:root{
  --bg: #0b1220;
  --bg2: #0f172a;
  --card-bg: rgba(15, 23, 42, 0.62);
  --card-bg-strong: rgba(15, 23, 42, 0.78);
  --border: rgba(255,255,255,0.10);

  --text: #f8fafc;
  --text-muted: rgba(226, 232, 240, 0.68);

  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --danger: #ef4444;
  --success: #22c55e;

  --radius: 18px;
  --radius-sm: 12px;

  --shadow: 0 18px 50px rgba(0,0,0,0.35);
  --shadow-soft: 0 12px 28px rgba(0,0,0,0.22);

  --ring: 0 0 0 3px rgba(99, 102, 241, 0.22);

  --font: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
          Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
}

[dir="rtl"]{
  --font: "Segoe UI", Tahoma, Arial, "Noto Sans Arabic", sans-serif;
}

*{ box-sizing:border-box; margin:0; padding:0; -webkit-tap-highlight-color:transparent; }
html, body{ height:100%; }

body{
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1200px 700px at 20% 10%, rgba(99,102,241,0.12), transparent 60%),
    radial-gradient(900px 600px at 85% 80%, rgba(219,39,119,0.10), transparent 55%),
    linear-gradient(180deg, var(--bg), var(--bg2));
  min-height:100vh;
  overflow-x:hidden;
  line-height: 1.55;
}

/* Accessibility */
.skip-link{
  position:absolute;
  left: 12px;
  top: 12px;
  transform: translateY(-160%);
  background: rgba(2,6,23,0.92);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 12px;
  border-radius: 12px;
  text-decoration:none;
  z-index: 9999;
}
.skip-link:focus{ transform: translateY(0); outline:none; box-shadow: var(--ring); }

/* Background Orbs */
.orbs{
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}
.orb{
  position:absolute;
  border-radius: 999px;
  filter: blur(85px);
  opacity: 0.35;
  mix-blend-mode: screen;
  animation: float 18s ease-in-out infinite alternate;
}
.orb-1{ width: 320px; height: 320px; background: #4f46e5; top: -70px; left: -60px; }
.orb-2{ width: 420px; height: 420px; background: #7c3aed; bottom: -140px; right: -80px; animation-delay: -6s; }
.orb-3{ width: 260px; height: 260px; background: #db2777; top: 45%; left: 62%; animation-delay: -12s; }

@keyframes float{
  0%{ transform: translate3d(0,0,0) scale(1); }
  100%{ transform: translate3d(60px, 110px, 0) scale(1.12); }
}

/* Layout */
.app{ outline: none; }
.container{
  max-width: 720px;
  margin: 0 auto;
  padding: 22px;
  padding-bottom: 120px;
}

/* Nav */
.nav-bar{
  position: sticky;
  top: 0;
  z-index: 100;
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  background: rgba(10, 16, 28, 0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.logo{
  font-weight: 900;
  letter-spacing: -0.8px;
  font-size: 1.25rem;
  white-space: nowrap;
}
.logo span{ color: var(--primary); }

.nav-actions{ display:flex; align-items:center; gap: 10px; }
.btn-chip{
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease, border-color 0.15s ease;
}
.btn-chip:hover{ border-color: rgba(255,255,255,0.18); }
.btn-chip:active{ transform: scale(0.98); opacity: 0.92; }
.btn-chip:focus{ outline: none; box-shadow: var(--ring); }

.nav-links{
  display:flex;
  align-items:center;
  gap: 8px;
}
.nav-link{
  text-decoration:none;
  color: var(--text);
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 8px 12px;
  display:flex;
  align-items:center;
  gap: 8px;
  opacity: 0.7;
  transition: 0.2s ease;
  user-select: none;
}
.nav-link:hover{ opacity: 1; border-color: rgba(255,255,255,0.10); background: rgba(255,255,255,0.04); }
.nav-link.active{ opacity: 1; background: rgba(99,102,241,0.12); border-color: rgba(99,102,241,0.25); }
.nav-emoji{ font-size: 1.05rem; line-height: 1; }
.nav-text{ font-size: 0.95rem; font-weight: 800; }

/* View transitions */
.view{ animation: viewIn 220ms ease both; }
@keyframes viewIn{
  from{ opacity: 0; transform: translateY(6px); }
  to{ opacity: 1; transform: translateY(0); }
}

.view-header{
  margin: 18px 0 22px;
  text-align:center;
}
.view-header h1{
  font-size: clamp(1.55rem, 2.4vw, 2.1rem);
  letter-spacing: -0.6px;
  margin-bottom: 6px;
}
.view-header p{ color: var(--text-muted); font-size: 0.98rem; }

.section-title{
  font-size: 1.05rem;
  letter-spacing: -0.2px;
  margin-bottom: 14px;
}

