/* ============================================================
   Yuty.ai — Design System: "The Ethereal Vault" (Dark Mode)
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@200;400;600;800&family=Inter:wght@300;400;500;600&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:wght,FILL@100..700,0..1&display=swap');

/* --- Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* --- Design Tokens --- */
:root {
  /* Surfaces */
  --surface:                  #121212;
  --surface-container-lowest: #121212;
  --surface-container-low:    #181818;
  --surface-container:        #1e1e1e;
  --surface-container-high:   #2a2a2a;
  --surface-container-highest:#333333;
  --surface-bright:           #222222;

  /* Text */
  --on-surface:               #ffffff;
  --on-surface-variant:       #a0a0a0;
  --on-background:            #ffffff;

  /* Primary & Accent */
  --primary:                  #ffffff;
  --primary-dim:              #e0e0e0;
  --primary-container:        #333333;
  --primary-fixed-dim:        #cccccc;

  /* Borders & Outlines */
  --ghost-border:             rgba(255, 255, 255, 0.05);
  --ghost-border-hover:       rgba(255, 255, 255, 0.10);
  --outline-variant:          #444444;
  --divider:                  rgba(255, 255, 255, 0.10);

  /* Error */
  --error-container:          #cf6679;
  --on-error-container:       #000000;

  /* Tertiary */
  --tertiary-container:       #333333;

  /* Spacing Scale */
  --spacing-1:  0.25rem;
  --spacing-2:  0.5rem;
  --spacing-3:  0.75rem;
  --spacing-4:  1rem;
  --spacing-5:  1.25rem;
  --spacing-6:  1.5rem;
  --spacing-8:  2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  --spacing-24: 6rem;

  /* Radii */
  --radius-sm:   0.125rem;
  --radius-md:   0.375rem;
  --radius-lg:   0.5rem;
  --radius-xl:   0.75rem;
  --radius-2xl:  1rem;
  --radius-3xl:  1.5rem;
  --radius-full: 9999px;

  /* Typography */
  --font-headline: 'Manrope', sans-serif;
  --font-body:     'Inter', sans-serif;

  /* Shadows (atmospheric, never pure black) */
  --shadow-ambient: 0 12px 32px -4px rgba(42, 52, 52, 0.06);
  --shadow-elevated: 0 8px 24px -2px rgba(0, 0, 0, 0.3);

  /* Sidebar */
  --sidebar-width: 16rem;

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow:   500ms ease;
}

/* --- Base --- */
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--surface);
  color: var(--on-surface);
  line-height: 1.6;
  min-height: 100vh;
}

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

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

/* --- Material Symbols --- */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
}

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

/* --- Sidebar --- */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background-color: var(--surface-container-low);
  display: flex;
  flex-direction: column;
  padding: var(--spacing-8) var(--spacing-4);
  z-index: 40;
  border-right: 1px solid var(--ghost-border);
  font-family: var(--font-headline);
}

.sidebar__brand {
  padding: 0 var(--spacing-5);
  margin-bottom: var(--spacing-12);
}

.sidebar__logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--on-surface);
  letter-spacing: -0.02em;
}

.sidebar__tagline {
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--on-surface-variant);
  font-weight: 500;
  margin-top: var(--spacing-1);
}

/* Navigation */
.sidebar__nav {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
}

.sidebar__link {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-3) var(--spacing-5);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  color: var(--on-surface-variant);
  border-left: 4px solid transparent;
  transition: color var(--transition-normal), background-color var(--transition-normal);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.sidebar__link:hover {
  color: var(--on-surface);
  background-color: rgba(255, 255, 255, 0.05);
}

.sidebar__link--active {
  color: var(--on-surface);
  font-weight: 600;
  border-left-color: var(--on-surface);
}

/* Footer badge */
.sidebar__footer {
  margin-top: auto;
  padding: 0 var(--spacing-5);
}

.sidebar__badge {
  padding: var(--spacing-4);
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.10);
}

.sidebar__badge p {
  font-size: 0.75rem;
  color: var(--on-surface-variant);
  line-height: 1.5;
  font-family: var(--font-body);
}

/* --- Top Header --- */
.header {
  position: fixed;
  top: 0;
  right: 0;
  width: calc(100% - var(--sidebar-width));
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--spacing-12);
  height: 5rem;
  background: rgba(18, 18, 18, 0.70);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--ghost-border);
  transition: all var(--transition-normal);
}

.header__brand {
  font-family: var(--font-headline);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--on-surface);
  letter-spacing: -0.02em;
}

