/* Responsive design - Media queries for all breakpoints */

/* Base (320px - mobile first) */
/* Defined in other files */

/* ============ 375px+ (Small phones) ============ */
@media (min-width: 375px) {
  .container {
    padding: 0 var(--space-5);
  }

  h1 {
    font-size: var(--font-size-4xl);
  }

  .btn {
    padding: var(--space-3) var(--space-5);
  }

  .card {
    padding: var(--space-5);
  }
}

/* ============ 390px+ (Medium phones) ============ */
@media (min-width: 390px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }

  .px-4 {
    padding-left: var(--space-5);
    padding-right: var(--space-5);
  }
}

/* ============ 414px+ (Large phones) ============ */
@media (min-width: 414px) {
  .container {
    max-width: 390px;
  }

  header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }
}

/* ============ 768px+ (Tablets) ============ */
@media (min-width: 768px) {
  :root {
    --container-padding: var(--space-6);
  }

  body {
    font-size: var(--font-size-lg);
  }

  /* PROTECTED (Fase 2/3C/7/8): #app must stay exactly max-width: 600px in
     this ≥768px query and nowhere else. Confirmed unchanged at 768px,
     1024px, 1280px and 1440px during the Fase 8 Parte 1 token audit — see
     docs/PROJECT_LOG.md. Do not introduce a competing #app max-width rule
     in any other file or breakpoint. */
  #app {
    max-width: 600px;
    margin-inline: auto;
  }

  .container {
    max-width: 720px;
    padding: 0 var(--space-6);
  }

  h1 {
    font-size: var(--font-size-5xl);
  }

  h2 {
    font-size: var(--font-size-4xl);
  }

  .btn {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-lg);
  }

  .card {
    padding: var(--space-8);
  }

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

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

  /* Tablet layout: allow side navigation */
  .layout-tablet {
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: var(--space-6);
  }

  /* Hide mobile-only elements */
  .hide-tablet {
    display: none;
  }

  /* Show tablet elements */
  .show-tablet {
    display: block;
  }
}

/* ============ 1024px+ (Large tablets / Small desktops) ============ */
@media (min-width: 1024px) {
  .container {
    max-width: 960px;
    padding: 0 var(--space-8);
  }

  .grid-cols-auto {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  }

  /* Layout for larger screens */
  .layout-desktop {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--space-8);
    align-items: start;
  }

  /* Hide mobile elements */
  .hide-desktop {
    display: none;
  }

  /* Show desktop elements */
  .show-desktop {
    display: block;
  }

  main {
    padding-bottom: 0;
  }
}

/* ============ 1280px+ (Full desktops) ============ */
@media (min-width: 1280px) {
  .container {
    max-width: 1200px;
    padding: 0 var(--space-10);
  }

  body {
    font-size: var(--font-size-base);
  }

  .grid-5 {
    grid-template-columns: repeat(5, 1fr);
  }

  .grid-6 {
    grid-template-columns: repeat(6, 1fr);
  }

  h1 {
    font-size: 3.5rem;
  }

  h2 {
    font-size: 2.75rem;
  }

  /* Wider layout for desktop */
  .layout-wide {
    display: grid;
    grid-template-columns: 300px 1fr 300px;
    gap: var(--space-8);
  }
}

/* ============ Utilities for responsive display ============ */

/* Only show on mobile (< 768px) */
@media (min-width: 768px) {
  .show-mobile {
    display: none;
  }
}

/* Only show on desktop (>= 1024px) */
@media (max-width: 1023px) {
  .show-desktop {
    display: none;
  }
}

/* ============ Touch devices ============ */
@media (hover: none) and (pointer: coarse) {
  /* Increase tap targets on touch devices */
  .btn {
    min-height: 48px;
    min-width: 48px;
  }

  a,
  button,
  [role="button"] {
    min-height: 44px;
    min-width: 44px;
  }

  /* Disable hover effects on touch */
  .btn:hover {
    transform: none;
  }

  /* Add active state for touch feedback */
  .btn:active {
    transform: scale(0.95);
  }
}

/* ============ Print styles ============ */
@media print {
  body {
    background: white;
    color: black;
  }

  .no-print {
    display: none;
  }

  a {
    text-decoration: underline;
  }

  a::after {
    content: " (" attr(href) ")";
  }

  .card {
    page-break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ddd;
  }
}

/* ============ Dark mode (if user prefers) ============ */
@media (prefers-color-scheme: dark) {
  :root {
    --color-text-secondary: #B0BCCC;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  }
}

/* ============ High contrast mode ============ */
@media (prefers-contrast: more) {
  :root {
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.2);
  }

  .btn {
    border: 2px solid currentColor;
  }
}

/* ============ Landscape orientation ============ */
@media (orientation: landscape) and (max-height: 500px) {
  header {
    padding: var(--space-2) var(--space-4);
  }

  h1 {
    font-size: var(--font-size-3xl);
  }

  main {
    padding-bottom: var(--space-4);
  }
}

/* ============ Very small phones (320px) ============ */
@media (max-width: 374px) {
  .container {
    padding: 0 var(--space-4);
  }

  h1 {
    font-size: var(--font-size-3xl);
  }

  h2 {
    font-size: var(--font-size-2xl);
  }

  h3 {
    font-size: var(--font-size-xl);
  }

  .btn {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
  }

  .card {
    padding: var(--space-4);
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .hide-small {
    display: none;
  }
}

/* ============ Large screens - full width layout ============ */
@media (min-width: 1920px) {
  .container {
    max-width: 1440px;
  }

  body {
    font-size: 18px;
  }
}

/* ============ Aspect ratio support ============ */
@supports (aspect-ratio: 1) {
  .aspect-square {
    aspect-ratio: 1 / 1;
  }

  .aspect-video {
    aspect-ratio: 16 / 9;
  }

  .aspect-portrait {
    aspect-ratio: 3 / 4;
  }
}