/* ==========================================================================
   Dayfile Design System
   Color palette, typography, and component styles
   ========================================================================== */

/* --- Google Fonts: Inter --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Base palette */
  --df-bg:        #FFFFFF;
  --df-bg-alt:    #F9FAFB;
  --df-surface:   #FFFFFF;
  --df-surface-2: #F3F4F6;
  --df-border:    #E5E7EB;
  --df-border-2:  #D1D5DB;

  /* Text */
  --df-text:      #111827;
  --df-text-2:    #4B5563;
  --df-text-3:    #6B7280;
  --df-text-muted:#9CA3AF;

  /* Accent */
  --df-accent:    #6366F1;
  --df-accent-hover: #4F46E5;
  --df-accent-soft: #EEF2FF;
  --df-accent-text: #4338CA;

  /* Semantic */
  --df-green:     #10B981;
  --df-green-soft:#ECFDF5;
  --df-green-text:#065F46;
  --df-red:       #EF4444;
  --df-red-soft:  #FEF2F2;
  --df-red-text:  #991B1B;
  --df-yellow:    #F59E0B;
  --df-yellow-soft:#FFFBEB;
  --df-gray:      #6B7280;
  --df-gray-soft: #F3F4F6;

  /* Typography */
  --df-font:      'Inter', system-ui, -apple-system, sans-serif;
  --df-mono:      'SF Mono', 'Fira Code', 'Fira Mono', monospace;

  /* Sizing */
  --df-h1:        1.75rem;
  --df-h2:        1.25rem;
  --df-h3:        1.125rem;
  --df-body:      0.9375rem;
  --df-caption:   0.8125rem;
  --df-small:     0.75rem;

  /* Spacing */
  --df-space-xs:  0.25rem;
  --df-space-sm:  0.5rem;
  --df-space-md:  1rem;
  --df-space-lg:  1.5rem;
  --df-space-xl:  2rem;
  --df-space-2xl: 3rem;

  /* Radius */
  --df-radius-sm: 6px;
  --df-radius:    8px;
  --df-radius-lg: 12px;
  --df-radius-xl: 16px;

  /* Shadows */
  --df-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --df-shadow:    0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --df-shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -2px rgba(0,0,0,0.04);
  --df-shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);

  /* Transitions */
  --df-transition: 150ms ease;
}

/* --- Dark Theme --- */
[data-theme="dark"] {
  --df-bg:        #0B0F14;
  --df-bg-alt:    #0F1318;
  --df-surface:   #111827;
  --df-surface-2: #1F2937;
  --df-border:    #1F2937;
  --df-border-2:  #374151;

  --df-text:      #E5E7EB;
  --df-text-2:    #D1D5DB;
  --df-text-3:    #9CA3AF;
  --df-text-muted:#6B7280;

  --df-accent-soft: rgba(99,102,241,0.12);
  --df-accent-text: #A5B4FC;

  --df-green-soft: rgba(16,185,129,0.12);
  --df-green-text: #6EE7B7;
  --df-red-soft:   rgba(239,68,68,0.12);
  --df-red-text:   #FCA5A5;
  --df-yellow-soft: rgba(245,158,11,0.12);
  --df-gray-soft:  #1F2937;
}

/* ==========================================================================
   Base reset & typography
   ========================================================================== */

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

html {
  font-family: var(--df-font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: var(--df-bg);
  color: var(--df-text);
}

body {
  margin: 0;
  padding: 0;
  background: var(--df-bg);
  color: var(--df-text);
}

h1, h2, h3, h4 {
  font-family: var(--df-font);
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 var(--df-space-sm);
  color: var(--df-text);
}

h1 { font-size: var(--df-h1); }
h2 { font-size: var(--df-h2); }
h3 { font-size: var(--df-h3); }

p {
  margin: 0 0 var(--df-space-md);
  font-size: var(--df-body);
  color: var(--df-text-2);
  line-height: 1.65;
}

a {
  color: var(--df-accent);
  text-decoration: none;
  transition: color var(--df-transition);
}
a:hover { color: var(--df-accent-hover); }

small { font-size: var(--df-small); color: var(--df-text-muted); }

code {
  font-family: var(--df-mono);
  font-size: 0.85em;
  background: var(--df-surface-2);
  padding: 0.15em 0.4em;
  border-radius: var(--df-radius-sm);
  color: var(--df-accent-text);
}

pre {
  background: var(--df-surface-2);
  border: 1px solid var(--df-border);
  border-radius: var(--df-radius);
  padding: var(--df-space-md);
  overflow-x: auto;
  font-size: var(--df-caption);
  line-height: 1.6;
}
pre code {
  background: none;
  padding: 0;
  color: var(--df-text);
}