/* --- Main Content --- */
.main {
  margin-left: var(--sidebar-width);
  padding-top: 8rem;
  padding-bottom: var(--spacing-24);
  padding-left: var(--spacing-8);
  padding-right: var(--spacing-8);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* --- Footer --- */
.footer {
  width: 100%;
  padding: var(--spacing-12) 0;
  margin-left: var(--sidebar-width);
  background-color: var(--surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-4);
  font-family: var(--font-body);
  border-top: 1px solid var(--ghost-border);
}

.footer__links {
  display: flex;
  gap: var(--spacing-8);
}

.footer__links a {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  transition: color var(--transition-normal);
}

.footer__links a:hover {
  color: var(--on-surface);
}

.footer__copy {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  opacity: 0.4;
}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  max-width: 56rem;
  width: 100%;
  text-align: center;
  margin-bottom: var(--spacing-24);
}

.hero__headline {
  font-family: var(--font-headline);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  color: var(--on-surface);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.hero__headline-dim {
  color: rgba(255, 255, 255, 0.35);
}

/* ============================================================
   DIVIDER
   ============================================================ */
.divider {
  width: 100%;
  max-width: 72rem;
  height: 1px;
  background: var(--divider);
  margin-bottom: var(--spacing-24);
}

/* ============================================================
   PRODUCT CARDS (Bento Grid)
   ============================================================ */
.product-grid {
  max-width: 72rem;
  width: 100%;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-8);
  padding: 0 var(--spacing-4);
}

.product-card {
  position: relative;
  background: var(--surface-container-low);
  padding: var(--spacing-10);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--ghost-border);
  overflow: hidden;
  transition: background-color var(--transition-slow);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  background: var(--surface-container);
}

/* Left accent bar */
.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: rgba(255, 255, 255, 0.15);
  transition: background var(--transition-slow);
}

.product-card:hover::before {
  background: rgba(255, 255, 255, 0.30);
}

.product-card__icon-wrap {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--on-surface);
  margin-bottom: var(--spacing-6);
  transition: transform var(--transition-slow);
}

.product-card:hover .product-card__icon-wrap {
  transform: scale(1.1);
}

.product-card__icon-wrap .material-symbols-outlined {
  font-size: 1.75rem;
}

.product-card__title {
  font-family: var(--font-headline);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--on-surface);
  margin-bottom: var(--spacing-2);
}

.product-card__desc {
  color: var(--on-surface-variant);
  line-height: 1.7;
  font-size: 0.9375rem;
  flex-grow: 1;
}

.product-card__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  font-weight: 600;
  color: var(--on-surface);
  margin-top: var(--spacing-6);
  transition: gap var(--transition-normal);
}

.product-card:hover .product-card__cta {
  gap: var(--spacing-4);
}

/* ============================================================
   SECURITY / PRIVACY SECTION
   ============================================================ */
.security-section {
  max-width: 72rem;
  width: 100%;
  margin-top: var(--spacing-24);
  background: var(--surface-container-low);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--radius-3xl);
  padding: var(--spacing-16);
  display: flex;
  align-items: center;
  gap: var(--spacing-12);
  overflow: hidden;
}

.security-section__content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

.security-section__eyebrow {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--on-surface-variant);
  font-weight: 700;
}

.security-section__headline {
  font-family: var(--font-headline);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--surface-bright);
  line-height: 1.2;
}

.security-section__text {
  font-size: 1.125rem;
  color: var(--on-surface-variant);
  line-height: 1.7;
}

.security-section__badges {
  display: flex;
  gap: var(--spacing-4);
  padding-top: var(--spacing-4);
}

.security-section__badge-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  font-size: 0.875rem;
  color: var(--on-surface-variant);
}

.security-section__badge-item .material-symbols-outlined {
  color: var(--on-surface);
}

.security-section__image {
  flex: 1;
  max-width: 50%;
  height: 20rem;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  position: relative;
}

.security-section__visual {
  width: 100%;
  height: 100%;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(60, 100, 80, 0.25) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 30%, rgba(40, 80, 90, 0.20) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(30, 60, 70, 0.15) 0%, transparent 60%),
    linear-gradient(180deg, #0a0f0c 0%, #111a16 30%, #0d1210 70%, #080c0a 100%);
  position: relative;
  overflow: hidden;
}

.security-section__visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 40px,
      rgba(80, 140, 100, 0.03) 40px,
      rgba(80, 140, 100, 0.03) 41px
    ),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 40px,
      rgba(80, 140, 100, 0.02) 40px,
      rgba(80, 140, 100, 0.02) 41px
    );
}

