/* ---
  Dhas Dental Clinic CRM - Fluent UI 2 Style (Final, Corrected Version)
  Author: AI Assistant for Digiterasolutions
--- */

/* 1. ROOT VARIABLES & THEME SETUP
-------------------------------------------------- */
:root {
  --font-family-sans: 'Outfit', 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', sans-serif;
  --radius-sm: 3px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-full: 9999px;
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* Light Theme */
  --c-bg-light: #f8f9fa;
  --c-surface-light: #ffffff;
  --c-surface-secondary-light: #f1f3f5;
  --c-border-light: #dee2e6;
  --c-text-primary-light: #212529;
  --c-text-secondary-light: #6c757d;
  --c-accent-light: #0078d4;
  --c-accent-hover-light: #005a9e;
  --c-shadow-light: rgba(0, 0, 0, 0.08);
  --c-overlay-light: rgba(0, 0, 0, 0.4);
}

body.dark-mode {
  /* Dark Theme */
  --c-bg-dark: #121212;
  --c-surface-dark: #1e1e1e;
  --c-surface-secondary-dark: #2a2a2a;
  --c-border-dark: #444;
  --c-text-primary-dark: #e9ecef;
  --c-text-secondary-dark: #adb5bd;
  --c-accent-dark: #4dabf7;
  --c-accent-hover-dark: #74c0fc;
  --c-shadow-dark: rgba(0, 0, 0, 0.3);
  --c-overlay-dark: rgba(0, 0, 0, 0.6);
}

:root {
  --c-bg: var(--c-bg-light);
  --c-surface: var(--c-surface-light);
  --c-surface-secondary: var(--c-surface-secondary-light);
  --c-border: var(--c-border-light);
  --c-text-primary: var(--c-text-primary-light);
  --c-text-secondary: var(--c-text-secondary-light);
  --c-accent: var(--c-accent-light);
  --c-accent-hover: var(--c-accent-hover-light);
  --c-shadow: var(--c-shadow-light);
  --c-overlay: var(--c-overlay-light);
  --c-danger: #d94848;
  --c-success: #28a745;
  --c-warning: #ffc107;
}

body.dark-mode {
  --c-bg: var(--c-bg-dark);
  --c-surface: var(--c-surface-dark);
  --c-surface-secondary: var(--c-surface-secondary-dark);
  --c-border: var(--c-border-dark);
  --c-text-primary: var(--c-text-primary-dark);
  --c-text-secondary: var(--c-text-secondary-dark);
  --c-accent: var(--c-accent-dark);
  --c-accent-hover: var(--c-accent-hover-dark);
  --c-shadow: var(--c-shadow-dark);
  --c-overlay: var(--c-overlay-dark);
}


/* 2. GENERAL STYLES & RESETS
-------------------------------------------------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { color-scheme: light; }
html.dark-mode { color-scheme: dark; }

body {
  font-family: var(--font-family-sans);
  background-color: var(--c-bg);
  color: var(--c-text-primary);
  line-height: 1.6;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--transition-slow), color var(--transition-slow);
}

i.ri-\[*\], i\[class\^="ri-"\] {
  font-size: 1.25em;
  vertical-align: middle;
}


/* 3. LAYOUT STRUCTURE
-------------------------------------------------- */
.dashboard { display: flex; min-height: 100vh; position: relative; overflow-x: hidden; }

.sidebar {
  position: fixed; top: 0; left: 0; height: 100%; width: 240px;
  background-color: var(--c-surface);
  border-right: 1px solid var(--c-border);
  padding: 1.25rem 0;
  display: flex; flex-direction: column; z-index: 1000;
  transform: translateX(-100%); transition: var(--transition-slow);
}
.sidebar.open { transform: translateX(0); box-shadow: 0 0 40px var(--c-shadow); }
.sidebar-overlay {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background-color: var(--c-overlay); z-index: 999;
  opacity: 0; visibility: hidden; transition: var(--transition-fast);
}
.sidebar-overlay.visible { opacity: 1; visibility: visible; }

.main-content { flex-grow: 1; display: flex; flex-direction: column; transition: margin-left var(--transition-slow); }

.header {
  background-color: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  padding: 0.75rem 1rem; display: flex;
  justify-content: space-between; align-items: center; gap: 1rem;
  position: sticky; top: 0; z-index: 100;
}