/* ==========================================================================
   Layout
   ========================================================================== */

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--df-space-lg);
}

.container-sm {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 var(--df-space-lg);
}

.container-lg {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--df-space-lg);
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--df-space-md) 0;
  border-bottom: 1px solid var(--df-border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--df-space-sm);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--df-text);
  text-decoration: none;
}

.nav-brand svg {
  width: 28px;
  height: 28px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--df-space-xs);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: var(--df-space-xs);
  padding: 0.4rem 0.75rem;
  border-radius: var(--df-radius-sm);
  font-size: var(--df-body);
  font-weight: 500;
  color: var(--df-text-3);
  transition: all var(--df-transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--df-text);
  background: var(--df-surface-2);
}

.nav-links a.btn {
  color: inherit;
}

.nav-links a.btn-primary {
  color: #FFFFFF;
}

.nav-links a.btn-primary:hover {
  color: #FFFFFF;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--df-space-sm);
  padding: 0.55rem 1.1rem;
  border: 1px solid transparent;
  border-radius: var(--df-radius);
  font-family: var(--df-font);
  font-size: var(--df-body);
  font-weight: 500;
  line-height: 1.4;
  cursor: pointer;
  transition: all var(--df-transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--df-accent);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--df-accent);
  color: #FFFFFF;
  border-color: var(--df-accent);
}
.btn-primary:hover {
  background: var(--df-accent-hover);
  border-color: var(--df-accent-hover);
  color: #FFFFFF;
}

.btn-secondary {
  background: var(--df-surface);
  color: var(--df-text);
  border-color: var(--df-border-2);
}
.btn-secondary:hover {
  background: var(--df-surface-2);
  border-color: var(--df-border-2);
  color: var(--df-text);
}

.btn-ghost {
  background: transparent;
  color: var(--df-text-3);
  border-color: transparent;
}
.btn-ghost:hover {
  background: var(--df-surface-2);
  color: var(--df-text);
}

.btn-danger {
  background: transparent;
  color: var(--df-red);
  border-color: var(--df-border);
}
.btn-danger:hover {
  background: var(--df-red-soft);
  border-color: var(--df-red);
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: var(--df-caption);
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
  background: var(--df-surface);
  border: 1px solid var(--df-border);
  border-radius: var(--df-radius-lg);
  padding: var(--df-space-lg);
  box-shadow: var(--df-shadow-sm);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--df-space-md);
}

.card-header h2,
.card-header h3 {
  margin: 0;
}

/* ==========================================================================
   Visibility Badge (spec component)
   ========================================================================== */

.visibility-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--df-space-sm);
  padding: 0.45rem 0.9rem;
  border-radius: 100px;
  font-size: var(--df-caption);
  font-weight: 500;
}

.visibility-badge--active {
  background: var(--df-green-soft);
  color: var(--df-green-text);
}

.visibility-badge--inactive {
  background: var(--df-gray-soft);
  color: var(--df-gray);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.badge-dot--green { background: var(--df-green); }
.badge-dot--gray  { background: var(--df-gray); }

/* ==========================================================================
   Access Scope Card (spec component)
   ========================================================================== */

.scope-card {
  background: var(--df-bg-alt);
  border: 1px solid var(--df-border);
  border-radius: var(--df-radius-lg);
  padding: var(--df-space-lg);
}

.scope-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--df-space-md);
}

.scope-stat {
  text-align: center;
}

.scope-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--df-text);
  line-height: 1;
}

.scope-stat-label {
  font-size: var(--df-small);
  color: var(--df-text-muted);
  margin-top: var(--df-space-xs);
}

/* ==========================================================================
   Calendar Toggle List (spec component)
   ========================================================================== */

.calendar-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--df-border);
  border-radius: var(--df-radius-lg);
  overflow: hidden;
  border: 1px solid var(--df-border);
}

.calendar-row {
  display: flex;
  align-items: center;
  gap: var(--df-space-md);
  padding: var(--df-space-md) var(--df-space-lg);
  background: var(--df-surface);
  transition: background var(--df-transition);
}

