/* ============================================================================
   KOPI TETANGGA – CSS STYLING & RESPONSIVE DESIGN
   Mobile-first approach with responsive breakpoints
   ============================================================================ */

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

:root {
  /* Colors */
  --color-primary: #3B2417;
  --color-secondary: #8B6F47;
  --color-accent: #D4A574;
  --color-light: #F5F1ED;
  --color-white: #FFFFFF;
  --color-dark: #1A1410;
  --color-gray: #6B6B6B;
  --color-border: #E8E3DE;
  --color-success: #2D5016;
  --color-error: #C1272D;

  /* Typography */
  --font-family-display: 'Playfair Display', serif;
  --font-family-body: 'Inter', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 2.5rem;
  --spacing-3xl: 3rem;
  --spacing-4xl: 4rem;
  --spacing-5xl: 5rem;

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

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
}

/* ============================================================================
   2. RESET & BASE STYLES
   ============================================================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-dark);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* ============================================================================
   3. ACCESSIBILITY
   ============================================================================ */

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-md);
  text-decoration: none;
  z-index: 100;
  border-radius: var(--radius-md);
}

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

/* Focus visible for keyboard navigation */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ============================================================================
   4. CONTAINER & LAYOUT
   ============================================================================ */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ============================================================================
   5. HEADER & NAVIGATION
   ============================================================================ */

.header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-family: var(--font-family-display);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  transition: color var(--transition-base);
}

.logo:hover {
  color: var(--color-secondary);
}

.logo__icon {
  width: 32px;
  height: 32px;
  color: var(--color-primary);
}

.logo__text {
  display: none;
}

/* Navigation Toggle (Mobile) */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm);
  margin: calc(var(--spacing-sm) * -1);
}

.nav-toggle__line {
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  transition: all var(--transition-base);
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Navigation */
.nav {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.nav[aria-expanded="true"] {
  max-height: 300px;
}

.nav__list {
  display: flex;
  flex-direction: column;
}

.nav__item {
  border-bottom: 1px solid var(--color-border);
}

.nav__item:last-child {
  border-bottom: none;
}

.nav__link {
  display: block;
  padding: var(--spacing-md);
  color: var(--color-dark);
  font-weight: var(--font-weight-medium);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.nav__link:hover {
  background-color: var(--color-light);
  color: var(--color-primary);
}

/* ============================================================================
   6. HERO SECTION
   ============================================================================ */

.hero {
  padding: var(--spacing-4xl) 0;
  background: linear-gradient(135deg, var(--color-light) 0%, var(--color-white) 100%);
}

.hero .container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3xl);
}

.hero__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.hero__title {
  font-family: var(--font-family-display);
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-primary);
}

.hero__subtitle {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-secondary);
  line-height: var(--line-height-normal);
}

.hero__description {
  font-size: var(--font-size-base);
  color: var(--color-gray);
  line-height: var(--line-height-relaxed);
}

.hero__cta {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.hero__image {
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
}

.hero__img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* ============================================================================
   7. BUTTONS
   ============================================================================ */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  text-align: center;
  cursor: pointer;
  border: 2px solid transparent;
}

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

.button--primary:hover {
  background-color: var(--color-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.button--primary:active {
  transform: translateY(0);
}

.button--secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.button--secondary:hover {
  background-color: var(--color-light);
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}

.button--secondary:active {
  background-color: var(--color-border);
}

/* ============================================================================
   8. SECTION HEADERS
   ============================================================================ */

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-family: var(--font-family-display);
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-tight);
}

.section-subtitle {
  font-size: var(--font-size-base);
  color: var(--color-gray);
  line-height: var(--line-height-normal);
}

/* ============================================================================
   9. MENU SECTION
   ============================================================================ */

.menu-section {
  padding: var(--spacing-4xl) 0;
  background-color: var(--color-white);
}

.menu-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
}

/* ============================================================================
   10. MENU CARD
   ============================================================================ */

.menu-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

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

.menu-card__image-wrapper {
  width: 100%;
  height: 280px;
  overflow: hidden;
  background-color: var(--color-light);
}

.menu-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.menu-card:hover .menu-card__image {
  transform: scale(1.05);
}

.menu-card__content {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.menu-card__title {
  font-family: var(--font-family-display);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.menu-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
  line-height: var(--line-height-relaxed);
}

.menu-card__price {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
}

/* ============================================================================
   11. ABOUT SECTION
   ============================================================================ */

