/* ============================================
   RESPONSIVE DESIGN SYSTEM
   Mobile-First Approach with Consistent Breakpoints
   ============================================ */

/* Breakpoint Reference (from design-system.css):
   - sm: 640px
   - md: 768px
   - lg: 1024px
   - xl: 1280px
   - 2xl: 1536px
*/

/* ===== CONTAINER QUERIES ===== */
/* Mobile-first: base container width for mobile (<640px) */
.container {
  width: min(100%, calc(100% - 2rem));
  max-width: 100% !important;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 640px) {
  .container {
    max-width: 640px;
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 768px;
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 1024px;
  }
}

@media (min-width: 1280px) {
  .container {
    max-width: 1280px;
  }
}

@media (min-width: 1536px) {
  .container {
    max-width: 1536px;
  }
}

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

button,
.btn,
.nav-link,
.navbar__link,
.navbar__hamburger,
.events-filter-btn,
.events-clear-filters {
  min-height: var(--touch-target-min);
}

/* ===== TYPOGRAPHY RESPONSIVE SCALES ===== */

/* Heading Responsive Sizing */
@media (min-width: 768px) {
  h1, .display-5 {
    font-size: clamp(2rem, 4vw, 3.5rem);
  }

  h2, .display-6 {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
  }

  h3 {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  }
}

/* ===== GRID LAYOUTS ===== */

/* 2-Column Grid - Responsive */
.grid-2-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1rem, 2vw, 1.5rem);
}

@media (min-width: 768px) {
  .grid-2-cols {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .grid-2-cols {
    gap: var(--space-8);
  }
}

/* 3-Column Grid - Responsive */
.grid-3-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1rem, 2vw, 1.5rem);
}

@media (min-width: 640px) {
  .grid-3-cols {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3-cols {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
  }
}

/* 4-Column Grid - Responsive */
.grid-4-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(0.875rem, 1.5vw, 1.25rem);
}

@media (min-width: 640px) {
  .grid-4-cols {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-4-cols {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1280px) {
  .grid-4-cols {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
  }
}

/* ===== FLEXBOX RESPONSIVE ===== */

/* Flex Direction - Mobile to Desktop */
.flex-column-md {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .flex-column-md {
    flex-direction: row;
    gap: var(--space-6);
    align-items: center;
  }
}

.flex-column-lg {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

@media (min-width: 1024px) {
  .flex-column-lg {
    flex-direction: row;
    gap: var(--space-8);
    align-items: center;
  }
}

/* ===== PADDING & MARGIN RESPONSIVE ===== */

/* Section Padding - Responsive */
.section-py {
  padding-top: clamp(3rem, 6vw, 5rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
}

@media (min-width: 768px) {
  .section-py {
    padding-top: clamp(4rem, 6vw, 6rem);
    padding-bottom: clamp(4rem, 6vw, 6rem);
  }
}

@media (min-width: 1024px) {
  .section-py {
    padding-top: clamp(5rem, 7vw, 7rem);
    padding-bottom: clamp(5rem, 7vw, 7rem);
  }
}

.section-px {
  padding-left: clamp(1rem, 2.5vw, 2rem);
  padding-right: clamp(1rem, 2.5vw, 2rem);
}

@media (min-width: 768px) {
  .section-px {
    padding-left: clamp(1.5rem, 3vw, 2.5rem);
    padding-right: clamp(1.5rem, 3vw, 2.5rem);
  }
}

@media (min-width: 1024px) {
  .section-px {
    padding-left: clamp(2rem, 4vw, 3rem);
    padding-right: clamp(2rem, 4vw, 3rem);
  }
}


.responsive-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .responsive-stack {
    flex-direction: row;
    align-items: center;
    gap: var(--space-6);
  }
}

/* ===== DISPLAY RESPONSIVE ===== */

.hidden-mobile {
  display: none;
}

@media (min-width: 768px) {
  .hidden-mobile {
    display: block;
  }
}

.hidden-tablet {
  display: none;
}

@media (min-width: 1024px) {
  .hidden-tablet {
    display: block;
  }
}

.visible-mobile {
  display: block;
}

@media (min-width: 768px) {
  .visible-mobile {
    display: none;
  }
}

.visible-tablet {
  display: none;
}

@media (min-width: 768px) and (max-width: 1023px) {
  .visible-tablet {
    display: block;
  }
}