.calendar-row:hover {
  background: var(--df-bg-alt);
}

.calendar-color {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  flex-shrink: 0;
}

.calendar-info {
  flex: 1;
  min-width: 0;
}

.calendar-name {
  font-size: var(--df-body);
  font-weight: 500;
  color: var(--df-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.calendar-account {
  font-size: var(--df-small);
  color: var(--df-text-muted);
}

/* Toggle Switch */
.toggle {
  position: relative;
  width: 40px;
  height: 22px;
  flex-shrink: 0;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.toggle-track {
  position: absolute;
  inset: 0;
  background: var(--df-border-2);
  border-radius: 11px;
  cursor: pointer;
  transition: background var(--df-transition);
}

.toggle-track::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  background: #FFFFFF;
  border-radius: 50%;
  transition: transform var(--df-transition);
  box-shadow: var(--df-shadow-sm);
}

.toggle input:checked + .toggle-track {
  background: var(--df-green);
}

.toggle input:checked + .toggle-track::after {
  transform: translateX(18px);
}

.toggle input:focus-visible + .toggle-track {
  outline: 2px solid var(--df-accent);
  outline-offset: 2px;
}

/* ==========================================================================
   Account Card
   ========================================================================== */

.account-card {
  background: var(--df-surface);
  border: 1px solid var(--df-border);
  border-radius: var(--df-radius-lg);
  overflow: hidden;
  margin-bottom: var(--df-space-lg);
}

.account-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--df-space-md) var(--df-space-lg);
  border-bottom: 1px solid var(--df-border);
  background: var(--df-bg-alt);
}

.account-info {
  display: flex;
  align-items: center;
  gap: var(--df-space-md);
}

.account-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--df-accent-soft);
  color: var(--df-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--df-body);
  flex-shrink: 0;
}

.account-name {
  font-weight: 600;
  font-size: var(--df-body);
  color: var(--df-text);
}

.account-email {
  font-size: var(--df-small);
  color: var(--df-text-muted);
}

.account-actions {
  display: flex;
  gap: var(--df-space-sm);
}

/* ==========================================================================
   Event Cards
   ========================================================================== */

.event-group {
  margin-bottom: var(--df-space-xl);
}

.event-date {
  font-size: var(--df-caption);
  font-weight: 600;
  color: var(--df-text-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding-bottom: var(--df-space-sm);
  border-bottom: 1px solid var(--df-border);
  margin-bottom: var(--df-space-md);
}

.event-card {
  display: flex;
  align-items: flex-start;
  gap: var(--df-space-md);
  padding: var(--df-space-md);
  border-radius: var(--df-radius);
  border-left: 3px solid var(--event-color, var(--df-accent));
  background: var(--df-surface);
  margin-bottom: var(--df-space-sm);
  transition: background var(--df-transition);
}

.event-card:hover {
  background: var(--df-bg-alt);
}

.event-time-col {
  flex-shrink: 0;
  min-width: 52px;
  font-size: var(--df-caption);
  font-weight: 500;
  color: var(--df-text-3);
  padding-top: 1px;
}

.event-details {
  flex: 1;
  min-width: 0;
}

.event-title {
  font-weight: 500;
  font-size: var(--df-body);
  color: var(--df-text);
  margin-bottom: 2px;
}

.event-meta {
  font-size: var(--df-small);
  color: var(--df-text-muted);
}

/* ==========================================================================
   Config Block (MCP configuration)
   ========================================================================== */

.config-block {
  position: relative;
  background: var(--df-surface-2);
  border: 1px solid var(--df-border);
  border-radius: var(--df-radius-lg);
  overflow: hidden;
}

.config-block pre {
  margin: 0;
  border: 0;
  border-radius: 0;
  background: none;
  padding: var(--df-space-lg);
  font-size: var(--df-caption);
}

.config-block-footer {
  padding: var(--df-space-sm) var(--df-space-lg);
  border-top: 1px solid var(--df-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--df-bg-alt);
}

.api-key-display {
  font-family: var(--df-mono);
  font-size: var(--df-small);
  color: var(--df-text-muted);
  display: flex;
  align-items: center;
  gap: var(--df-space-sm);
}

.api-key-display svg {
  width: 14px;
  height: 14px;
  color: var(--df-yellow);
}

/* ==========================================================================
   Empty State (spec component)
   ========================================================================== */

.empty-state {
  text-align: center;
  padding: var(--df-space-2xl) var(--df-space-lg);
  color: var(--df-text-3);
}