/* Cards */
.card{
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-soft);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
  animation: fadeUp 320ms ease both;
}
.card + .card{ margin-top: 14px; }
.card:hover{
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: rgba(255,255,255,0.16);
}
@keyframes fadeUp{
  from{ opacity: 0; transform: translateY(10px); }
  to{ opacity: 1; transform: translateY(0); }
}

/* Forms */
.form-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 18px;
}
.input-group{ display:flex; flex-direction:column; gap: 8px; }
.input-group.full-width{ grid-column: span 2; }

label{
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

select, textarea, input{
  width:100%;
  background: rgba(2,6,23,0.30);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 14px;
  padding: 12px 12px;
  color: var(--text);
  font-size: 1rem;
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}
select:focus, textarea:focus, input:focus{
  border-color: rgba(99,102,241,0.55);
  box-shadow: var(--ring);
}
textarea{ min-height: 104px; resize: vertical; }

.hint{
  color: rgba(226,232,240,0.55);
  font-size: 0.85rem;
}

.tiny-note{
  margin-top: 12px;
  color: rgba(226,232,240,0.55);
  font-size: 0.82rem;
  text-align: center;
}

/* Buttons */
button{
  font-family: inherit;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease, border-color 0.15s ease, filter 0.15s ease;
}
button:active{ transform: scale(0.98); }

.btn-primary{
  width:100%;
  margin-top: 10px;
  background: linear-gradient(135deg, rgba(99,102,241,1), rgba(124,58,237,1));
  color: white;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: 1.06rem;
  font-weight: 900;
  cursor: pointer;
  display:flex;
  justify-content:center;
  align-items:center;
  gap: 10px;
  box-shadow: 0 16px 40px rgba(99,102,241,0.18);
}
.btn-primary:hover{ filter: brightness(1.05); box-shadow: 0 18px 46px rgba(99,102,241,0.22); }
.btn-primary:focus{ outline:none; box-shadow: var(--ring); }

.btn-primary:disabled,
#btn-generate:disabled{
  opacity: 0.6;
  cursor: not-allowed;
  filter: grayscale(0.2);
  transform: none;
  box-shadow: none;
}

.btn-secondary{
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  color: var(--text);
  padding: 11px 14px;
  border-radius: 14px;
  font-weight: 800;
  cursor: pointer;
}
.btn-secondary:hover{ border-color: rgba(255,255,255,0.18); box-shadow: 0 10px 24px rgba(0,0,0,0.18); }
.btn-secondary:focus{ outline:none; box-shadow: var(--ring); }

.btn-ghost{
  background: transparent;
  border: 1px solid rgba(255,255,255,0.10);
  color: var(--text-muted);
  padding: 11px 14px;
  border-radius: 14px;
  font-weight: 800;
  cursor: pointer;
}
.btn-ghost:hover{ color: var(--text); border-color: rgba(255,255,255,0.18); background: rgba(255,255,255,0.03); }
.btn-ghost:focus{ outline:none; box-shadow: var(--ring); }

.btn-sm{ padding: 8px 10px; font-size: 0.86rem; border-radius: 12px; }

.action-row{ display:flex; gap: 10px; flex-wrap: wrap; align-items:center; }
.header-actions{ display:flex; gap: 10px; margin-top: 14px; justify-content:center; flex-wrap: wrap; }

.divider{ height: 1px; background: rgba(255,255,255,0.08); margin: 18px 0; }

/* Loader (SINGLE SOURCE OF TRUTH) */
/* Make sure your HTML uses: <span class="loader-dots"><i></i><i></i><i></i></span> */
.loader-dots{
  display: none; /* shown by JS when generating */
  gap: 4px;
  align-items: center;
}
.loader-dots i{
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: white;
  opacity: 0.2;
  animation: dotPulse 1.2s infinite ease-in-out;
}
.loader-dots i:nth-child(2){ animation-delay: 0.15s; }
.loader-dots i:nth-child(3){ animation-delay: 0.30s; }

@keyframes dotPulse{
  0% { opacity: 0.2; transform: translateY(0); }
  20%{ opacity: 1; transform: translateY(-2px); }
  100%{ opacity: 0.2; transform: translateY(0); }
}

/* Output */
.output{ margin-top: 18px; }
.output-card{ margin-top: 18px; }

.output-head{
  display:flex;
  align-items:flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  background: rgba(99,102,241,0.12);
  border: 1px solid rgba(99,102,241,0.22);
  color: rgba(226,232,240,0.92);
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 900;
  font-size: 0.85rem;
}
.output-meta{ color: rgba(226,232,240,0.55); font-size: 0.86rem; margin-top: 4px; }

