/* ===========================================
   MedOrbit v2 - Design System
   Modern, polished, dark-mode ready
   =========================================== */

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

html, body {
    width: 100%;
}

/* ===========================================
   Layout shells — exactly two, chosen via a body class, defined once here.

   .app-shell  — fixed viewport, no document scroll; internal panes (chat
                 messages, map, conversation sidebar) scroll themselves.
                 index.html and find-clinics.html ONLY.
   (default)   — every other page. No class needed: normal document flow,
                 normal scrolling. html/body get no explicit height or
                 overflow, so the browser's own natural scrolling behavior
                 applies — this was the bug: html previously had a blanket
                 overflow:hidden that body.site-page never reset, silently
                 blocking real scroll input (wheel/touch/keyboard) on every
                 content page even though body itself looked scrollable.
   =========================================== */
html.app-shell, body.app-shell {
    height: 100%;
    overflow: hidden;
}

/* Smooth scroll for anchor jumps / the back-to-top affordance, on document
   pages only — the app shell's internal panes handle their own scrolling. */
html:not(.app-shell) {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html:not(.app-shell) {
        scroll-behavior: auto;
    }
}

/* Reference-counted overlay lock (see Dom.lockScroll/unlockScroll) — blocks
   background scroll while a drawer/sidebar/bottom-sheet overlay is open. */
body.scroll-locked {
    overflow: hidden;
}

body {
    font-family: 'Cairo', 'Inter', system-ui, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background 0.3s ease, color 0.3s ease;
}

[lang="en"] body {
    font-family: 'Inter', system-ui, sans-serif;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: transparent;
    color: inherit;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

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

kbd {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    padding: 2px 6px;
    background: var(--bg-soft);
    color: var(--text-soft);
    border: 1px solid var(--border);
    border-radius: 4px;
}

/* === Design Tokens === */
:root {
    /* Brand */
    --primary: #2563EB;
    --primary-dark: #1D4ED8;
    --primary-light: #3B82F6;
    --primary-50: #EFF6FF;
    --primary-100: #DBEAFE;
    --primary-gradient: linear-gradient(135deg, #2563EB 0%, #7C3AED 100%);

    --secondary: #10B981;
    --secondary-gradient: linear-gradient(135deg, #10B981 0%, #06B6D4 100%);

    --accent: #F59E0B;
    --accent-gradient: linear-gradient(135deg, #F59E0B 0%, #EF4444 100%);

    --danger: #EF4444;
    --warning: #F59E0B;
    --success: #10B981;
    --info: #06B6D4;

    /* Category colors */
    --cat-clinic: #2563EB;
    --cat-pharmacy: #F59E0B;
    --cat-hospital: #DC2626;
    --cat-doctor: #7C3AED;

    /* Neutral - Light */
    --bg: #F9FAFB;
    --bg-soft: #F3F4F6;
    --bg-card: #FFFFFF;
    --bg-elevated: #FFFFFF;
    --bg-overlay: rgba(0, 0, 0, 0.5);

    --text: #111827;
    --text-soft: #4B5563;
    --text-mute: #6B7280;
    --text-faint: #9CA3AF;

    --border: #E5E7EB;
    --border-strong: #D1D5DB;

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.06), 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.1), 0 4px 8px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 24px 48px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.06);
    --shadow-glow: 0 0 24px rgba(37, 99, 235, 0.25);

    /* Radii */
    --r-xs: 4px;
    --r-sm: 6px;
    --r-md: 10px;
    --r-lg: 14px;
    --r-xl: 18px;
    --r-2xl: 24px;
    --r-full: 9999px;

    /* Transitions */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --t-fast: 150ms var(--ease);
    --t-base: 250ms var(--ease);
    --t-slow: 400ms var(--ease);

    /* Layout */
    --header-h: 64px;
    --filter-h: 52px;
    --z-header: 100;
    --z-filter: 90;
    --z-modal: 1000;
    --z-drawer: 1500;
    --z-toast: 2000;
}

/* ===========================================
   Responsive breakpoints — the ONE set used across every stylesheet.
   CSS has no variables usable inside @media conditions, so these are a
   documented convention, not literal substitution: every @media in this
   codebase MUST use one of these exact three values (max-width).
     1024px — tablet landscape / small laptop (grids go 2-col, sheets start)
      768px — tablet portrait / large phone (hamburger drawer kicks in)
      480px — phone (single column everywhere, bottom-sheet modals)
   Test at 360/414 (both fall under 480), 768, 1024, and 1440 (no query
   applies — default desktop layout).
   =========================================== */