.empty-state-icon {
  font-size: 2.5rem;
  margin-bottom: var(--df-space-md);
  opacity: 0.5;
}

.empty-state h3 {
  color: var(--df-text-2);
  margin-bottom: var(--df-space-xs);
}

.empty-state p {
  color: var(--df-text-muted);
  font-size: var(--df-body);
  max-width: 320px;
  margin: 0 auto var(--df-space-lg);
}

/* ==========================================================================
   Toast Notification (spec component)
   ========================================================================== */

.toast-container {
  position: fixed;
  bottom: var(--df-space-lg);
  right: var(--df-space-lg);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--df-space-sm);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--df-space-sm);
  padding: 0.65rem 1rem;
  border-radius: var(--df-radius);
  font-size: var(--df-caption);
  font-weight: 500;
  box-shadow: var(--df-shadow-lg);
  pointer-events: auto;
  animation: toast-in 200ms ease;
  background: var(--df-surface);
  border: 1px solid var(--df-border);
  color: var(--df-text);
}

.toast--success {
  border-left: 3px solid var(--df-green);
}

.toast--error {
  border-left: 3px solid var(--df-red);
}

.toast--fade-out {
  animation: toast-out 200ms ease forwards;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes toast-out {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(8px); }
}

/* ==========================================================================
   Section Headings
   ========================================================================== */

.section-title {
  font-size: var(--df-h2);
  font-weight: 600;
  color: var(--df-text);
  margin-bottom: var(--df-space-xs);
}

.section-subtitle {
  font-size: var(--df-body);
  color: var(--df-text-muted);
  margin-bottom: var(--df-space-lg);
}

/* ==========================================================================
   Page Header
   ========================================================================== */

.page-header {
  padding: var(--df-space-xl) 0 var(--df-space-lg);
}

.page-header h1 {
  margin-bottom: var(--df-space-xs);
}

.page-header p {
  color: var(--df-text-muted);
  margin: 0;
}

/* ==========================================================================
   Select / Form Controls
   ========================================================================== */

.select-control {
  appearance: none;
  -webkit-appearance: none;
  background: var(--df-surface);
  border: 1px solid var(--df-border-2);
  border-radius: var(--df-radius);
  padding: 0.45rem 2rem 0.45rem 0.75rem;
  font-family: var(--df-font);
  font-size: var(--df-caption);
  font-weight: 500;
  color: var(--df-text);
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%236B7280' viewBox='0 0 16 16'%3E%3Cpath d='M4.646 6.646a.5.5 0 01.708 0L8 9.293l2.646-2.647a.5.5 0 01.708.708l-3 3a.5.5 0 01-.708 0l-3-3a.5.5 0 010-.708z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.5rem center;
  transition: border-color var(--df-transition);
}

.select-control:hover { border-color: var(--df-accent); }
.select-control:focus { outline: 2px solid var(--df-accent); outline-offset: -1px; border-color: var(--df-accent); }

/* ==========================================================================
   Modal
   ========================================================================== */

.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  padding: var(--df-space-lg);
}

.modal-backdrop.modal-open {
  display: flex;
}

.modal-card {
  background: var(--df-surface);
  border-radius: var(--df-radius-lg);
  width: 100%;
  max-width: 520px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  animation: modal-in 200ms ease;
}

@keyframes modal-in {
  from { opacity: 0; transform: translateY(12px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--df-space-lg) var(--df-space-lg) 0;
}

.modal-body {
  padding: var(--df-space-lg);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--df-space-sm);
  padding: 0 var(--df-space-lg) var(--df-space-lg);
}

/* ==========================================================================
   Form Elements
   ========================================================================== */

.form-group {
  margin-bottom: var(--df-space-md);
}

.form-label {
  display: block;
  font-size: var(--df-caption);
  font-weight: 500;
  color: var(--df-text-2);
  margin-bottom: var(--df-space-xs);
}

.form-input {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-family: var(--df-font);
  font-size: var(--df-body);
  color: var(--df-text);
  background: var(--df-surface);
  border: 1px solid var(--df-border-2);
  border-radius: var(--df-radius);
  transition: border-color var(--df-transition);
  box-sizing: border-box;
}

.form-input:focus {
  outline: 2px solid var(--df-accent);
  outline-offset: -1px;
  border-color: var(--df-accent);
}