.about-section {
  padding: var(--spacing-4xl) 0;
  background-color: var(--color-light);
}

.about-section .container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3xl);
}

.about__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.about__text {
  font-size: var(--font-size-base);
  color: var(--color-gray);
  line-height: var(--line-height-relaxed);
}

.about__image {
  width: 100%;
  max-width: 400px;
  margin: 0 auto;
}

.about__img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* ============================================================================
   12. VALUES GRID
   ============================================================================ */

.values-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-2xl);
}

.value-card {
  background-color: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-accent);
  transition: all var(--transition-base);
}

.value-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.value-card__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.value-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-gray);
  line-height: var(--line-height-relaxed);
}

/* ============================================================================
   13. CONTACT SECTION
   ============================================================================ */

.contact-section {
  padding: var(--spacing-4xl) 0;
  background-color: var(--color-white);
}

.contact-section .container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3xl);
}

.contact__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.contact__text {
  font-size: var(--font-size-base);
  color: var(--color-gray);
  line-height: var(--line-height-relaxed);
}

/* ============================================================================
   14. CONTACT FORM
   ============================================================================ */

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.form-group label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-dark);
}

.form-group input,
.form-group textarea {
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: var(--font-size-base);
  color: var(--color-dark);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(212, 165, 116, 0.1);
}

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

/* ============================================================================
   15. CONTACT INFO
   ============================================================================ */

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.contact-info__item {
  display: flex;
  gap: var(--spacing-md);
}

.contact-info__icon {
  width: 24px;
  height: 24px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact-info__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.contact-info__label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-dark);
}

.contact-info__value {
  font-size: var(--font-size-base);
  color: var(--color-gray);
}

.contact-info__value a {
  color: var(--color-primary);
  transition: color var(--transition-base);
}

.contact-info__value a:hover {
  color: var(--color-secondary);
}

/* ============================================================================
   16. FOOTER
   ============================================================================ */

.footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer .container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.footer__content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.footer__section {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.footer__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
}

.footer__text {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.8);
  line-height: var(--line-height-relaxed);
}

.footer__link {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-base);
}

.footer__link:hover {
  color: var(--color-accent);
}

.footer__divider {
  height: 1px;
  background-color: rgba(255, 255, 255, 0.2);
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  text-align: center;
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
}

/* ============================================================================
   17. RESPONSIVE DESIGN – TABLET (640px)
   ============================================================================ */

@media (min-width: 640px) {
  .container {
    padding: 0 var(--spacing-lg);
  }

  /* Header */
  .logo__text {
    display: inline;
  }

  .nav-toggle {
    display: none;
  }

  .nav {
    position: static;
    max-height: none;
    border: none;
    background: none;
  }

  .nav__list {
    flex-direction: row;
    gap: var(--spacing-2xl);
  }

  .nav__item {
    border: none;
  }

  .nav__link {
    padding: 0;
  }

  .nav__link:hover {
    background-color: transparent;
    color: var(--color-secondary);
  }

  /* Hero */
  .hero__title {
    font-size: var(--font-size-5xl);
  }

  .hero__cta {
    flex-direction: row;
    gap: var(--spacing-lg);
  }

  /* Menu Grid */
  .menu-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
  }

  /* Values Grid */
  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Contact Info */
  .contact-info {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Footer */
  .footer__content {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-3xl);
  }
}

/* ============================================================================
   18. RESPONSIVE DESIGN – DESKTOP (1024px)
   ============================================================================ */

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--spacing-xl);
  }

  /* Hero */
  .hero .container {
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-4xl);
  }

  .hero__content {
    flex: 1;
  }

  .hero__image {
    flex: 1;
    max-width: none;
  }

  /* Menu Grid */
  .menu-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* About Section */
  .about-section .container {
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-4xl);
  }

  .about__content {
    flex: 1;
  }

  .about__image {
    flex: 1;
    max-width: none;
  }

  /* Contact Section */
  .contact-section .container {
    flex-direction: row;
    gap: var(--spacing-4xl);
  }

  .contact__content {
    flex: 1;
  }

  .contact-info {
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  /* Values Grid */
  .values-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* ============================================================================
   19. UTILITY CLASSES
   ============================================================================ */

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

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

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

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

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

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

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

/* ============================================================================
   20. ANIMATIONS
   ============================================================================ */

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

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

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

.slide-up {
  animation: slideUp var(--transition-base) ease-in-out;
}