/* === Dark Mode === */
[data-theme="dark"] {
    --bg: #0B1220;
    --bg-soft: #111827;
    --bg-card: #1F2937;
    --bg-elevated: #1F2937;
    --bg-overlay: rgba(0, 0, 0, 0.7);

    --text: #F9FAFB;
    --text-soft: #E5E7EB;
    --text-mute: #9CA3AF;
    --text-faint: #6B7280;

    --border: #374151;
    --border-strong: #4B5563;

    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.25), 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 12px 24px rgba(0, 0, 0, 0.4), 0 4px 8px rgba(0, 0, 0, 0.25);
    --shadow-xl: 0 24px 48px rgba(0, 0, 0, 0.5), 0 8px 16px rgba(0, 0, 0, 0.3);
}

/* === App Loader (initial) === */
.app-loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.app-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
}

.loader-logo {
    width: 72px;
    height: 72px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    color: white;
    border-radius: var(--r-lg);
    font-size: 32px;
    box-shadow: var(--shadow-glow);
    animation: pulse-scale 1.5s ease-in-out infinite;
}

@keyframes pulse-scale {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.loader-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
}

.loader-bar {
    width: 160px;
    height: 3px;
    margin: 0 auto;
    background: var(--bg-soft);
    border-radius: var(--r-full);
    overflow: hidden;
}

.loader-bar-fill {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: var(--r-full);
    animation: loading 1.2s ease-in-out infinite;
}

@keyframes loading {
    0% { transform: translateX(-100%); width: 30%; }
    50% { width: 60%; }
    100% { transform: translateX(200%); width: 30%; }
}

/* === App Shell === */
.app {
    display: grid;
    grid-template-rows: var(--header-h) var(--filter-h) 1fr;
    height: 100vh;
    background: var(--bg);
}

/* === Header === */
.app-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 0 20px;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    z-index: var(--z-header);
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.brand-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    color: white;
    border-radius: var(--r-md);
    font-size: 18px;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
    transition: transform var(--t-base);
}

.brand-icon:hover {
    transform: scale(1.05);
}

[dir="rtl"] .brand-icon i {
    transform: scaleX(-1);
}

.brand-text h1 {
    font-size: 16px;
    font-weight: 800;
    color: var(--text);
    line-height: 1.2;
}

.brand-text p {
    font-size: 11px;
    color: var(--text-mute);
    font-weight: 500;
}

/* Search bar in header */
.header-search {
    flex: 1;
    max-width: 480px;
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 12px;
    height: 40px;
    background: var(--bg-soft);
    border: 1.5px solid transparent;
    border-radius: var(--r-full);
    transition: all var(--t-fast);
}

.header-search:focus-within {
    background: var(--bg-card);
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.header-search i {
    color: var(--text-mute);
    font-size: 14px;
}

.header-search input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-size: 14px;
    color: var(--text);
}

.header-search input::placeholder {
    color: var(--text-faint);
}

.header-search kbd {
    flex-shrink: 0;
}

.header-actions {
    display: flex;
    gap: 6px;
    margin-right: auto;
}

[dir="rtl"] .header-actions {
    margin-right: 0;
    margin-left: auto;
}

.icon-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-soft);
    color: var(--text-soft);
    border-radius: var(--r-md);
    transition: all var(--t-fast);
    font-size: 14px;
    font-weight: 600;
    flex-shrink: 0;
}

.icon-btn:hover {
    background: var(--primary-50);
    color: var(--primary);
    transform: translateY(-1px);
}

[data-theme="dark"] .icon-btn:hover {
    background: rgba(37, 99, 235, 0.15);
}

.icon-btn span {
    font-size: 12px;
    font-weight: 700;
}

/* === Filter Bar === */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 20px;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    overflow-x: auto;
    scrollbar-width: none;
    z-index: var(--z-filter);
}

.filter-bar::-webkit-scrollbar {
    display: none;
}

.filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--bg-soft);
    color: var(--text-soft);
    border-radius: var(--r-full);
    font-size: 13px;
    font-weight: 600;
    transition: all var(--t-fast);
    white-space: nowrap;
    flex-shrink: 0;
}

