/* =========================================
   FORMSNAP — CREATIVE UI REDESIGN
   ========================================= */

:root {
  color-scheme: light;
  --bg: #f7f7ff;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-solid: #ffffff;
  --surface-soft: #f0efff;
  --text: #19182b;
  --muted: #77758d;
  --border: rgba(109, 92, 231, 0.15);
  --primary: #6957e8;
  --primary-dark: #5040cc;
  --secondary: #a855f7;
  --accent: #13b8a6;
  --success: #14866d;
  --danger: #d9445c;
  --shadow: 0 20px 60px rgba(63, 47, 137, 0.09);
  --shadow-small: 0 8px 24px rgba(63, 47, 137, 0.07);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --transition: 220ms ease;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #10101b;
  --surface: rgba(28, 27, 46, 0.86);
  --surface-solid: #1c1b2e;
  --surface-soft: #26243f;
  --text: #f4f1ff;
  --muted: #aaa6c3;
  --border: rgba(171, 151, 255, 0.18);
  --primary: #a395ff;
  --primary-dark: #8a78ff;
  --secondary: #d18bff;
  --accent: #54dfc5;
  --success: #66dfb9;
  --danger: #ff8196;
  --shadow: 0 20px 65px rgba(0, 0, 0, 0.24);
  --shadow-small: 0 8px 26px rgba(0, 0, 0, 0.2);
}

/* Reset */

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(ellipse at 8% 4%, rgba(168, 85, 247, 0.09), transparent 36%),
    radial-gradient(ellipse at 95% 35%, rgba(19, 184, 166, 0.07), transparent 30%),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  transition: background-color var(--transition), color var(--transition);
}

button,
input,
select {
  font: inherit;
}

button,
select,
input {
  accent-color: var(--primary);
}

button {
  cursor: pointer;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
.drop-zone:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

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

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

[hidden] {
  display: none !important;
}

/* Ambient gradient shapes */

.ambient {
  position: fixed;
  z-index: -1;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  filter: blur(85px);
  opacity: 0.23;
  pointer-events: none;
  animation: float 13s ease-in-out infinite alternate;
}

.ambient-one {
  top: 15%;
  left: -180px;
  background: #9b7bff;
}

.ambient-two {
  top: 48%;
  right: -190px;
  background: #50dbc6;
  animation-delay: -5s;
}

@keyframes float {
  from {
    transform: translate3d(0, -15px, 0) scale(0.95);
  }
  to {
    transform: translate3d(35px, 30px, 0) scale(1.12);
  }
}

/* Header */

.site-header {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: 22px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text);
  font-size: 1.35rem;
  font-weight: 850;
  letter-spacing: -0.8px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, #7463f5, #b15bea);
  box-shadow: 0 7px 20px rgba(105, 87, 232, 0.3);
  color: white;
  font-size: 1.2rem;
  transform: rotate(-4deg);
  transition: transform var(--transition);
}

.brand:hover .brand-mark {
  transform: rotate(5deg) scale(1.06);
}

.brand-accent {
  color: var(--primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-link {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 650;
  transition: color var(--transition);
}

.nav-link:hover {
  color: var(--primary);
}

.privacy-note {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 650;
}

.privacy-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(19, 184, 166, 0.4);
}

#theme-toggle {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  color: var(--text);
  font-size: 1.1rem;
  transition: transform var(--transition), background var(--transition);
}

#theme-toggle:hover {
  transform: translateY(-2px) rotate(8deg);
  background: var(--surface-soft);
}

/* Main layout and hero */

.page-shell {
  width: min(850px, calc(100% - 36px));
  margin: 0 auto;
}

.hero {
  position: relative;
  padding: 64px 0 42px;
  text-align: center;
  animation: rise-in 650ms ease both;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 750;
  letter-spacing: 0.2px;
  box-shadow: var(--shadow-small);
}

.sparkle {
  display: inline-block;
  animation: sparkle 2.2s ease-in-out infinite;
}

@keyframes sparkle {
  0%, 100% { transform: scale(1) rotate(0); }
  50% { transform: scale(1.2) rotate(12deg); }
}

.hero h1 {
  margin: 22px 0 14px;
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  line-height: 1.06;
  letter-spacing: -3px;
  font-weight: 900;
}

.gradient-text {
  color: var(--primary);
  background: linear-gradient(
    100deg,
    #6957e8 10%,
    #c052e8 48%,
    #13b8a6 90%
  );
  background-size: 200% auto;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradient-shift 6s linear infinite;
}

@keyframes gradient-shift {
  to { background-position: 200% center; }
}

.hero-copy {
  max-width: 590px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 1.04rem;
}

.hero-benefits {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px 22px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
}

.benefit-check {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.benefit-check::first-letter {
  color: var(--accent);
}

/* Workspace card */

.workspace {
  position: relative;
  margin: 0 auto 50px;
  padding: clamp(20px, 5vw, 38px);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  animation: rise-in 750ms 100ms ease both;
}