.content-area { padding: 1rem; flex-grow: 1; overflow-y: auto; }
.content { display: none; }
.content.active-page { display: block; animation: fadeIn 0.5s ease-in-out; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* 4. COMPONENT STYLES
-------------------------------------------------- */
/* --- Sidebar --- */
.logo { padding: 0 1.25rem 1.25rem; margin-bottom: 1rem; }
.logo h1 { font-size: 1.25rem; font-weight: 600; color: var(--c-text-primary); }
.logo p { font-size: 0.75rem; color: var(--c-text-secondary); }

.sidebar-nav { flex-grow: 1; }
.nav-item {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.75rem 1.25rem; margin: 0.25rem 0.5rem;
  cursor: pointer; color: var(--c-text-primary);
  text-decoration: none; font-weight: 500;
  border-radius: var(--radius-md); transition: var(--transition-fast);
}
.nav-item:hover { background-color: var(--c-surface-secondary); }
.nav-item.active { background-color: var(--c-accent); color: white; font-weight: 600; }
.nav-item.active i { color: white; }

.sidebar-footer { margin-top: auto; padding: 0.5rem 1.25rem; }
.sidebar-footer p { font-size: 0.75rem; text-align: center; color: var(--c-text-secondary); margin-top: 1rem; }
.sidebar-footer a { color: var(--c-accent); text-decoration: none; }
.sidebar-footer a:hover { text-decoration: underline; }

/* --- Header & Search --- */
.header-left, .header-right { display: flex; align-items: center; gap: 0.75rem; }
.header-left { flex-grow: 1; }
.search-container { position: relative; flex-grow: 1; max-width: 400px; }
.search-container > i { position: absolute; left: 0.75rem; top: 50%; transform: translateY(-50%); color: var(--c-text-secondary); pointer-events: none; }
#searchInput { width: 100%; padding: 0.5rem 0.75rem 0.5rem 2.25rem; }
.suggestions {
    position: absolute; top: 100%; left: 0; right: 0; background: var(--c-surface);
    border: 1px solid var(--c-border); border-top: none; border-radius: 0 0 var(--radius-md) var(--radius-md);
    max-height: 300px; overflow-y: auto; z-index: 101; box-shadow: 0 4px 12px var(--c-shadow); display: none;
}
.suggestion-item { padding: 0.75rem; cursor: pointer; border-bottom: 1px solid var(--c-border); }
.suggestion-item:last-child { border-bottom: none; }
.suggestion-item:hover { background-color: var(--c-surface-secondary); }
.suggestion-title { font-weight: 600; }
.suggestion-subtitle { font-size: 0.8rem; color: var(--c-text-secondary); }

/* User Profile */
.user-profile { display: flex; align-items: center; gap: 0.75rem; cursor: pointer; position: relative; }
.user-avatar {
  width: 36px; height: 36px; border-radius: 50%; background: var(--c-accent); color: white;
  font-weight: 600; display: flex; align-items: center; justify-content: center;
}
.user-info { text-align: right; }
.user-name { font-size: 0.875rem; font-weight: 600; }
.user-email { font-size: 0.75rem; color: var(--c-text-secondary); }

.profile-dropdown {
  position: absolute; top: calc(100% + 8px); right: 0; background: var(--c-surface);
  border: 1px solid var(--c-border); border-radius: var(--radius-md); box-shadow: 0 4px 12px var(--c-shadow);
  padding: 0.5rem; min-width: 180px; z-index: 1001; display: none;
}
.profile-dropdown.show { display: block; }
.dropdown-item {
  display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem; cursor: pointer;
  font-size: 0.875rem; border-radius: var(--radius-sm); transition: var(--transition-fast);
}
.dropdown-item:hover { background-color: var(--c-surface-secondary); }


/* --- Buttons & Forms --- */
.btn, .icon-btn, .btn-text {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-family: var(--font-family-sans); font-weight: 600; font-size: 0.875rem;
  border: 1px solid transparent; border-radius: var(--radius-md); cursor: pointer;
  transition: var(--transition-fast); text-decoration: none; user-select: none;
}
.btn { padding: 0.5rem 1rem; }
.icon-btn { padding: 0.5rem; background: transparent; }
.icon-btn:hover { background-color: var(--c-surface-secondary); }
.btn-text { background: none; border: none; padding: 0.25rem; color: var(--c-accent); }
.btn-text:hover { text-decoration: underline; }

.btn { background-color: var(--c-accent); color: white; }
.btn:hover:not(:disabled) { background-color: var(--c-accent-hover); }
.btn:disabled { background-color: var(--c-border); color: var(--c-text-secondary); cursor: not-allowed; opacity: 0.7; }