.filter-chip i {
    font-size: 12px;
}

.filter-chip:hover {
    background: var(--primary-50);
    color: var(--primary);
}

[data-theme="dark"] .filter-chip:hover {
    background: rgba(37, 99, 235, 0.15);
}

.filter-chip.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

[data-theme="dark"] .filter-chip.active {
    background: var(--primary-light);
    color: white;
}

.filter-spacer {
    flex: 1;
}

.filter-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-mute);
    font-weight: 500;
    padding: 4px 12px;
    background: var(--bg-soft);
    border-radius: var(--r-full);
    flex-shrink: 0;
}

.meta-count {
    background: var(--primary);
    color: white;
    padding: 1px 8px;
    border-radius: var(--r-full);
    font-size: 11px;
    font-weight: 700;
    min-width: 20px;
    text-align: center;
}

/* === Main Layout === */
.app-main {
    display: grid;
    grid-template-columns: 440px 1fr;
    overflow: hidden;
    min-height: 0;
}

/* === Toast === */
.toast-container {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    background: var(--bg-elevated);
    border-radius: var(--r-md);
    box-shadow: var(--shadow-lg);
    min-width: 280px;
    pointer-events: auto;
    animation: toastIn 0.3s var(--ease-out);
    border: 1px solid var(--border);
    font-size: 14px;
    color: var(--text);
}

.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }
.toast.warning { border-left: 4px solid var(--warning); }
.toast.info { border-left: 4px solid var(--info); }

[dir="rtl"] .toast.success,
[dir="rtl"] .toast.error,
[dir="rtl"] .toast.warning,
[dir="rtl"] .toast.info {
    border-left: 1px solid var(--border);
    border-right: 4px solid;
}

[dir="rtl"] .toast.success { border-right-color: var(--success); }
[dir="rtl"] .toast.error { border-right-color: var(--danger); }
[dir="rtl"] .toast.warning { border-right-color: var(--warning); }
[dir="rtl"] .toast.info { border-right-color: var(--info); }

.toast i {
    font-size: 16px;
}

.toast.success i { color: var(--success); }
.toast.error i { color: var(--danger); }
.toast.warning i { color: var(--warning); }
.toast.info i { color: var(--info); }

@keyframes toastIn {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* === Mobile chat/map view toggle (FAB, mobile only) ===
   Anchored to the opposite side from .map-controls (which sit at
   inset-inline-end) so the two never overlap. */
.mobile-view-toggle {
    display: none;
    position: fixed;
    bottom: 20px;
    inset-inline-start: 20px;
    width: 52px;
    height: 52px;
    border-radius: var(--r-full);
    background: var(--primary);
    color: white;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: var(--shadow-lg);
    z-index: 1001;
    transition: transform var(--t-fast);
}

.mobile-view-toggle:active {
    transform: scale(0.94);
}

/* === Responsive === */
@media (max-width: 1024px) {
    .header-search {
        max-width: 280px;
    }

    .header-search kbd {
        display: none;
    }

    .app-main {
        grid-template-columns: 340px 1fr;
    }
}

@media (max-width: 768px) {
    .app {
        grid-template-rows: var(--header-h) var(--filter-h) 1fr;
    }

    /* Mobile: show one panel at a time (chat by default) instead of a
       cramped 50/50 stack — .mobile-view-toggle switches between them. */
    .app-main {
        grid-template-columns: 1fr;
        grid-template-rows: 1fr;
    }

    .map-panel {
        display: none;
    }

    .app-main.mobile-show-map .chat-panel,
    .app-main.mobile-show-map .list-panel {
        display: none;
    }

    .app-main.mobile-show-map .map-panel {
        display: flex;
    }

    .mobile-view-toggle {
        display: flex;
    }

    .header-search {
        display: none;
    }

    .brand-text {
        display: none;
    }
}

@media (max-width: 480px) {
    .app-header {
        padding: 0 12px;
        gap: 8px;
    }

    .filter-bar {
        padding: 0 12px;
    }

    .filter-chip {
        min-height: 44px;
        padding: 8px 14px;
        font-size: 13px;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: var(--r-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-faint);
}