/* ============================================================
   Group 11 – LAMP Stack Contact Manager
   styles.css  |  Neutral / Minimal aesthetic
   Fonts: DM Sans (body) + DM Mono (accents/labels)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&family=DM+Mono:wght@300;400;500&display=swap');

/* ── Custom Properties ─────────────────────────────────────── */
:root {
  --bg:           #f5f4f2;
  --surface:      #ffffff;
  --surface-2:    #f0eeec;
  --border:       #dddad6;
  --border-focus: #999490;

  --text-primary:   #1a1917;
  --text-secondary: #6b6760;
  --text-muted:     #a09d99;

  --accent:         #3a3733;
  --accent-hover:   #1a1917;
  --accent-subtle:  #eceae7;

  --danger:         #c0392b;
  --danger-subtle:  #fdf1f0;
  --success:        #27714d;
  --success-subtle: #f0faf5;

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:  0 4px 16px rgba(0,0,0,.08), 0 1px 4px rgba(0,0,0,.04);
  --shadow-lg:  0 12px 40px rgba(0,0,0,.10), 0 2px 8px rgba(0,0,0,.05);

  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;

  --transition: 150ms cubic-bezier(.4,0,.2,1);
}

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

html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
}

/* ── Typography ────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

/* ── Page-level layout ─────────────────────────────────────── */

/* Centered card wrapper — used by login/signup */
.page-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

/* Horizontal rule / divider */
hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 20px 0;
}

/* ── Site header / title ───────────────────────────────────── */
#title,
h1#title {
  font-family: var(--font-body);
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  padding: 28px 32px 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

#title::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ── App shell (post-login) ────────────────────────────────── */
.app-shell {
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
}

.app-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.app-header h1 {
  font-size: 1.15rem;
  font-weight: 600;
}

.app-content {
  padding: 40px 32px;
  max-width: 960px;
  margin: 0 auto;
  width: 100%;
}

/* ── Card ──────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  box-shadow: var(--shadow-sm);
}

.card-sm {
  padding: 24px 28px;
}

.card + .card {
  margin-top: 20px;
}

/* ── Login / Signup panel ──────────────────────────────────── */
#loginDiv,
#registerDiv,
.auth-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 44px 48px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 0;

  /* entrance animation */
  animation: fadeUp 0.4s cubic-bezier(.22,1,.36,1) both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

#inner-title,
.auth-panel__title {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 28px;
}

/* Headline inside the auth card */
.auth-panel h2 {
  font-size: 1.6rem;
  margin-bottom: 6px;
}

.auth-panel p.subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

/* ── Form elements ─────────────────────────────────────────── */
label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.01em;
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="search"],
textarea,
select {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-primary);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  margin-bottom: 16px;
  appearance: none;
}

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

input:focus,
textarea:focus,
select:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(58,55,51,.08);
}

/* Inline input + button row (search bar) */
.input-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 20px;
}

.input-row input {
  flex: 1;
  margin-bottom: 0;
}

/* ── Buttons ───────────────────────────────────────────────── */
.buttons,
button.buttons,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 10px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), box-shadow var(--transition),
              transform var(--transition);
  white-space: nowrap;
  letter-spacing: 0.01em;
  text-decoration: none;
}

/* Primary (default for .buttons) */
.buttons,
button.buttons {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.buttons:hover,
button.buttons:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.buttons:active,
button.buttons:active {
  transform: translateY(0);
  box-shadow: none;
}

/* Ghost / secondary */
.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border);
}

.btn-ghost:hover {
  background: var(--accent-subtle);
  border-color: var(--border-focus);
}

/* Danger */
.btn-danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}

.btn-danger:hover {
  background: #a93226;
  border-color: #a93226;
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

/* Full-width */
.btn-full {
  width: 100%;
  padding: 12px 20px;
  font-size: 0.9rem;
}

/* ── Logged-in user bar ─────────────────────────────────────── */
#loggedInDiv {
  display: flex;
  align-items: center;
  gap: 12px;
}

#userName {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

#userName::before {
  content: '@ ';
  color: var(--text-muted);
  font-size: 0.75rem;
}