.security-section__visual::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: 10%;
  right: 10%;
  height: 50%;
  background: radial-gradient(ellipse at center, rgba(60, 120, 90, 0.12) 0%, transparent 70%);
  filter: blur(20px);
  animation: pulse-glow 6s ease-in-out infinite alternate;
}

@keyframes pulse-glow {
  from { opacity: 0.4; }
  to { opacity: 0.8; }
}

/* ============================================================
   EMBED PAGE (Freescribe)
   ============================================================ */
.embed-page {
  max-width: 100%;
  width: 100%;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.embed-page__back {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  color: var(--on-surface-variant);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-4);
  transition: color var(--transition-normal);
}

.embed-page__back:hover {
  color: var(--on-surface);
}

.embed-page__frame {
  flex: 1;
  width: 100%;
  min-height: calc(100vh - 12rem);
  border: 1px solid var(--ghost-border);
  border-radius: var(--radius-2xl);
  background: var(--surface-container-low);
}

/* ============================================================
   MIMICLY PAGE
   ============================================================ */
.mimicly {
  max-width: 48rem;
  width: 100%;
}

.mimicly__header {
  margin-bottom: var(--spacing-8);
}

.mimicly__title {
  font-family: var(--font-headline);
  font-size: 2rem;
  font-weight: 700;
  color: var(--on-surface);
  margin-bottom: var(--spacing-2);
}

.mimicly__subtitle {
  color: var(--on-surface-variant);
  font-size: 1rem;
}

.mimicly__card {
  background: var(--surface-container-low);
  border: 1px solid var(--ghost-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-10);
}

.mimicly__label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--on-surface);
  margin-bottom: var(--spacing-2);
}

.mimicly__textarea {
  width: 100%;
  min-height: 8rem;
  padding: var(--spacing-4);
  background: var(--surface-container);
  color: var(--on-surface);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.6;
  resize: vertical;
  transition: background var(--transition-normal), border-color var(--transition-normal);
}

.mimicly__textarea:focus {
  outline: none;
  background: var(--surface-container-lowest);
  border-color: rgba(255, 255, 255, 0.15);
}

.mimicly__controls {
  display: flex;
  gap: var(--spacing-4);
  margin-top: var(--spacing-6);
  align-items: flex-end;
}

.mimicly__control-group {
  flex: 1;
}

.mimicly__select,
.mimicly__input {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  background: var(--surface-container);
  color: var(--on-surface);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  transition: background var(--transition-normal), border-color var(--transition-normal);
  appearance: none;
  -webkit-appearance: none;
}

.mimicly__select:focus,
.mimicly__input:focus {
  outline: none;
  background: var(--surface-container-lowest);
  border-color: rgba(255, 255, 255, 0.15);
}

.mimicly__select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23a0a0a0' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 2.5rem;
}

.mimicly__btn {
  padding: var(--spacing-3) var(--spacing-8);
  background: var(--on-surface);
  color: var(--surface);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity var(--transition-normal), transform var(--transition-fast);
}

.mimicly__btn:hover {
  opacity: 0.9;
}

.mimicly__btn:active {
  transform: scale(0.98);
}

.mimicly__btn:disabled {
  background: var(--surface-container-highest);
  color: var(--on-surface-variant);
  cursor: not-allowed;
}

.mimicly__status {
  margin-top: var(--spacing-6);
  padding: var(--spacing-4);
  background: var(--surface-container);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  min-height: 2.75rem;
  display: flex;
  align-items: center;
}

.mimicly__audio-container {
  margin-top: var(--spacing-6);
}

.mimicly__audio-container audio {
  width: 100%;
  border-radius: var(--radius-lg);
}

.mimicly__download {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  margin-top: var(--spacing-3);
  color: var(--primary-fixed-dim);
  font-size: 0.875rem;
  transition: color var(--transition-normal);
}

.mimicly__download:hover {
  color: var(--on-surface);
}

/* ============================================================
   BGBLAST PAGE
   ============================================================ */
.bgblast {
  max-width: 56rem;
  width: 100%;
}

.bgblast__header {
  margin-bottom: var(--spacing-8);
}

.bgblast__title {
  font-family: var(--font-headline);
  font-size: 2rem;
  font-weight: 700;
  color: var(--on-surface);
  margin-bottom: var(--spacing-2);
}

.bgblast__subtitle {
  color: var(--on-surface-variant);
  font-size: 1rem;
}

.bgblast__card {
  background: var(--surface-container-low);
  border: 1px solid var(--ghost-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-10);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