.workspace-heading,
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.workspace-heading {
  margin-bottom: 24px;
}

.workspace-heading h2,
.section-heading h3 {
  margin: 0;
  font-size: 1.12rem;
  letter-spacing: -0.4px;
}

.section-kicker {
  display: block;
  margin-bottom: 4px;
  color: var(--primary);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.step-chip {
  flex-shrink: 0;
  padding: 6px 11px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
}

/* Upload area */

.drop-zone {
  position: relative;
  display: flex;
  min-height: 250px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 28px 20px;
  overflow: hidden;
  border: 2px dashed rgba(105, 87, 232, 0.34);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 50% 0%, rgba(168, 85, 247, 0.08), transparent 65%),
    var(--surface-soft);
  text-align: center;
  cursor: pointer;
  transition:
    border-color var(--transition),
    background var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.drop-zone::before {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    110deg,
    transparent 20%,
    rgba(255, 255, 255, 0.13) 50%,
    transparent 80%
  );
  content: "";
  transform: translateX(-100%);
  transition: transform 650ms ease;
  pointer-events: none;
}

.drop-zone:hover::before {
  transform: translateX(100%);
}

.drop-zone:hover,
.drop-zone.dragging,
.drop-zone.is-dragging {
  border-color: var(--primary);
  box-shadow: 0 0 0 5px rgba(105, 87, 232, 0.08);
}

.drop-zone:hover {
  transform: translateY(-2px);
}

.drop-zone.dragging,
.drop-zone.is-dragging {
  background: var(--surface-soft);
  transform: scale(1.01);
}

.upload-icon {
  display: grid;
  width: 68px;
  height: 68px;
  place-items: center;
  margin-bottom: 16px;
  border-radius: 22px;
  background: linear-gradient(140deg, #7463f5, #ba61ed);
  box-shadow: 0 12px 26px rgba(105, 87, 232, 0.25);
  color: white;
  transition: transform var(--transition);
}

.drop-zone:hover .upload-icon {
  transform: translateY(-4px) rotate(-4deg);
}

.upload-icon svg {
  width: 31px;
  height: 31px;
}

.drop-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 800;
}

.drop-subtitle {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.browse-link {
  color: var(--primary);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.file-hint {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.75rem;
}

#file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* Messages */

#error-message,
#status-message {
  margin-top: 14px;
  padding: 11px 14px;
  border-radius: var(--radius-md);
  font-size: 0.86rem;
  overflow-wrap: anywhere;
}

#error-message {
  border: 1px solid rgba(217, 68, 92, 0.25);
  background: rgba(217, 68, 92, 0.08);
  color: var(--danger);
}

#status-message {
  border: 1px solid var(--border);
  background: var(--surface-soft);
  color: var(--muted);
}

/* Editor sections */

#editor {
  margin-top: 30px;
  animation: rise-in 400ms ease both;
}

.preview-section,
.settings-section,
.results-section {
  margin-top: 28px;
}

.section-heading {
  margin-bottom: 15px;
}

.section-heading h3 {
  font-size: 1rem;
}

.preview-frame {
  display: grid;
  min-height: 180px;
  max-height: 440px;
  place-items: center;
  padding: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(45deg, var(--surface-soft) 25%, transparent 25%),
    linear-gradient(-45deg, var(--surface-soft) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, var(--surface-soft) 75%),
    linear-gradient(-45deg, transparent 75%, var(--surface-soft) 75%);
  background-size: 22px 22px;
}

#image-preview {
  max-width: 100%;
  max-height: 400px;
  object-fit: contain;
  border-radius: 8px;
}

#image-info {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.8rem;
  overflow-wrap: anywhere;
}

/* Buttons */

.primary-button,
.secondary-button,
.danger-button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 17px;
  border: 1px solid transparent;
  border-radius: 13px;
  font-size: 0.88rem;
  font-weight: 750;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    background var(--transition),
    border-color var(--transition);
}

.primary-button {
  background: linear-gradient(110deg, #6957e8, #a451e8);
  box-shadow: 0 8px 18px rgba(105, 87, 232, 0.22);
  color: #fff;
}

.primary-button:hover:not(:disabled) {
  box-shadow: 0 12px 24px rgba(105, 87, 232, 0.32);
  transform: translateY(-2px);
}

.secondary-button {
  border-color: var(--border);
  background: var(--surface-solid);
  color: var(--text);
}

.secondary-button:hover:not(:disabled) {
  border-color: var(--primary);
  background: var(--surface-soft);
  transform: translateY(-1px);
}

.danger-button {
  border-color: rgba(217, 68, 92, 0.2);
  background: rgba(217, 68, 92, 0.07);
  color: var(--danger);
}

.danger-button:hover:not(:disabled) {
  background: rgba(217, 68, 92, 0.14);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.52;
  transform: none;
  box-shadow: none;
}

/* Settings */

.settings-section > .section-heading {
  margin-bottom: 18px;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.setting-card,
.resize-card {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-solid);
  transition: border-color var(--transition), transform var(--transition);
}