/* ── Access / main UI div ──────────────────────────────────── */
#accessUIDiv {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  max-width: 720px;
  margin: 32px auto;
  box-shadow: var(--shadow-sm);
  animation: fadeUp 0.35s cubic-bezier(.22,1,.36,1) both;
}

/* ── Contacts list ─────────────────────────────────────────── */
#contactList,
#colorList,
.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 8px;
}

/* Individual contact card */
.contact-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), box-shadow var(--transition),
              transform var(--transition);
}

.contact-item:hover {
  border-color: var(--border-focus);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.contact-item__name {
  font-weight: 500;
  font-size: 0.95rem;
}

.contact-item__detail {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.contact-item__actions {
  display: flex;
  gap: 8px;
}

/* ── Result / status spans ─────────────────────────────────── */
#loginResult,
#registerResult,
#colorSearchResult,
#colorAddResult,
#contactResult,
.result-msg {
  display: inline-block;
  font-size: 0.82rem;
  font-family: var(--font-mono);
  font-weight: 400;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  margin-top: 6px;
  min-height: 28px;
}

.result-msg--error,
.error-text {
  color: var(--danger);
  background: var(--danger-subtle);
}

.result-msg--success,
.success-text {
  color: var(--success);
  background: var(--success-subtle);
}

/* ── Section headings ──────────────────────────────────────── */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: block;
}

/* ── Modal overlay (for edit contact) ─────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26,25,23,.35);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 24px;
  animation: fadeIn 0.2s ease both;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 44px;
  width: 100%;
  max-width: 460px;
  box-shadow: var(--shadow-lg);
  animation: fadeUp 0.3s cubic-bezier(.22,1,.36,1) both;
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.modal__title {
  font-size: 1.15rem;
  font-weight: 600;
}

.modal__close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1rem;
  color: var(--text-secondary);
  transition: background var(--transition);
}

.modal__close:hover { background: var(--accent-subtle); }

.modal__footer {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 28px;
}

/* ── Auth toggle link (Login ↔ Sign Up) ────────────────────── */
.auth-toggle {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 20px;
}

.auth-toggle a {
  color: var(--text-primary);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: border-color var(--transition);
}

.auth-toggle a:hover {
  border-color: var(--text-primary);
}

/* ── Empty state ───────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state__icon {
  font-size: 2rem;
  margin-bottom: 12px;
  opacity: 0.5;
}

.empty-state__text {
  font-size: 0.9rem;
  font-family: var(--font-mono);
}

/* ── Skeleton loader ───────────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--surface-2) 25%, var(--border) 50%, var(--surface-2) 75%);
  background-size: 200% 100%;
  border-radius: var(--radius-sm);
  animation: shimmer 1.4s infinite;
}

@keyframes shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 600px) {
  #loginDiv,
  #registerDiv,
  .auth-panel {
    padding: 32px 24px;
  }

  #accessUIDiv {
    padding: 24px 20px;
    margin: 16px auto;
  }

  .app-header,
  .app-content {
    padding-left: 20px;
    padding-right: 20px;
  }

  .modal {
    padding: 28px 24px;
  }

  .card {
    padding: 24px 20px;
  }

  .input-row {
    flex-direction: column;
    align-items: stretch;
  }

  .contact-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

body {
  background: #f3f4f6;
}

main, .app, .app-shell, .landing-wrap {
  background: #f3f4f6;
}

.card, .auth-panel, .contact-item, .app-header, .app-content {
  background: #ffffff;
}


body {
  background: #f3f4f6;
}

main,
.app,
.app-shell,
.landing-wrap,
.auth-wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 32px 24px;
}

input,
textarea,
select {
  max-width: 600px;
}

.auth-panel,
.card,
.app-header,
.app-content,
.contact-item {
  margin-left: auto;
  margin-right: auto;
}
.hidden {
  display: none !important;
}
.success-text {
  color: var(--success);
  background: var(--success-subtle);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
}

.error-text {
  color: var(--danger);
  background: var(--danger-subtle);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
}