.bgblast__drop-zone {
  border: 2px dashed var(--outline-variant);
  border-radius: var(--radius-xl);
  padding: var(--spacing-16) var(--spacing-8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-3);
  cursor: pointer;
  transition: border-color var(--transition-normal), background-color var(--transition-normal);
  text-align: center;
}

.bgblast__drop-zone:hover,
.bgblast__drop-zone.drag-over {
  border-color: rgba(255, 255, 255, 0.35);
  background-color: rgba(255, 255, 255, 0.03);
}

.bgblast__drop-icon {
  font-size: 3rem;
  color: var(--on-surface-variant);
  transition: color var(--transition-normal);
}

.bgblast__drop-zone:hover .bgblast__drop-icon,
.bgblast__drop-zone.drag-over .bgblast__drop-icon {
  color: var(--on-surface);
}

.bgblast__drop-label {
  font-family: var(--font-headline);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--on-surface);
}

.bgblast__drop-hint {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
}

.bgblast__drop-link {
  color: var(--primary-fixed-dim);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.bgblast__status {
  padding: var(--spacing-4);
  background: var(--surface-container);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  min-height: 2.75rem;
  display: flex;
  align-items: center;
}

.bgblast__status--error {
  color: var(--error-container);
}

.bgblast__results {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--spacing-6);
}

.bgblast__result-item {
  background: var(--surface-container);
  border-radius: var(--radius-xl);
  border: 1px solid var(--ghost-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.bgblast__canvas-wrap {
  position: relative;
  background-image:
    linear-gradient(45deg, #333 25%, transparent 25%),
    linear-gradient(-45deg, #333 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #333 75%),
    linear-gradient(-45deg, transparent 75%, #333 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  background-color: #1a1a1a;
}

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

.bgblast__result-footer {
  padding: var(--spacing-3) var(--spacing-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--ghost-border);
}

.bgblast__result-name {
  font-size: 0.75rem;
  color: var(--on-surface-variant);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 60%;
}

.bgblast__download {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  color: var(--primary-fixed-dim);
  font-size: 0.875rem;
  transition: color var(--transition-normal);
  white-space: nowrap;
}

.bgblast__download:hover {
  color: var(--on-surface);
}

@media (max-width: 600px) {
  .bgblast__results {
    grid-template-columns: 1fr;
  }
  .bgblast__drop-zone {
    padding: var(--spacing-10) var(--spacing-4);
  }
}

/* ============================================================
   SEGMENTER PAGE
   ============================================================ */
.segmenter {
  max-width: 56rem;
  width: 100%;
}

.segmenter__header {
  margin-bottom: var(--spacing-8);
}

.segmenter__title {
  font-family: var(--font-headline);
  font-size: 2rem;
  font-weight: 700;
  color: var(--on-surface);
  margin-bottom: var(--spacing-2);
}

.segmenter__subtitle {
  color: var(--on-surface-variant);
  font-size: 1rem;
}

.segmenter__card {
  background: var(--surface-container-low);
  border: 1px solid var(--ghost-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-10);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

.segmenter__drop-zone {
  border: 2px dashed var(--outline-variant);
  border-radius: var(--radius-xl);
  padding: var(--spacing-16) var(--spacing-8);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-3);
  cursor: pointer;
  transition: border-color var(--transition-normal), background-color var(--transition-normal);
  text-align: center;
}

.segmenter__drop-zone:hover,
.segmenter__drop-zone.drag-over {
  border-color: rgba(255, 255, 255, 0.35);
  background-color: rgba(255, 255, 255, 0.03);
}

.segmenter__drop-icon {
  font-size: 3rem;
  color: var(--on-surface-variant);
  transition: color var(--transition-normal);
}

.segmenter__drop-zone:hover .segmenter__drop-icon,
.segmenter__drop-zone.drag-over .segmenter__drop-icon {
  color: var(--on-surface);
}

.segmenter__drop-label {
  font-family: var(--font-headline);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--on-surface);
}

.segmenter__drop-hint {
  font-size: 0.875rem;
  color: var(--on-surface-variant);
}

.segmenter__drop-link {
  color: var(--primary-fixed-dim);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.segmenter__workspace {
  display: none;
}

.segmenter__canvas-container {
  position: relative;
  width: 100%;
  height: 420px;
  max-height: 60vh;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: crosshair;
  border: 2px solid var(--ghost-border);
  background-size: 100% 100%;
  background-position: center;
  background-repeat: no-repeat;
  background-color: var(--surface-container);
}