.setting-card:hover,
.resize-card:hover {
  border-color: rgba(105, 87, 232, 0.38);
}

.setting-card label,
.field-label {
  display: block;
  margin-bottom: 9px;
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 750;
}

.setting-card select,
.resize-fields input {
  width: 100%;
  min-width: 0;
  min-height: 45px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: var(--surface);
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.setting-card select:focus,
.resize-fields input:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(105, 87, 232, 0.1);
}

.setting-help {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 0.76rem;
}

.resize-card {
  grid-column: 1 / -1;
}

.resize-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.resize-header h4 {
  margin: 0;
  font-size: 0.94rem;
}

.ratio-control {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.ratio-control input {
  width: 16px;
  height: 16px;
}

.resize-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.resize-fields label {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

/* Results */

.results-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.result-card {
  padding: 17px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-solid);
}

.result-label {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 650;
}

.result-value {
  display: block;
  margin-top: 5px;
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 850;
  letter-spacing: -0.5px;
  overflow-wrap: anywhere;
}

.result-card.highlight {
  border-color: rgba(19, 184, 166, 0.3);
  background: linear-gradient(
    135deg,
    rgba(19, 184, 166, 0.09),
    var(--surface-solid)
  );
}

#compression-result,
#transformation-result {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.84rem;
  overflow-wrap: anywhere;
}

/* Actions remain below all settings */

.action-section {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.action-section button {
  flex: 1 1 170px;
}


/* Premium Download Image button */
#download-button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;

  width: 100%;
  min-height: 52px;
  padding: 14px 24px;

  background: linear-gradient(135deg, #6366f1, #4f46e5);
  color: #ffffff;

  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.2px;

  border: none;
  border-radius: 12px;
  cursor: pointer;

  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.22);
  transition:
    background 0.2s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease,
    opacity 0.2s ease;
}

#download-button:hover:not(:disabled) {
  background: linear-gradient(135deg, #4f46e5, #4338ca);
  transform: translateY(-2px);
  box-shadow: 0 7px 18px rgba(79, 70, 229, 0.3);
}

#download-button:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(79, 70, 229, 0.2);
}

#download-button:focus-visible {
  outline: 3px solid rgba(99, 102, 241, 0.4);
  outline-offset: 3px;
}

#download-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}


/* Feature strip and footer */

.feature-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 0 0 65px;
}

.feature-item {
  padding: 18px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  text-align: center;
}

.feature-icon {
  display: block;
  margin-bottom: 8px;
  font-size: 1.4rem;
}

.feature-item h3 {
  margin: 0 0 5px;
  font-size: 0.88rem;
}

.feature-item p {
  margin: 0;
  color: var(--muted);
  font-size: 0.77rem;
}

.site-footer {
  padding: 25px 18px 35px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
}

.site-footer p {
  margin: 4px 0;
}

.site-footer strong {
  color: var(--text);
}

/* Entry animation */

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive layouts */

@media (max-width: 640px) {
  .site-header {
    width: calc(100% - 28px);
    padding: 16px 0;
  }

  .brand {
    gap: 8px;
    font-size: 1.15rem;
  }

  .brand-mark {
    width: 37px;
    height: 37px;
    border-radius: 12px;
  }

  .header-actions {
    gap: 9px;
  }

  .nav-link {
    display: none;
  }

  .privacy-note {
    padding: 7px 9px;
    font-size: 0.7rem;
  }

  #theme-toggle {
    width: 38px;
    height: 38px;
  }

  .page-shell {
    width: calc(100% - 24px);
  }

  .hero {
    padding: 45px 0 30px;
  }

  .hero h1 {
    letter-spacing: -1.8px;
  }

  .hero-copy {
    font-size: 0.94rem;
  }

  .hero-benefits {
    gap: 9px 15px;
    font-size: 0.77rem;
  }

  .workspace {
    padding: 19px 15px;
    border-radius: 22px;
  }

  .workspace-heading {
    align-items: flex-start;
  }

  .drop-zone {
    min-height: 225px;
    padding: 24px 12px;
  }

  .settings-grid {
    grid-template-columns: 1fr;
  }

  .resize-card {
    grid-column: auto;
  }

  .feature-strip {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-bottom: 42px;
  }

  .feature-item {
    display: flex;
    align-items: center;
    gap: 13px;
    padding: 14px;
    text-align: left;
  }

  .feature-icon {
    margin: 0;
  }

  .feature-item p {
    margin-top: 2px;
  }
}

@media (max-width: 390px) {
  .privacy-note {
    display: none;
  }

  .resize-fields,
  .results-grid {
    grid-template-columns: 1fr;
  }

  .action-section {
    flex-direction: column;
  }

  .action-section button {
    width: 100%;
    flex-basis: auto;
  }

  .step-chip {
    font-size: 0.68rem;
  }
}

/* Respect accessibility preferences */

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