@import url("https://api.fontshare.com/v2/css?f[]=satoshi@400,500,700,900&f[]=general-sans@400,500,600,700&display=swap");

:root,
[data-theme="default"],
[data-theme="dark"] {
  --font-body: "Satoshi", "Inter", sans-serif;
  --font-display: "General Sans", "Satoshi", sans-serif;
  --font-code: "JetBrains Mono", "Fira Code", "Consolas", monospace;

  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  --color-bg: #0d0d10;
  --color-bg-soft: #141418;
  --color-surface: #19191f;
  --color-surface-2: #202029;
  --color-surface-3: #292938;
  --color-border: #333341;
  --color-border-strong: #4a4a5d;
  --color-text: #f4f2ec;
  --color-muted: #a9a5a0;
  --color-faint: #706d6c;
  --color-primary: #ff8a1f;
  --color-primary-2: #ffc46b;
  --color-primary-dark: #c95f00;
  --color-success: #61d394;
  --color-error: #ff6b7a;
  --color-warning: #ffd166;
  --color-info: #74b9ff;
  --glow-orange: 0 0 0 1px rgba(255, 138, 31, 0.38), 0 0 28px rgba(255, 138, 31, 0.2);
  --shadow-card: 0 18px 60px rgba(0, 0, 0, 0.34);
  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
  --color-bg: #f8f4ed;
  --color-bg-soft: #fffaf2;
  --color-surface: #ffffff;
  --color-surface-2: #f1ece4;
  --color-surface-3: #e8dfd3;
  --color-border: #d8cec1;
  --color-border-strong: #bba994;
  --color-text: #201b16;
  --color-muted: #675d53;
  --color-faint: #948779;
  --color-primary: #c95800;
  --color-primary-2: #ff8a1f;
  --color-primary-dark: #8f3d00;
  --color-success: #247a45;
  --color-error: #ad2941;
  --color-warning: #8c5a00;
  --color-info: #1769aa;
  --glow-orange: 0 0 0 1px rgba(201, 88, 0, 0.32), 0 0 24px rgba(201, 88, 0, 0.14);
  --shadow-card: 0 18px 60px rgba(97, 63, 24, 0.16);
}

[data-theme="matrix"] {
  --color-bg: #020703;
  --color-bg-soft: #06110a;
  --color-surface: #08150c;
  --color-surface-2: #0b2111;
  --color-surface-3: #103018;
  --color-border: #1f5f31;
  --color-border-strong: #42d66b;
  --color-text: #dcffe5;
  --color-muted: #80d998;
  --color-faint: #4e8c5f;
  --color-primary: #21ff66;
  --color-primary-2: #a7ffbe;
  --color-primary-dark: #00aa3b;
  --color-success: #21ff66;
  --color-error: #ff5f7a;
  --color-warning: #d7ff67;
  --color-info: #48ffc9;
  --glow-orange: 0 0 0 1px rgba(33, 255, 102, 0.45), 0 0 30px rgba(33, 255, 102, 0.24);
  --shadow-card: 0 22px 70px rgba(0, 255, 80, 0.08);
}

[data-theme="blue"] {
  --color-bg: #17317c;
  --color-bg-soft: #1f3f9b;
  --color-surface: #1e3a8a;
  --color-surface-2: #2146a8;
  --color-surface-3: #2f5bc0;
  --color-border: rgba(255, 255, 255, 0.28);
  --color-border-strong: rgba(255, 255, 255, 0.48);
  --color-text: #ffffff;
  --color-muted: #e2e8f0;
  --color-faint: #bfd2ff;
  --color-primary: #93c5fd;
  --color-primary-2: #ffffff;
  --color-primary-dark: #60a5fa;
  --color-success: #5eead4;
  --color-error: #fecdd3;
  --color-warning: #fde68a;
  --color-info: #dbeafe;
  --glow-orange: 0 0 0 1px rgba(255, 255, 255, 0.28), 0 18px 60px rgba(6, 20, 64, 0.28);
  --shadow-card: 0 18px 60px rgba(0, 0, 0, 0.24);
}

[data-theme="mono"] {
  --color-bg: #000000;
  --color-bg-soft: #090909;
  --color-surface: #111111;
  --color-surface-2: #181818;
  --color-surface-3: #242424;
  --color-border: rgba(255, 255, 255, 0.16);
  --color-border-strong: rgba(255, 255, 255, 0.36);
  --color-text: #f8f8f8;
  --color-muted: rgba(255, 255, 255, 0.78);
  --color-faint: rgba(255, 255, 255, 0.52);
  --color-primary: #ffffff;
  --color-primary-2: #ffffff;
  --color-primary-dark: #d7d7d7;
  --color-success: #ffffff;
  --color-error: #ffffff;
  --color-warning: #ffffff;
  --color-info: #ffffff;
  --glow-orange: 0 0 0 1px rgba(255, 255, 255, 0.22), 0 0 34px rgba(255, 255, 255, 0.08);
  --shadow-card: 0 18px 60px rgba(0, 0, 0, 0.7);
}

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

html {
  min-height: 100%;
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background:
    radial-gradient(circle at 22% 0%, rgba(255, 138, 31, 0.18), transparent 30rem),
    radial-gradient(circle at 92% 8%, rgba(255, 196, 107, 0.08), transparent 28rem),
    var(--color-bg);
  line-height: 1.55;
}