#mask-output {
  position: absolute;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.6;
}

.segmenter__icon {
  height: 16px;
  width: 16px;
  position: absolute;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.segmenter__hint {
  font-size: 0.8125rem;
  color: var(--on-surface-variant);
  margin-top: calc(-1 * var(--spacing-3));
}

.segmenter__toolbar {
  display: flex;
  gap: var(--spacing-3);
  flex-wrap: wrap;
}

.segmenter__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-6);
  background: var(--on-surface);
  color: var(--surface);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity var(--transition-normal), transform var(--transition-fast);
}

.segmenter__btn:hover {
  opacity: 0.9;
}

.segmenter__btn:active {
  transform: scale(0.98);
}

.segmenter__btn:disabled {
  background: var(--surface-container-highest);
  color: var(--on-surface-variant);
  cursor: not-allowed;
  transform: none;
}

.segmenter__btn--secondary {
  background: transparent;
  color: var(--on-surface);
  border: 1px solid var(--outline-variant);
}

.segmenter__btn--secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  opacity: 1;
}

.segmenter__btn--secondary:disabled {
  background: transparent;
  color: var(--on-surface-variant);
  border-color: var(--ghost-border);
}

.segmenter__status {
  padding: var(--spacing-4);
  background: var(--surface-container);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  color: var(--on-surface-variant);
  min-height: 2.75rem;
  display: flex;
  align-items: center;
}

.segmenter__status--error {
  color: var(--error-container);
}

@media (max-width: 600px) {
  .segmenter__drop-zone {
    padding: var(--spacing-10) var(--spacing-4);
  }
  .segmenter__toolbar {
    flex-direction: column;
  }
  .segmenter__btn {
    justify-content: center;
  }
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.about {
  max-width: 48rem;
  width: 100%;
}

.about__title {
  font-family: var(--font-headline);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--on-surface);
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-4);
}

.about__lead {
  font-size: 1.25rem;
  color: var(--on-surface-variant);
  line-height: 1.7;
  margin-bottom: var(--spacing-12);
}

.about__section {
  margin-bottom: var(--spacing-12);
}

.about__section-title {
  font-family: var(--font-headline);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--on-surface);
  margin-bottom: var(--spacing-4);
}

.about__section p {
  color: var(--on-surface-variant);
  line-height: 1.8;
  font-size: 0.9375rem;
}

.about__section ul {
  list-style: none;
  padding: 0;
}

.about__section li {
  color: var(--on-surface-variant);
  font-size: 0.9375rem;
  padding: var(--spacing-2) 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.about__section li .material-symbols-outlined {
  color: var(--on-surface);
  font-size: 1.125rem;
}

/* ============================================================
   MOBILE HAMBURGER
   ============================================================ */
.hamburger {
  display: none;
  position: fixed;
  top: var(--spacing-4);
  left: var(--spacing-4);
  z-index: 60;
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  background: var(--surface-container-high);
  border-radius: var(--radius-lg);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--on-surface);
}

.hamburger .material-symbols-outlined {
  font-size: 1.5rem;
}

/* Mobile overlay */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 35;
}

/* ============================================================
   FADE-IN ANIMATION
   ============================================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
}

.animate-in--delay-1 { animation-delay: 0.1s; }
.animate-in--delay-2 { animation-delay: 0.2s; }
.animate-in--delay-3 { animation-delay: 0.3s; }
.animate-in--delay-4 { animation-delay: 0.4s; }
.animate-in--delay-5 { animation-delay: 0.5s; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .product-grid {
    grid-template-columns: 1fr;
  }

  .security-section {
    flex-direction: column;
    padding: var(--spacing-10);
  }

  .security-section__image {
    max-width: 100%;
    width: 100%;
  }
}

@media (max-width: 768px) {
  :root {
    --sidebar-width: 0px;
  }

  .sidebar {
    transform: translateX(-100%);
    width: 16rem;
    transition: transform var(--transition-normal);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay.open {
    display: block;
  }

  .hamburger {
    display: flex;
  }

  .header {
    width: 100%;
    padding: 0 var(--spacing-6);
    padding-left: 4rem;
  }

  .main {
    margin-left: 0;
    padding-left: var(--spacing-4);
    padding-right: var(--spacing-4);
    padding-top: 6rem;
  }

  .footer {
    margin-left: 0;
  }

  .hero__headline {
    font-size: 2rem;
  }

  .security-section {
    padding: var(--spacing-8);
  }

  .security-section__headline {
    font-size: 1.5rem;
  }
}