/* ===== NAVIGATION RESPONSIVE ===== */

nav {
  padding: var(--space-3) var(--space-4);
}

@media (min-width: 768px) {
  nav {
    padding: var(--space-4) var(--space-6);
  }
}

@media (min-width: 1024px) {
  nav {
    padding: var(--space-4) var(--space-8);
  }
}

/* ===== SIDEBAR LAYOUT ===== */

.sidebar-layout {
  display: flex;
  flex-direction: column;
  gap: clamp(1.25rem, 3vw, 1.5rem);
}

@media (min-width: 1024px) {
  .sidebar-layout {
    flex-direction: row;
  }

  .sidebar-layout > main {
    flex: 1;
  }

  .sidebar-layout > aside {
    width: 300px;
    flex-shrink: 0;
  }
}

/* ===== CARD GRID RESPONSIVE ===== */

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1rem, 2vw, 1.5rem);
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

@media (min-width: 1024px) {
  .card-grid {
    gap: clamp(1.25rem, 2vw, 1.5rem);
  }
}

@media (min-width: 1280px) {
  .card-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
}

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

.hero {
  min-height: 300px;
  padding: var(--space-6);
}

@media (min-width: 768px) {
  .hero {
    min-height: 400px;
    padding: var(--space-8);
  }
}

@media (min-width: 1024px) {
  .hero {
    min-height: 500px;
    padding: var(--space-12);
  }
}

@media (min-width: 1280px) {
  .hero {
    min-height: 600px;
  }
}

/* ===== BUTTON GROUP RESPONSIVE ===== */

.button-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

@media (min-width: 640px) {
  .button-group {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-3);
  }
}

/* ===== IMAGE RESPONSIVE ===== */

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

picture {
  display: block;
}

/* ===== TABLE RESPONSIVE ===== */

table {
  width: 100%;
  overflow-x: auto;
}

@media (max-width: 767px) {
  table {
    font-size: var(--text-sm);
  }

  th, td {
    padding: var(--space-2);
  }
}

@media (min-width: 768px) {
  th, td {
    padding: var(--space-3);
  }
}

/* ===== FORM RESPONSIVE ===== */

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .form-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .form-row {
    gap: var(--space-6);
  }
}

/* ===== TEXT RESPONSIVE ===== */

.text-responsive {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
}

@media (min-width: 768px) {
  .text-responsive {
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
  }
}

/* ===== SPACING ADJUSTMENTS ===== */

.gap-responsive {
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .gap-responsive {
    gap: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .gap-responsive {
    gap: var(--space-8);
  }
}

/* ===== PRINT MEDIA ===== */

@media print {
  /* Hide navigation and footer for print */
  nav, 
  footer,
  .no-print,
  .breadcrumbs {
    display: none;
  }

  /* Optimize colors for print */
  body {
    background-color: #fff;
    color: #000;
  }

  /* Ensure readable text sizes for print */
  body {
    font-size: 12pt;
    line-height: 1.5;
  }

  /* Link styling for print */
  a {
    color: #0000ff;
    text-decoration: underline;
  }

  /* Page breaks */
  .page-break {
    page-break-before: always;
  }
}

/* ===== REDUCED MOTION ===== */

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===== HIGH CONTRAST MODE ===== */

@media (prefers-contrast: more) {
  :root {
    --border: #000;
    --primary: #000;
    --accent: #000;
  }
}

/* ===== LIGHT/DARK MODE ===== */

@media (prefers-color-scheme: dark) {
  :root {
    --background: #1a1a1a;
    --foreground: #ffffff;
    --card: #2a2a2a;
  }
}

@media (prefers-color-scheme: light) {
  :root {
    --background: #ffffff;
    --foreground: #1a1f36;
    --card: #ffffff;
  }
}