/* ============================================================
   Life Dashboard — style.css
   Single stylesheet: variables, base, layout, components
   ============================================================ */

/* ── 1. CSS Custom Properties (Light theme default) ───────── */
:root {
  /* Colors */
  --color-bg:          #f0f2f5;
  --color-surface:     #ffffff;
  --color-surface-alt: #f8f9fa;
  --color-border:      #dee2e6;
  --color-text:        #212529;
  --color-text-muted:  #6c757d;
  --color-primary:     #4361ee;
  --color-primary-h:   #3a56d4;
  --color-success:     #2dc653;
  --color-success-h:   #25a845;
  --color-warning:     #f4a261;
  --color-warning-h:   #e08c4a;
  --color-danger:      #e63946;
  --color-danger-h:    #cc2f3b;
  --color-secondary:   #6c757d;
  --color-secondary-h: #5a6268;

  /* Typography */
  --font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-size-base: 15px;
  --font-size-sm:   13px;
  --font-size-lg:   18px;
  --font-size-xl:   24px;
  --font-size-2xl:  36px;
  --font-size-3xl:  56px;
  --line-height:    1.5;

  /* Spacing */
  --space-xs:  4px;
  --space-sm:  8px;
  --space-md:  16px;
  --space-lg:  24px;
  --space-xl:  32px;
  --space-2xl: 48px;

  /* Borders & Shadows */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  18px;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.12);

  /* Transitions */
  --transition: 0.18s ease;
}

/* ── 2. Dark Theme Overrides ──────────────────────────────── */
[data-theme="dark"] {
  --color-bg:          #0f1117;
  --color-surface:     #1a1d27;
  --color-surface-alt: #22263a;
  --color-border:      #2e3347;
  --color-text:        #e8eaf0;
  --color-text-muted:  #8b92a8;
  --color-primary:     #5b7cfa;
  --color-primary-h:   #7090ff;
  --color-success:     #3dd68c;
  --color-success-h:   #52e09e;
  --color-warning:     #f4a261;
  --color-warning-h:   #f7b87a;
  --color-danger:      #ff6b6b;
  --color-danger-h:    #ff8585;
  --color-secondary:   #8b92a8;
  --color-secondary-h: #a0a8be;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.30);
  --shadow-md:  0 4px 16px rgba(0,0,0,.40);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.50);
}

/* ── 3. Reset & Base ──────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  background-color: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  transition: background-color var(--transition), color var(--transition);
}

ul {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-base);
}

input {
  font-family: inherit;
  font-size: var(--font-size-base);
}

/* Screen-reader only utility */
.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;
}

/* ── 4. Top Bar ───────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-lg);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition), border-color var(--transition);
}

.topbar__brand {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.3px;
}

/* ── 5. Buttons ───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
  transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
  min-height: 38px;
}

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

.btn:active {
  transform: scale(0.97);
}

.btn--primary {
  background-color: var(--color-primary);
  color: #fff;
}
.btn--primary:hover {
  background-color: var(--color-primary-h);
  box-shadow: var(--shadow-sm);
}

.btn--success {
  background-color: var(--color-success);
  color: #fff;
}
.btn--success:hover {
  background-color: var(--color-success-h);
}

.btn--warning {
  background-color: var(--color-warning);
  color: #fff;
}
.btn--warning:hover {
  background-color: var(--color-warning-h);
}

.btn--danger {
  background-color: var(--color-danger);
  color: #fff;
}
.btn--danger:hover {
  background-color: var(--color-danger-h);
}

.btn--secondary {
  background-color: var(--color-secondary);
  color: #fff;
}
.btn--secondary:hover {
  background-color: var(--color-secondary-h);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-text-muted);
  padding: var(--space-xs) var(--space-sm);
  min-height: unset;
}
.btn--ghost:hover {
  color: var(--color-danger);
  background-color: var(--color-surface-alt);
}

.btn--icon {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-lg);
  color: var(--color-text);
  min-height: 38px;
  transition: background-color var(--transition), border-color var(--transition);
}
.btn--icon:hover {
  background-color: var(--color-surface-alt);
}

/* ── 6. Inputs ────────────────────────────────────────────── */
.input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition), background-color var(--transition);
  min-height: 38px;
}

.input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(67,97,238,.18);
}

.input::placeholder {
  color: var(--color-text-muted);
}

.input--small {
  width: 90px;
}

.label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ── 7. Dashboard Grid Layout ─────────────────────────────── */
.dashboard {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-lg);
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
  grid-template-areas:
    "hero"
    "timer"
    "tasks"
    "links";
}

@media (min-width: 700px) {
  .dashboard {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "hero  hero"
      "timer tasks"
      "links links";
  }
}

@media (min-width: 1024px) {
  .dashboard {
    grid-template-columns: 1fr 1.4fr 1fr;
    grid-template-areas:
      "hero  hero  hero"
      "timer tasks links";
  }
}

/* ── 8. Card Base ─────────────────────────────────────────── */
.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  transition: background-color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.card__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

/* ── 9. Hero Section ──────────────────────────────────────── */
.hero {
  grid-area: hero;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  background: linear-gradient(135deg, var(--color-primary) 0%, #7b2ff7 100%);
  border-color: transparent;
  color: #fff;
}