.btn.btn-secondary { background-color: var(--c-surface-secondary); color: var(--c-text-primary); border-color: var(--c-border); }
.btn.btn-secondary:hover:not(:disabled) { background-color: var(--c-border); }
.btn.btn-danger { background-color: var(--c-danger); color: white; }
.btn.btn-danger:hover:not(:disabled) { opacity: 0.85; }

input, select, textarea {
  width: 100%; padding: 0.5rem 0.75rem; border: 1px solid var(--c-border);
  border-radius: var(--radius-md); font-size: 0.875rem; font-family: var(--font-family-sans);
  background-color: var(--c-surface); color: var(--c-text-primary); transition: var(--transition-fast);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--c-accent); box-shadow: 0 0 0 2px var(--c-accent-hover); }
textarea { resize: vertical; min-height: 80px; }
.form-group { display: flex; flex-direction: column; gap: 0.25rem; }
.form-group label { font-size: 0.875rem; font-weight: 500; color: var(--c-text-secondary); }

/* --- Cards, Tables, Charts --- */
.stats-container { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 1rem; }
.stat-card {
  background-color: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-lg);
  padding: 1.25rem; display: flex; flex-direction: column; gap: 0.25rem;
}
.stat-card i { width: 1.5rem; height: 1.5rem; color: var(--c-accent); }
.stat-card h3 { font-size: 0.875rem; font-weight: 500; color: var(--c-text-secondary); margin-top: 0.5rem; }
.stat-card .value { font-size: 2rem; font-weight: 700; color: var(--c-text-primary); }

.chart-container, .table-container, .settings-card {
  background-color: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius-lg); padding: 1rem; margin-top: 1.5rem;
}
.chart-container { max-height: 400px; }

.charts-grid, .charts-grid-full { display: grid; gap: 1.5rem; margin-top: 1.5rem; }
.charts-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.charts-grid-full { grid-template-columns: 1fr; }
.chart-container h3 { font-size: 1.125rem; font-weight: 600; margin-bottom: 1rem; }

.section-header, .page-header { display: flex; justify-content: space-between; align-items: center; margin: 2rem 0 1rem; flex-wrap: wrap; gap: 0.5rem; }
.page-header p { color: var(--c-text-secondary); font-size: 0.875rem; }

.table-container { padding: 0; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.75rem 1rem; text-align: left; border-bottom: 1px solid var(--c-border); }
th { background-color: var(--c-surface-secondary); font-size: 0.8rem; font-weight: 600; text-transform: uppercase; color: var(--c-text-secondary); }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background-color: var(--c-surface-secondary); }
.actions-cell { display: flex; gap: 0.5rem; }
.patient-name-cell { font-weight: 600; }
.patient-uid-cell { font-size: 0.8rem; color: var(--c-text-secondary); }

/* --- Modal --- */
.modal-overlay {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--c-overlay);
  display: flex; align-items: flex-start; justify-content: center; z-index: 2000;
  opacity: 0; visibility: hidden; transition: var(--transition-slow);
}
.modal-overlay.visible { opacity: 1; visibility: visible; }
.modal-content {
  background: var(--c-surface); border-radius: var(--radius-lg); box-shadow: 0 8px 30px var(--c-shadow);
  width: 100%; max-width: 600px; margin-top: 2rem; max-height: calc(100% - 4rem);
  display: flex; flex-direction: column; transform: translateY(-20px); transition: var(--transition-slow);
}
.modal-overlay.visible .modal-content { transform: translateY(0); }
.modal-header { display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.5rem; border-bottom: 1px solid var(--c-border); flex-shrink: 0; }
.modal-title { font-size: 1.25rem; font-weight: 600; }
.modal-body { padding: 1.5rem; display: flex; flex-direction: column; gap: 1.5rem; overflow-y: auto; }
.modal-footer { display: flex; justify-content: flex-end; gap: 0.5rem; padding: 1rem 1.5rem; border-top: 1px solid var(--c-border); flex-shrink: 0; }

/* 5. PAGE-SPECIFIC STYLES
-------------------------------------------------- */
.page-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.filters-bar { display: flex; gap: 0.75rem; margin-bottom: 1rem; flex-wrap: wrap; }
.settings-card { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-lg); padding: 1.5rem; display: flex; flex-direction: column; gap: 0.5rem; }
.settings-card p { color: var(--c-text-secondary); margin-bottom: 0.5rem; }