[data-theme="matrix"] body {
  background:
    linear-gradient(rgba(33, 255, 102, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(33, 255, 102, 0.025) 1px, transparent 1px),
    radial-gradient(circle at 20% 0%, rgba(33, 255, 102, 0.18), transparent 28rem),
    #020703;
  background-size: 32px 32px, 32px 32px, auto, auto;
}

[data-theme="blue"] body {
  background:
    linear-gradient(135deg, rgba(23, 49, 124, 0.94), rgba(31, 63, 155, 0.96)),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px 12px);
}

[data-theme="mono"] body {
  background: #000000;
}

body.auth-page {
  overflow-x: hidden;
}

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

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

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

textarea,
input {
  border: 0;
  outline: 0;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

::selection {
  background: rgba(255, 138, 31, 0.28);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.app-shell,
.auth-shell {
  width: min(100%, 1600px);
  margin: 0 auto;
}

.page-topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) clamp(var(--space-4), 4vw, var(--space-8));
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(18px);
}

[data-theme="light"] .page-topbar {
  border-bottom-color: rgba(0, 0, 0, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  min-width: max-content;
}

.brand-mark {
  width: 2.35rem;
  height: 2.35rem;
  color: var(--color-primary);
  filter: drop-shadow(0 0 14px rgba(255, 138, 31, 0.34));
}

.brand-copy strong {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
}

.brand-copy span {
  display: block;
  color: var(--color-muted);
  font-size: var(--text-xs);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-link,
.button,
.ghost-button,
.icon-button,
.tab-button,
.task-helper-button,
.task-complete-button,
.quiz-option,
.day-chip {
  transition:
    transform var(--transition),
    color var(--transition),
    background var(--transition),
    border-color var(--transition),
    box-shadow var(--transition),
    opacity var(--transition);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 2.4rem;
  padding: var(--space-2) var(--space-3);
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  color: var(--color-muted);
  font-size: var(--text-sm);
  background: transparent;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--color-text);
  border-color: var(--color-border);
  background: var(--color-surface-2);
}

.button,
.ghost-button,
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 2.65rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 700;
}

.button {
  padding: var(--space-2) var(--space-5);
  color: #17120d;
  background: linear-gradient(135deg, var(--color-primary-2), var(--color-primary));
  box-shadow: var(--glow-orange);
}

.button:hover,
.ghost-button:hover,
.icon-button:hover,
.task-helper-button:hover,
.task-complete-button:hover,
.quiz-option:hover {
  transform: translateY(-1px);
}

.button:active,
.ghost-button:active,
.icon-button:active,
.task-helper-button:active,
.task-complete-button:active,
.quiz-option:active {
  transform: translateY(0);
}

.ghost-button,
.icon-button {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
}

.ghost-button {
  padding: var(--space-2) var(--space-4);
}

.icon-button {
  width: 2.65rem;
  padding: 0;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  width: max-content;
  min-height: 1.85rem;
  padding: var(--space-1) var(--space-3);
  border: 1px solid rgba(255, 138, 31, 0.28);
  border-radius: var(--radius-full);
  color: var(--color-primary-2);
  background: rgba(255, 138, 31, 0.09);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.muted {
  color: var(--color-muted);
}

.mono {
  font-family: var(--font-code);
}

.auth-shell {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: var(--space-6);
}

.auth-grid {
  width: min(100%, 1120px);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-8);
  align-items: center;
}

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

.auth-hero h1 {
  margin-top: var(--space-5);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.auth-hero p {
  margin-top: var(--space-4);
  color: var(--color-muted);
  max-width: 60ch;
}

.feature-list {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-8);
  list-style: none;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-muted);
}

.feature-list li::before {
  content: "";
  width: 0.65rem;
  height: 0.65rem;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  box-shadow: 0 0 16px rgba(255, 138, 31, 0.55);
}

.auth-card,
.panel,
.dashboard-card,
.task-card,
.quiz-card,
.doc-card,
.editor-shell,
.notes-shell,
.helper-panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  background: color-mix(in srgb, var(--color-surface) 92%, transparent);
  box-shadow: var(--shadow-card);
}

.auth-card {
  padding: var(--space-6);
}

.auth-card h2 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
}

.form-stack {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.field {
  display: grid;
  gap: var(--space-2);
}

.field label {
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 700;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg-soft);
  padding: var(--space-3) var(--space-4);
}

.field input:focus,
.field textarea:focus {
  border-color: var(--color-primary);
  box-shadow: var(--glow-orange);
}

.auth-error {
  min-height: 1.5rem;
  color: var(--color-error);
  font-size: var(--text-sm);
}

.mini-code-window {
  margin-top: var(--space-8);
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: #101014;
}

.window-dots {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.window-dots span {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: var(--radius-full);
  background: var(--color-primary);
}

.mini-code-window pre {
  padding: var(--space-4);
  color: #f9d29d;
  font-family: var(--font-code);
  font-size: var(--text-sm);
  overflow: auto;
}

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

@media (max-width: 980px) {
  .auth-grid {
    grid-template-columns: 1fr;
  }

  .auth-hero {
    padding: var(--space-3);
  }
}

@media (max-width: 720px) {
  .page-topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .topbar-actions {
    justify-content: flex-start;
  }
}