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

textarea.form-input {
  resize: vertical;
  min-height: 70px;
}

select.form-input {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%236B7280' viewBox='0 0 16 16'%3E%3Cpath d='M4.646 6.646a.5.5 0 01.708 0L8 9.293l2.646-2.647a.5.5 0 01.708.708l-3 3a.5.5 0 01-.708 0l-3-3a.5.5 0 010-.708z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.5rem center;
  cursor: pointer;
}

.form-row {
  display: flex;
  gap: var(--df-space-md);
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

.flex          { display: flex; }
.flex-col      { flex-direction: column; }
.items-center  { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-xs        { gap: var(--df-space-xs); }
.gap-sm        { gap: var(--df-space-sm); }
.gap-md        { gap: var(--df-space-md); }
.gap-lg        { gap: var(--df-space-lg); }
.mt-sm         { margin-top: var(--df-space-sm); }
.mt-md         { margin-top: var(--df-space-md); }
.mt-lg         { margin-top: var(--df-space-lg); }
.mt-xl         { margin-top: var(--df-space-xl); }
.mb-sm         { margin-bottom: var(--df-space-sm); }
.mb-md         { margin-bottom: var(--df-space-md); }
.mb-lg         { margin-bottom: var(--df-space-lg); }
.text-center   { text-align: center; }
.text-muted    { color: var(--df-text-muted); }
.w-full        { width: 100%; }

/* ==========================================================================
   Landing Page Specific
   ========================================================================== */

.hero {
  text-align: center;
  padding: var(--df-space-2xl) 0;
}

.hero h1 {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--df-space-md);
  color: var(--df-text);
  letter-spacing: -0.02em;
}

.hero-tagline {
  font-size: 1.125rem;
  color: var(--df-text-3);
  max-width: 540px;
  margin: 0 auto var(--df-space-xl);
  line-height: 1.6;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--df-space-sm);
  margin-top: var(--df-space-lg);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--df-surface-2);
  border: 1px solid var(--df-border);
  border-radius: 100px;
  padding: 0.3rem 0.85rem;
  font-size: var(--df-small);
  font-weight: 500;
  color: var(--df-text-3);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--df-space-lg);
  padding: var(--df-space-2xl) 0;
}

@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 1.75rem;
  }
}

.feature-card {
  padding: var(--df-space-lg);
  border-radius: var(--df-radius-lg);
  border: 1px solid var(--df-border);
  background: var(--df-surface);
  transition: box-shadow var(--df-transition), border-color var(--df-transition);
}

.feature-card:hover {
  box-shadow: var(--df-shadow-md);
  border-color: var(--df-border-2);
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--df-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--df-space-md);
  font-size: 1.25rem;
}

.feature-icon--calendar  { background: var(--df-accent-soft); }
.feature-icon--mcp       { background: var(--df-green-soft); }
.feature-icon--search    { background: var(--df-yellow-soft); }
.feature-icon--lock      { background: var(--df-red-soft); }
.feature-icon--ui        { background: var(--df-accent-soft); }
.feature-icon--host      { background: var(--df-gray-soft); }

.feature-card h3 {
  font-size: var(--df-body);
  font-weight: 600;
  margin-bottom: var(--df-space-xs);
}

.feature-card p {
  font-size: var(--df-caption);
  color: var(--df-text-3);
  margin: 0;
  line-height: 1.55;
}

/* How It Works */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--df-space-xl);
  padding: var(--df-space-xl) 0;
}

@media (max-width: 768px) {
  .steps { grid-template-columns: 1fr; }
}

.step {
  text-align: center;
}

.step-number {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--df-accent-soft);
  color: var(--df-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--df-body);
  margin-bottom: var(--df-space-md);
}

.step h3 {
  font-size: var(--df-body);
  margin-bottom: var(--df-space-xs);
}

.step p {
  font-size: var(--df-caption);
  color: var(--df-text-3);
  margin: 0;
}

/* CTA Section */
.cta-section {
  text-align: center;
  padding: var(--df-space-2xl) 0;
  border-top: 1px solid var(--df-border);
  margin-top: var(--df-space-xl);
}

.cta-section h2 {
  font-size: var(--df-h1);
  margin-bottom: var(--df-space-sm);
}

.cta-section p {
  color: var(--df-text-muted);
  margin-bottom: var(--df-space-lg);
}

/* Footer */
.footer {
  text-align: center;
  padding: var(--df-space-xl) 0;
  border-top: 1px solid var(--df-border);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--df-space-lg);
  margin-bottom: var(--df-space-md);
}

