/* ==========================================================
   DueWatcher demo v1 — Main Stylesheet
   Author: Zafer Yilmaz
   Description:
     - Mobile-first, offline-friendly PWA layout
     - Plain but functional design
     - Light & dark themes
     - Focus on clarity, spacing, and accessibility
   ========================================================== */

/* ----------------------------------------------------------
   1. UNIVERSAL RESET
   ---------------------------------------------------------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  line-height: 1.5;
}

a {
  color: var(--primary);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* ----------------------------------------------------------
   2. ROOT VARIABLES — LIGHT THEME DEFAULT
   ---------------------------------------------------------- */
:root {
  --primary: #1976d2;
  --secondary: #555;
  --bg: #ffffff;
  --surface: #fafafa;
  --text: #222;
  --text-muted: #666;
  --border: #ddd;
  --radius: 0.5rem;
  --max-width: 720px;
  --shadow: rgba(0, 0, 0, 0.08);
  --hover-bg: #f8f9fa;
}

/* ----------------------------------------------------------
   3. DARK THEME OVERRIDES
   ---------------------------------------------------------- */
[data-theme="dark"] {
  --primary: #64b5f6;
  --secondary: #bbb;
  --bg: #121212;
  --surface: #1e1e1e;
  --text: #eee;
  --text-muted: #aaa;
  --border: #333;
  --shadow: rgba(255, 255, 255, 0.05);
  --hover-bg: #2a2a2a;
}

/* ----------------------------------------------------------
   4. GLOBAL LAYOUT
   ---------------------------------------------------------- */
body {
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding: 1rem;
  transition: background 0.3s, color 0.3s;
}

/* Center main content and limit width */
main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  margin-bottom: 1rem;
}

/* ----------------------------------------------------------
   5. HEADER
   ---------------------------------------------------------- */
header {
  text-align: center;
  margin-bottom: 1rem;
}
header h1 {
  font-size: 1.75rem;
  margin-bottom: 0.25rem;
  font-variant: small-caps;
  font-family: Georgia, "Times New Roman", Times, serif;
  color: var(--primary);
}
header .tagline {
  font-size: 0.9rem;
  color: var(--secondary);
}

/* ----------------------------------------------------------
   6. SUMMARY SECTION
   ---------------------------------------------------------- */

.summary {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: 0 1px 3px var(--shadow);
  padding: 0.7rem;
  text-align: center;
  transition: all 0.3s ease;
}

.summary-card {
  display: grid;
  grid-template-columns: repeat(2, 1fr); /* Mobile: 2 columns */
  gap: 1rem;
  width: 100%;
}

/* Horizontal item layout */
.summary-item {
  display: flex;
  flex-direction: row; /* ← horizontal layout */
  align-items: center; /* vertical alignment */
  justify-content: center; /* centered group */
  flex-wrap: wrap;

  gap: 0.5rem; /* spacing between emoji, number, label */

  padding: 0.5rem;
  background: var(--surface);
  border-radius: 0.75rem;
  text-align: center;
}

.summary-item .emoji {
  font-size: 1.1rem;
}

.summary-item strong {
  font-size: 1rem;
  color: var(--primary);
}

.summary-item small {
  font-size: 0.85rem;
  opacity: 0.7;
}

/* ============================
   Tablet: 4 items per row
   Financial items row 2
   ============================ */
@media (min-width: 600px) {
  .summary-card {
    grid-template-columns: repeat(4, 1fr);
  }

  /* Paid + Unpaid move to second row */
  .summary-item:nth-child(5),
  .summary-item:nth-child(6) {
    grid-column: span 2; /* Wide items */
  }
}

/* ----------------------------------------------------------
   7. FORM SECTION
   ---------------------------------------------------------- */
#form-section {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: 0 1px 3px var(--shadow);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  justify-content: center; /* centers horizontally */
}

#toggle-form-btn {
  font-size: 1.2rem;
  align-self: center;
  border-radius: 50%;
}

#due-form {
  display: none; /* hidden by default — toggled via JS */
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1rem;
}
#due-form.active {
  display: flex;
}
#due-form h2 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

/* Inputs */
input,
select {
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  transition: border-color 0.2s, background 0.2s;
  margin-bottom: 0.5rem;
}
input:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
}

select {
  cursor: pointer;
}

/* Form buttons */
.form-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

/* temporary attention highlight when editing an item */
#due-form.highlight {
  box-shadow: 0 0 0 4px rgba(25, 118, 210, 0.08);
  transition: box-shadow 0.25s ease;
}