.hero__time-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.hero__time {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1;
  color: #fff;
}

.hero__date {
  font-size: var(--font-size-lg);
  color: rgba(255,255,255,.80);
  font-weight: 500;
}

.hero__greeting-block {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-sm);
}

.hero__greeting {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: #fff;
  text-align: right;
}

.hero__name-form {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.hero__name-form .input {
  background-color: rgba(255,255,255,.20);
  border-color: rgba(255,255,255,.40);
  color: #fff;
  width: 180px;
}

.hero__name-form .input::placeholder {
  color: rgba(255,255,255,.65);
}

.hero__name-form .input:focus {
  background-color: rgba(255,255,255,.30);
  border-color: #fff;
  box-shadow: 0 0 0 3px rgba(255,255,255,.25);
}

.hero__name-form .btn--primary {
  background-color: rgba(255,255,255,.25);
  border: 1px solid rgba(255,255,255,.50);
}
.hero__name-form .btn--primary:hover {
  background-color: rgba(255,255,255,.40);
}

/* ── 10. Focus Timer ──────────────────────────────────────── */
.timer {
  grid-area: timer;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.timer__display {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  text-align: center;
  color: var(--color-primary);
  letter-spacing: 2px;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  padding: var(--space-md) 0;
}

.timer__notification {
  background-color: var(--color-success);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: var(--space-sm) var(--space-md);
  text-align: center;
  font-weight: 600;
  font-size: var(--font-size-sm);
  animation: fadeIn .3s ease;
}

.timer__notification[hidden] {
  display: none;
}

.timer__controls {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

.timer__duration-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-md);
}

.timer__duration-row {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

/* ── 11. Task List ────────────────────────────────────────── */
.tasks {
  grid-area: tasks;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.task-form {
  display: flex;
  gap: var(--space-sm);
}

.task-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-height: 420px;
  overflow-y: auto;
  padding-right: var(--space-xs);
}

/* Scrollbar styling */
.task-list::-webkit-scrollbar,
.links-list::-webkit-scrollbar {
  width: 5px;
}
.task-list::-webkit-scrollbar-track,
.links-list::-webkit-scrollbar-track {
  background: var(--color-surface-alt);
  border-radius: 10px;
}
.task-list::-webkit-scrollbar-thumb,
.links-list::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 10px;
}

.task-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition), border-color var(--transition);
  animation: slideIn .2s ease;
}

.task-item:hover {
  border-color: var(--color-primary);
}

/* Completed task visual distinction */
.task-item--completed .task-item__text {
  text-decoration: line-through;
  opacity: 0.5;
}

.task-item__checkbox {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.task-item__text {
  flex: 1;
  font-size: var(--font-size-base);
  word-break: break-word;
  color: var(--color-text);
  transition: opacity var(--transition);
}

.task-item__edit-input {
  flex: 1;
  padding: 2px var(--space-sm);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-text);
  font-size: var(--font-size-base);
}

.task-item__edit-input:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(67,97,238,.18);
}

.task-item__actions {
  display: flex;
  gap: var(--space-xs);
  flex-shrink: 0;
}

.task-item__btn {
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 15px;
  padding: 2px 4px;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  transition: color var(--transition), background-color var(--transition);
  line-height: 1;
}

.task-item__btn:hover {
  color: var(--color-text);
  background-color: var(--color-border);
}

.task-item__btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.task-item__btn--delete:hover {
  color: var(--color-danger);
}

.task-item__btn--save:hover {
  color: var(--color-success);
}

.task-empty {
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  padding: var(--space-lg) 0;
}

/* ── 12. Quick Links ──────────────────────────────────────── */
.links {
  grid-area: links;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.link-form {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.link-form .input {
  flex: 1;
  min-width: 120px;
}

.links-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  max-height: 260px;
  overflow-y: auto;
  padding-right: var(--space-xs);
}

.link-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  background-color: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: border-color var(--transition), background-color var(--transition), box-shadow var(--transition);
  animation: slideIn .2s ease;
}

.link-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.link-item__btn {
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-primary);
  padding: 0;
  transition: color var(--transition);
  text-decoration: none;
}

.link-item__btn:hover {
  color: var(--color-primary-h);
  text-decoration: underline;
}

.link-item__btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

.link-item__delete {
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 13px;
  color: var(--color-text-muted);
  padding: 0 2px;
  line-height: 1;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}

.link-item__delete:hover {
  color: var(--color-danger);
}

.link-item__delete:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

/* ── 13. Footer ───────────────────────────────────────────── */
.footer {
  text-align: center;
  padding: var(--space-lg);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-md);
  transition: border-color var(--transition);
}

/* ── 14. Animations ───────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-8px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ── 15. Responsive Tweaks ────────────────────────────────── */
@media (max-width: 480px) {
  .hero {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero__greeting-block {
    align-items: flex-start;
  }

  .hero__greeting {
    text-align: left;
  }

  .hero__time {
    font-size: 40px;
  }

  .timer__display {
    font-size: 48px;
  }

  .task-form {
    flex-direction: column;
  }

  .link-form {
    flex-direction: column;
  }
}

@media (max-width: 320px) {
  .dashboard {
    padding: var(--space-sm);
  }

  .hero__time {
    font-size: 32px;
  }
}