.output-section{ margin-top: 16px; }
.output-title{
  font-size: 0.82rem;
  color: rgba(199, 210, 254, 0.95);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  margin-bottom: 8px;
}
.output-box{
  background: rgba(2, 6, 23, 0.28);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 14px;
  padding: 14px;
  font-size: 0.98rem;
  white-space: pre-wrap;
}
.output-list{
  margin: 0;
  padding-left: 18px;
  display:grid;
  gap: 6px;
}
[dir="rtl"] .output-list{ padding-left: 0; padding-right: 18px; }

.action-buttons{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 12px;
}

/* Skeleton */
.skeleton{
  position: relative;
  overflow: hidden;
  border-radius: 14px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.06);
  height: 14px;
}
.skeleton::after{
  content:"";
  position:absolute;
  inset: 0;
  transform: translateX(-120%);
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12), transparent);
  animation: shimmer 1.1s infinite;
}
@keyframes shimmer{
  100%{ transform: translateX(120%); }
}
.skel-block{ height: 120px; }
.skel-line{ height: 12px; margin-top: 10px; }

/* Library */
.search-bar{
  display:flex;
  gap: 10px;
  margin-top: 14px;
}
.library-items{ margin-top: 18px; display:grid; gap: 12px; }

.lib-item{
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card-bg-strong);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}
.lib-item summary{
  list-style: none;
  cursor: pointer;
  padding: 16px 16px;
  display:flex;
  align-items:flex-start;
  justify-content: space-between;
  gap: 10px;
}
.lib-item summary::-webkit-details-marker{ display:none; }

.lib-title{
  font-weight: 900;
  letter-spacing: -0.2px;
  font-size: 1.02rem;
}
.lib-meta{
  margin-top: 6px;
  color: rgba(226,232,240,0.55);
  font-size: 0.86rem;
}
.lib-chevron{
  opacity: 0.7;
  font-size: 0.95rem;
  transform: translateY(2px);
  transition: transform 0.2s ease;
}
.lib-item[open] .lib-chevron{ transform: rotate(180deg) translateY(-2px); opacity: 1; }

.lib-body{
  padding: 0 16px 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.lib-body .output-section{ margin-top: 14px; }

/* Help */
.help-steps{ list-style:none; margin-top: 18px; display:grid; gap: 14px; }
.help-steps li{ display:flex; gap: 12px; align-items:flex-start; }
.step-num{
  width: 34px;
  height: 34px;
  border-radius: 999px;
  display:flex;
  align-items:center;
  justify-content:center;
  background: rgba(99,102,241,0.92);
  border: 1px solid rgba(255,255,255,0.14);
  font-weight: 900;
  flex-shrink: 0;
}
.disclaimer{ margin-top: 18px; text-align:center; color: rgba(226,232,240,0.55); font-size: 0.86rem; }

/* Toast */
#toast-container{
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  width: min(92vw, 420px);
  pointer-events: none;
}
.toast{
  pointer-events: all;
  display:flex;
  align-items:flex-start;
  gap: 10px;
  background: rgba(2,6,23,0.92);
  border: 1px solid rgba(255,255,255,0.10);
  color: var(--text);
  padding: 12px 14px;
  border-radius: 14px;
  box-shadow: var(--shadow);
  margin-top: 10px;
  animation: toastIn 220ms ease both;
}
.toast .toast-dot{
  width: 10px; height: 10px; border-radius: 999px; margin-top: 4px;
  background: rgba(99,102,241,0.95);
  flex-shrink: 0;
}
.toast.success .toast-dot{ background: rgba(34,197,94,0.95); }
.toast.danger .toast-dot{ background: rgba(239,68,68,0.95); }
.toast .toast-text{ font-size: 0.95rem; color: rgba(226,232,240,0.92); }
@keyframes toastIn{
  from{ transform: translateY(10px); opacity: 0; }
  to{ transform: translateY(0); opacity: 1; }
}

/* RTL tweaks */
[dir="rtl"] select, [dir="rtl"] textarea, [dir="rtl"] input{ text-align: right; }
[dir="rtl"] label{ letter-spacing: 0.02em; }

/* Mobile nav (bottom pill bar) */
@media (max-width: 560px){
  .container{ padding: 16px; padding-bottom: 150px; }
  .nav-bar{ padding: 12px 14px; }

  .nav-links{
    position: fixed;
    left: 50%;
    bottom: 12px;
    transform: translateX(-50%);
    background: rgba(10,16,28,0.72);
    backdrop-filter: blur(14px);
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: 999px;
    padding: 8px;
    box-shadow: var(--shadow);
    gap: 6px;
  }
  .nav-link{ padding: 10px 12px; }
  .nav-text{ display: none; }

  .form-grid{ grid-template-columns: 1fr; }
  .input-group.full-width{ grid-column: span 1; }

  .output-head{
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .action-buttons{ grid-template-columns: 1fr; }
  .search-bar{ flex-direction: column; }

  .action-row button{
    flex: 1 1 48%;
  }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce){
  *{
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .orb{ display:none; }
}