/* WhatsApp Page */
.whatsapp-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; margin-top: 1.5rem; }
.whatsapp-controls, .whatsapp-patient-list { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-lg); padding: 1.5rem; display: flex; flex-direction: column; gap: 1rem; }
.whatsapp-grid h3 { font-size: 1.125rem; font-weight: 600; margin-bottom: 0.5rem; }
.list-actions { display: flex; gap: 1rem; }
.list-container { flex-grow: 1; overflow-y: auto; max-height: 400px; border: 1px solid var(--c-border); border-radius: var(--radius-md); }
.wa-patient-item { display: flex; align-items: center; gap: 0.75rem; padding: 0.5rem 0.75rem; border-bottom: 1px solid var(--c-border); }
.wa-patient-item:last-child { border-bottom: none; }
.wa-patient-item input[type="checkbox"] { width: auto; }
.wa-patient-item label { flex-grow: 1; cursor: pointer; }
.progress-log-container { margin-top: 1.5rem; }
.progress-log { margin-top: 0.5rem; background: var(--c-surface-secondary); padding: 0.75rem; border-radius: var(--radius-md); font-size: 0.875rem; height: 150px; overflow-y: auto; }
.progress-log p { margin-bottom: 0.25rem; color: var(--c-text-secondary); }
.progress-log .sent { color: var(--c-success); }

/* --- MISC & FIXES --- */
/* Theme Switcher */
.theme-switcher {
  display: flex; align-items: center; padding: 0.5rem; background-color: var(--c-surface-secondary);
  border-radius: var(--radius-full); cursor: pointer;
}
.theme-switcher .ri-sun-line { display: none; }
.theme-switcher .ri-moon-line { display: block; }
body.dark-mode .theme-switcher .ri-sun-line { display: block; }
body.dark-mode .theme-switcher .ri-moon-line { display: none; }

/* Rotation Animation */
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.rotating { animation: spin 1s linear infinite; }

/* Modal Form Styles */
.treatment-logs-list { display: flex; flex-direction: column; gap: 0.5rem; max-height: 200px; overflow-y: auto; padding: 0.5rem; background-color: var(--c-surface-secondary); border-radius: var(--radius-md); }
.treatment-log-entry { display: flex; align-items: center; gap: 0.5rem; }
.treatment-log-entry .form-group { flex-grow: 1; }
.treatment-log-entry input[name="date"] { width: auto; }
.patient-details-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 0.5rem 1.5rem; margin-bottom: 1rem; }
.patient-notes { background-color: var(--c-surface-secondary); padding: 0.75rem; border-radius: var(--radius-md); margin: 1rem 0; }
.patient-notes p { margin-top: 0.25rem; }
.treatment-history { display: flex; flex-direction: column; gap: 0.5rem; }
.log-item { display: flex; justify-content: space-between; padding: 0.5rem; border-bottom: 1px dashed var(--c-border); }
.log-item:last-child { border: none; }
.log-date { font-weight: 500; color: var(--c-text-secondary); }
.log-treatment { font-weight: 600; }

/* Empty State & Toasts */
.empty-state { text-align: center; padding: 2rem 1rem; color: var(--c-text-secondary); font-style: italic; }
.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translate(-50%, 150%); padding: 1rem 1.5rem;
  border-radius: var(--radius-md); background-color: var(--c-text-primary); color: var(--c-bg);
  box-shadow: 0 4px 12px var(--c-shadow); z-index: 9999;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94); font-weight: 500;
}
.toast.show { transform: translate(-50%, 0); }
.toast.toast-success { background-color: var(--c-success); color: white; }
.toast.toast-error { background-color: var(--c-danger); color: white; }
.toast.toast-info { background-color: #0078d4; color: white; }
.toast.toast-warning { background-color: var(--c-warning); color: #1f1f1f; }

/* 6. RESPONSIVE MEDIA QUERIES
-------------------------------------------------- */
@media (min-width: 640px) { .form-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 992px) { .whatsapp-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 768px) {
  .dashboard { overflow-x: visible; }
  .sidebar { transform: translateX(0); box-shadow: none; }
  #menu-toggle { display: none; }
  .sidebar-overlay { display: none; }
  .main-content { margin-left: 240px; }
  .header, .content-area { padding: 1.5rem; }
  .modal-overlay { align-items: center; }
  .modal-content { width: 90%; margin-top: 0; }
}

/* FINAL FIXES from user feedback */
.wa-search {
    flex-grow: 1;
    padding: 0.5rem 0.75rem !important;
    font-size: 0.875rem !important;
    height: auto;
}
.whatsapp-patient-list .list-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}
.report-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}
.report-summary .value-text {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--c-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.form-group { position: relative; }
.suggestions { z-index: 2001; }