.footer-links a {
  font-size: var(--df-caption);
  color: var(--df-text-muted);
}
.footer-links a:hover { color: var(--df-text); }

.footer small {
  display: block;
  color: var(--df-text-muted);
}

/* ==========================================================================
   Login Page
   ========================================================================== */

.login-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--df-space-xl);
}

.login-card {
  text-align: center;
  max-width: 380px;
  width: 100%;
}

.login-card h1 {
  font-size: var(--df-h1);
  margin-bottom: var(--df-space-xs);
}

.login-card p {
  color: var(--df-text-muted);
  margin-bottom: var(--df-space-xl);
}

.google-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--df-space-sm);
  width: 100%;
  padding: 0.7rem var(--df-space-lg);
  background: var(--df-surface);
  border: 1px solid var(--df-border-2);
  border-radius: var(--df-radius);
  font-family: var(--df-font);
  font-size: var(--df-body);
  font-weight: 500;
  color: var(--df-text);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--df-transition);
}

.google-btn:hover {
  border-color: var(--df-text-muted);
  background: var(--df-bg-alt);
  box-shadow: var(--df-shadow);
  color: var(--df-text);
}

.google-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.login-form {
  text-align: left;
  margin-bottom: var(--df-space-md);
}

.login-form .form-group:last-of-type {
  margin-bottom: var(--df-space-md);
}

.login-divider {
  display: flex;
  align-items: center;
  gap: var(--df-space-md);
  margin: var(--df-space-lg) 0;
  color: var(--df-text-muted);
  font-size: var(--df-small);
}

.login-divider::before,
.login-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--df-border);
}

.login-alert {
  text-align: left;
  font-size: var(--df-small);
  padding: var(--df-space-sm) var(--df-space-md);
  border-radius: var(--df-radius);
  margin-bottom: var(--df-space-lg);
}

.login-alert--error {
  background: color-mix(in srgb, var(--df-danger, #dc2626) 12%, transparent);
  color: var(--df-danger, #b91c1c);
  border: 1px solid color-mix(in srgb, var(--df-danger, #dc2626) 35%, transparent);
}

.login-alert--warn {
  background: color-mix(in srgb, var(--df-amber, #d97706) 12%, transparent);
  color: var(--df-text-2);
  border: 1px solid color-mix(in srgb, var(--df-amber, #d97706) 30%, transparent);
}

.settings-password-card {
  text-align: left;
}

/* ==========================================================================
   Legal Pages (Privacy & Terms)
   ========================================================================== */

.legal-page {
  padding: var(--df-space-2xl) 0;
}

.legal-page h1 {
  font-size: var(--df-h1);
  margin-bottom: var(--df-space-xs);
}

.legal-page .last-updated {
  font-size: var(--df-caption);
  color: var(--df-text-muted);
  margin-bottom: var(--df-space-2xl);
}

.legal-page h2 {
  font-size: var(--df-h2);
  margin-top: var(--df-space-xl);
  margin-bottom: var(--df-space-sm);
  padding-bottom: var(--df-space-sm);
  border-bottom: 1px solid var(--df-border);
}

.legal-page ul {
  padding-left: var(--df-space-lg);
  margin-bottom: var(--df-space-md);
}

.legal-page li {
  font-size: var(--df-body);
  color: var(--df-text-2);
  margin-bottom: var(--df-space-sm);
  line-height: 1.65;
}

/* ==========================================================================
   User Info
   ========================================================================== */

.user-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--df-space-md) var(--df-space-lg);
  background: var(--df-bg-alt);
  border: 1px solid var(--df-border);
  border-radius: var(--df-radius-lg);
  margin-bottom: var(--df-space-lg);
}

.user-info {
  display: flex;
  align-items: center;
  gap: var(--df-space-md);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--df-accent-soft);
  color: var(--df-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--df-caption);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 640px) {
  .account-header {
    flex-direction: column;
    gap: var(--df-space-md);
    align-items: flex-start;
  }

  .account-actions {
    width: 100%;
  }

  .account-actions .btn {
    flex: 1;
  }

  .scope-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .user-bar {
    flex-direction: column;
    gap: var(--df-space-sm);
    text-align: center;
  }

  .nav {
    flex-wrap: wrap;
    gap: var(--df-space-sm);
  }

  .nav-links {
    flex-wrap: wrap;
  }
}