/* ==================================
   MOBILE
================================== */

@media (max-width: 767px) {

  .app {
    padding: 0;
    height: 100dvh;
  }

  .calculator {
    width: 100%;
    height: 100dvh;
    border-radius: 0;
  }

  .side-drawer {

    position: fixed;

    top: 0;
    right: -100%;

    width: 300px;
    max-width: 85vw;

    height: 100dvh;

    z-index: 1000;

    transition: right .3s ease;
  }

  .side-drawer.open {
    right: 0;
  }

  .drawer-close-btn {
    display: flex;
  }

  .drawer-overlay {

    position: fixed;

    inset: 0;

    background: rgba(0,0,0,.5);

    opacity: 0;
    visibility: hidden;

    z-index: 999;

    transition: .3s ease;
  }

  .drawer-overlay.active {

    opacity: 1;
    visibility: visible;
  }

  .menu-btn {
    display: flex;
  }

  .calculator-header {
    padding: 18px;
  }

  .display-section {
    padding: 18px;
  }

  .result {
    font-size: clamp(3rem, 14vw, 5rem);
  }

  .keypad {
    padding: 18px;
    gap: 8px;
  }

  .keypad button {
    height: 60px;
  }

  .history-panel {

    position: absolute;

    top: 90px;
    left: 16px;
    right: 16px;

    max-height: 260px;

    overflow-y: auto;

    z-index: 100;

    display: none;
  }

  .history-panel.open {
    display: block;
  }

  .converter-top-grid {

  grid-template-columns: 1fr;
}

}

/* ==================================
   MOBILE LANDSCAPE
================================== */

@media (orientation: landscape) and (max-height: 500px) {

  .calculator-header {
    padding: 10px 16px;
  }

  .display-section {
    min-height: 70px;
    padding: 10px 16px;
  }

  .last-calculation {
    display: none;
  }

  .expression {
    font-size: .9rem;
  }

  .result {
    font-size: clamp(2rem, 5vw, 3rem);
  }

  .keypad {
    gap: 5px;
    padding: 8px;
  }

  .keypad button {
    height: 42px;
  }

  .history-panel {
    max-height: 180px;
  }
}

/* ==================================
   TABLET
================================== */

@media (min-width: 768px) and (max-width: 1199px) {

  .app {
    padding: 16px;
  }

  .calculator {
    width: 100%;
    height: 100%;
  }

  .side-drawer {

    position: fixed;

    top: 0;
    right: -340px;

    width: 320px;

    height: 100dvh;

    z-index: 1000;

    transition: right .3s ease;
  }

  .side-drawer.open {
    right: 0;
  }

  .drawer-close-btn {
    display: flex;
  }

  .menu-btn {
    display: flex;
  }

  .history-panel {

    position: absolute;

    top: 100px;
    left: 20px;
    right: 20px;

    max-height: 320px;

    overflow-y: auto;

    z-index: 100;

    display: none;
  }

  .history-panel.open {
    display: block;
  }

  .converter-top-grid {

  grid-template-columns: 1fr;
}

}

/* ==================================
   DESKTOP
================================== */

@media (min-width: 1200px) {

  .app {

    width: 100%;

    display: flex;

    flex-direction: row-reverse;

    align-items: stretch;

    gap: 24px;

    padding: 24px;
  }

  .side-drawer {

    position: relative;

    right: auto;
    top: auto;

    width: 320px;

    flex-shrink: 0;

    display: flex;

    flex-direction: column;
  }

  .menu-btn {
    display: none;
  }

  .drawer-close-btn {
    display: none;
  }

  .drawer-overlay {
    display: none;
  }

  .calculator {

    flex: 1;

    min-width: 0;
  }

  .history-panel {

    position: absolute;

    top: 120px;
    left: 24px;
    right: 24px;

    max-height: 350px;

    overflow-y: auto;

    z-index: 50;

    display: none;
  }

  .history-panel.open {
    display: block;
  }
}

/* ==================================
   LARGE DESKTOP
================================== */

@media (min-width: 1440px) {

  .side-drawer {
    width: 340px;
  }
}

/* ==================================
   ULTRA WIDE
================================== */

@media (min-width: 1800px) {

  .app {

    max-width: 1800px;

    margin: 0 auto;
  }
}

/* ==================================
   SHORT HEIGHT DEVICES
================================== */

@media (max-height: 700px) {

  .calculator-header {
    padding: 12px 18px;
  }

  .display-section {
    min-height: 90px;
  }

  .result {
    font-size: clamp(2rem, 4vw, 3rem);
  }

  .keypad {
    gap: 6px;
    padding: 10px;
  }

  .keypad button {
    height: 46px;
  }
}


/* ==================================
   CONVERTER DESKTOP
================================== */

@media (min-width: 1200px) {

  .converter-body {

    max-width: 1400px;

    margin: 0 auto;

    width: 100%;
  }

  .converter-presets {

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

  .converter-form {

    display: grid;

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

    gap: 24px;
  }

  .converter-result {

    grid-column: span 2;
  }

  .converter-history {

    grid-column: span 2;
  }

  .favorites-card {

    width: 100%;
  }

}

/* ==================================
   TABLET
================================== */

@media (min-width: 768px)
and (max-width: 1199px) {

  .converter-body {

    padding: 20px;
  }

  .converter-presets {

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

  .converter-header {

    padding: 20px;
  }

  .converter-title h2 {

    font-size: 1.8rem;
  }

  .converter-result h3 {

    font-size: 2.5rem;
  }

}

/* ==================================
   MOBILE
================================== */

@media (max-width: 767px) {

  .converter-header {

    padding: 18px;
  }

  .converter-header-actions {

    gap: 8px;
  }

  .converter-title h2 {

    font-size: 1.5rem;
  }

  .converter-title p {

    font-size: .9rem;
  }

  .converter-body {

    padding: 16px;

    gap: 16px;
  }

  .converter-presets {

    grid-template-columns: 1fr;
  }

  .preset-card {

    height: 72px;

    font-size: 1rem;
  }

  .favorites-card,
  .converter-history,
  .converter-result {

    padding: 18px;
  }

  .converter-group select,
  .converter-group input {

    height: 56px;

    font-size: 1rem;
  }

  .swap-btn {

    width: 64px;
    height: 64px;

    font-size: 1.4rem;
  }

  .converter-result h3 {

    font-size: 2rem;
  }

  .converter-result-actions {

    flex-direction: column;
  }

  .converter-action-btn {

    width: 100%;
  }

}

/* ==================================
   SMALL MOBILE
================================== */

@media (max-width: 480px) {

  .converter-header {

    padding: 14px;
  }

  .converter-body {

    padding: 14px;
  }

  .converter-title h2 {

    font-size: 1.3rem;
  }

  .converter-result h3 {

    font-size: 1.8rem;
  }

  .preset-card {

    height: 64px;

    font-size: .95rem;
  }

}