/* ----------------------------------------------------------
   8. BUTTONS
   ---------------------------------------------------------- */
.btn {
  padding: 0.6rem 1rem;
  border-radius: var(--radius);
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, opacity 0.2s, border 0.2s;
}
.btn.primary {
  background: var(--primary);
  color: #fff;
}
.btn.primary:hover {
  opacity: 0.9;
}
.btn.secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
[data-theme="dark"] .btn.secondary {
  background: #1c1c1c;
  border-color: #444;
  color: #eee;
}
.btn.secondary:hover {
  background: var(--surface);
}
.btn.danger {
  background: #e53935;
  color: #fff;
}
.btn.danger:hover {
  opacity: 0.85;
}

/* ----------------------------------------------------------
   9. DUE LIST SECTION
   ---------------------------------------------------------- */
#due-list-section {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: 0 1px 3px var(--shadow);
  padding: 1rem;
}
#due-list-section h2 {
  margin-bottom: 1rem;
}
#due-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.due-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  transition: background 0.2s;
}

.due-item:hover {
  background: var(--hover-bg);
}

.due-info {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.due-actions {
  display: flex;
  gap: 1rem;
}

.toggle-btn,
.edit-btn,
.delete-btn {
  font-size: 0.9rem;
  padding: 0.5rem;
  cursor: pointer;
}

.due-actions {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.toggle-btn,
.edit-btn,
.delete-btn {
  background: transparent;
  border: none;
  border-radius: 8px;
  padding: 0.45rem 0.55rem;
  font-size: 1.05rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.15s ease;
}

/* Hover & focus feedback */
.toggle-btn:hover,
.edit-btn:hover,
.delete-btn:hover,
.toggle-btn:focus,
.edit-btn:focus,
.delete-btn:focus {
  background: var(--surface);
  transform: translateY(-1px);
}

/* Individual color cues */
.toggle-btn {
  color: var(--accent);
}

.edit-btn {
  color: #f59e0b; /* amber tone */
}

.delete-btn {
  color: #ef4444; /* red tone */
}

/* Dark mode tweak (so hover stands out) */
[data-theme="dark"] .toggle-btn:hover,
[data-theme="dark"] .edit-btn:hover,
[data-theme="dark"] .delete-btn:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* Accessibility: focus ring */
.toggle-btn:focus-visible,
.edit-btn:focus-visible,
.delete-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Due item color indicators */
.due-item.overdue {
  border-left: 4px solid #e53935;
}
.due-item.soon {
  border-left: 4px solid #fbc02d;
}
.due-item.done {
  border-left: 4px solid #43a047;
  opacity: 0.7;
}

.due-date {
  font-weight: 500;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  transition: background 0.3s ease, color 0.3s ease;
}
/* Inherited from parent list item */
li.overdue .due-date {
  background-color: rgba(255, 0, 0, 0.1);
  color: #d00;
}

li.soon .due-date {
  background-color: rgba(255, 165, 0, 0.15);
  color: #b35a00;
}

li.done .due-info,
li.done .due-date,
li.done strong {
  color: var(--text-secondary);
  opacity: 0.7;
}

/* Neutral due dates (not soon, not overdue, not done) */
li:not(.overdue):not(.soon):not(.done) .due-date {
  color: var(--text-secondary);
  background-color: rgba(0, 0, 0, 0.07); /* very light gray */
  opacity: 0.9;
  border-radius: 4px;
  padding: 0.1em 0.4em;
}

.due-amount {
  font-family: monospace;
  font-weight: 500;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.due-meta {
  text-transform: capitalize;
  font-size: 0.8rem;
}

/* ----------------------------------------------------------
   10. SETTINGS SECTION
   ---------------------------------------------------------- */
#settings-section {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: 0 1px 3px var(--shadow);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  font-family: "Courier New", Courier, monospace;
  margin-bottom: 0.5rem;
}
.settings-intro {
  margin-bottom: 1rem;
}
.settings-intro p {
  font-size: 0.9rem;
  color: var(--secondary);
}

.settings-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

/* ----------------------------------------------------------
   11. FLOATING ACTION BUTTON (Mobile Quick Add)
   ---------------------------------------------------------- */
.fab {
  position: fixed;
  bottom: 2rem;
  right: 1.5rem;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  width: 3.3rem;
  height: 3.3rem;
  font-size: 1.8rem;
  line-height: 3.2rem;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  cursor: pointer;
  z-index: 10;
  border: none;
  box-shadow: 0 3px 6px var(--shadow);
}

/* ----------------------------------------------------------
   12. FOOTER
   ---------------------------------------------------------- */
footer {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--secondary);
  border-top: 1px solid var(--border);
  margin-top: 2rem;
  padding: 1.5rem 1rem;
}

footer h3 {
  font-variant: small-caps;
  font-family: Georgia, "Times New Roman", Times, serif;
  color: var(--primary);
}

/* ----------------------------------------------------------
   13. RESPONSIVE ADJUSTMENTS
   ---------------------------------------------------------- */
@media (min-width: 600px) {
  body {
    padding: 2rem;
  }
  main {
    gap: 2rem;
  }
  .fab {
    bottom: 2rem;
    right: 2rem;
  }
}