/* ============================================
   Shree Properties & Interiors - Main CSS
   Premium real estate + interior design brand
   ============================================ */

/* ---------------- Design Tokens ---------------- */
:root {
  /* Colors */
  --primary-dark: #18201D;
  --warm-neutral: #F5F2EC;
  --white: #FFFFFF;
  --accent: #B8916B;
  --accent-dark: #9A7653;
  --text: #202020;
  --text-muted: #5A5A5A;
  --text-light: #757575;
  --border: rgba(24, 32, 29, 0.12);
  --border-strong: rgba(24, 32, 29, 0.22);
  --shadow-sm: 0 1px 3px rgba(24, 32, 29, 0.08);
  --shadow-md: 0 8px 24px rgba(24, 32, 29, 0.08);
  --shadow-lg: 0 16px 48px rgba(24, 32, 29, 0.12);
  --shadow-xl: 0 24px 64px rgba(24, 32, 29, 0.16);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;

  --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;

  --leading-tight: 1.2;
  --leading-snug: 1.35;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;

  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  --container-max: 1280px;
  --container-narrow: 720px;

  --header-height: 88px;
}

/* ---------------- Reset & Base ---------------- */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text);
  background-color: var(--white);
  overflow-x: hidden;
}

img, picture, video, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4, h5, h6, p {
  margin: 0;
}

fieldset {
  border: none;
  padding: 0;
  margin: 0;
}

/* ---------------- Typography ---------------- */
h1, h2, h3, h4 {
  line-height: var(--leading-tight);
  color: var(--primary-dark);
}

h1 {
  font-size: var(--text-4xl);
  font-weight: 600;
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--text-3xl);
  font-weight: 600;
  letter-spacing: -0.015em;
}

h3 {
  font-size: var(--text-2xl);
  font-weight: 600;
}

h4 {
  font-size: var(--text-xl);
  font-weight: 600;
}

.text-display {
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.text-lead {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text-muted);
}

.text-body {
  color: var(--text-muted);
  line-height: var(--leading-relaxed);
}

.text-small {
  font-size: var(--text-sm);
  color: var(--text-light);
}

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

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

/* ---------------- Layout ---------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-top: var(--spacing-3xl);
  padding-bottom: var(--spacing-3xl);
}

.section-sm {
  padding-top: var(--spacing-2xl);
  padding-bottom: var(--spacing-2xl);
}

.section-header {
  margin-bottom: var(--spacing-xl);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: var(--spacing-sm);
}

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

.section-title {
  max-width: 640px;
}

.section-description {
  max-width: 640px;
  margin-top: var(--spacing-sm);
}

.bg-neutral {
  background-color: var(--warm-neutral);
}

.bg-dark {
  background-color: var(--primary-dark);
  color: var(--white);
}

.bg-dark h1,
.bg-dark h2,
.bg-dark h3,
.bg-dark h4 {
  color: var(--white);
}

.bg-dark .text-body,
.bg-dark .text-lead,
.bg-dark .text-muted {
  color: rgba(255, 255, 255, 0.78);
}

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 0.75rem 1.5rem;
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

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

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

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

.btn-secondary:hover {
  background-color: #0f1513;
  box-shadow: var(--shadow-md);
}

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

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

.btn-outline-light {
  background-color: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline-light:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: var(--white);
}

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

.btn-white:hover {
  background-color: var(--warm-neutral);
  border-color: var(--warm-neutral);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: var(--text-base);
}

.btn-sm {
  padding: 0.5rem 1rem;
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
}

.btn-icon svg {
  width: 20px;
  height: 20px;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

/* ---------------- Cards ---------------- */
.card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

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

.card-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.card:hover .card-media img {
  transform: scale(1.04);
}

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

.card-title {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--primary-dark);
}

.card-location {
  font-size: var(--text-sm);
  color: var(--text-light);
  margin-bottom: var(--spacing-sm);
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-bottom: var(--spacing-md);
}

.card-price {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--accent);
  margin-bottom: var(--spacing-sm);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-accent {
  background-color: rgba(184, 145, 107, 0.12);
  color: var(--accent-dark);
}

.badge-dark {
  background-color: var(--primary-dark);
  color: var(--white);
}

.badge-light {
  background-color: var(--white);
  color: var(--primary-dark);
}

/* ---------------- Forms ---------------- */
.form-group {
  margin-bottom: var(--spacing-md);
}

label, .form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
  color: var(--primary-dark);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="search"],
select,
textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--text-base);
  font-family: inherit;
  color: var(--text);
  background-color: var(--white);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(184, 145, 107, 0.12);
}

input::placeholder,
textarea::placeholder {
  color: #9CA3AF;
}

.form-error {
  font-size: var(--text-xs);
  color: #DC2626;
  margin-top: 0.25rem;
}

.form-success {
  font-size: var(--text-sm);
  color: #047857;
  padding: var(--spacing-md);
  background-color: #ECFDF5;
  border-radius: var(--radius-md);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

.form-row textarea {
  min-height: 48px;
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235A5A5A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
}

textarea {
  min-height: 120px;
  resize: vertical;
}

/* ---------------- Grid utilities ---------------- */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

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

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.flex {
  display: flex;
}

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

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

.justify-between {
  justify-content: space-between;
}

.gap-sm {
  gap: var(--spacing-sm);
}

.gap-md {
  gap: var(--spacing-md);
}

.gap-lg {
  gap: var(--spacing-lg);
}

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

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

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.hidden {
  display: none !important;
}

.overflow-hidden {
  overflow: hidden;
}

/* Lock page scroll when mobile menu is open */
html.menu-open,
html.menu-open body {
  overflow: hidden;
  overscroll-behavior: none;
}

.w-full {
  width: 100%;
}

.justify-center {
  justify-content: center;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.ml-auto {
  margin-left: auto;
}

/* ---------------- Animations ---------------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeInUp 0.6s ease forwards;
}

/* ---------------- Accessibility focus ---------------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary-dark);
  color: var(--white);
  padding: 8px 16px;
  z-index: 10000;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
}