size: var(--fs-12);
  cursor: pointer;
  white-space: nowrap;
  background: transparent;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  font-family: var(--font-sans);
  font-weight: var(--fw-500);
}

.pill:hover {
  border-color: var(--color-primary);
}

.pill.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta-section {
  background: var(--gradient-primary);
  color: white;
  padding: var(--space-64) var(--space-24);
  text-align: center;
}

.cta-section h2 {
  color: white;
  margin-bottom: var(--space-16);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: var(--space-24);
  font-size: var(--fs-14);
}

.cta-section button {
  padding: var(--space-12) var(--space-32);
  background: white;
  color: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  font-weight: var(--fw-600);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.cta-section button:hover {
  background: var(--color-bg-secondary);
}

/* ============================================
   FOOTER
   ============================================ */

footer {
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
  padding: var(--space-48) var(--space-24) var(--space-24);
}

@media (max-width: 768px) {
  footer {
    padding: var(--space-32) var(--space-16) var(--space-16);
  }
}

.footer-content {
  max-width: 1280px;
  margin: 0 auto var(--space-32);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-32);
}

@media (max-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-20);
  }
}

.footer-section h3 {
  font-size: var(--fs-13);
  font-weight: var(--fw-600);
  margin-bottom: var(--space-12);
  color: white;
  font-family: var(--font-sans);
}

.footer-section a {
  display: block;
  font-size: var(--fs-12);
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-8);
  transition: color var(--transition-fast);
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  border-top: 0.5px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-24);
  font-size: var(--fs-12);
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
}

/* ============================================
   UTILITIES
   ============================================ */

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.text-left {
  text-align: left;
}

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

.text-sm {
  font-size: var(--fs-12);
}

.text-lg {
  font-size: var(--fs-18);
}

.font-serif {
  font-family: var(--font-serif);
}

.font-mono {
  font-family: var(--font-mono);
}

.uppercase {
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.line-clamp-2 {
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.line-clamp-3 {
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.badge {
  display: inline-block;
  padding: var(--space-4) var(--space-10);
  border-radius: var(--radius-md);
  font-size: var(--fs-11);
  font-weight: var(--fw-500);
  background: var(--color-primary);
  color: white;
}

.badge-success {
  background: var(--color-success);
}

.badge-warning {
  background: var(--color-warning);
}

.badge-error {
  background: var(--color-error);
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */

.hide-mobile {
  display: none;
}

@media (min-width: 769px) {
  .show-mobile {
    display: none;
  }
  
  .hide-mobile {
    display: block;
  }
}

@media (max-width: 768px) {
  .hide-tablet {
    display: none;
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

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

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.animate-fadeIn {
  animation: fadeIn 0.3s ease-in-out;
}

.animate-slideInUp {
  animation: slideInUp 0.4s ease-out;
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================
   LOADING STATES
   ============================================ */

.loading {
  pointer-events: none;
  opacity: 0.6;
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border-secondary);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-secondary) 25%,
    var(--color-bg-tertiary) 50%,
    var(--color-bg-secondary) 75%
  );
  background-size: 200% 100%;
  animation: loading 1.5s ease-in-out infinite;
}

@keyframes loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  header,
  footer,
  .nav-toggle,
  .btn {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
}