/*
Vighnaharta Clinic — Design System
Palette extracted directly from the clinic's real logo:
navy #022A4E, teal #0C8784, gold #C58B28, maroon #B33629
*/

/* =========================================================
   1. DESIGN TOKENS
   ========================================================= */
:root {
    --color-navy: #022A4E;
    --color-navy-dark: #011B33;
    --color-teal: #0C8784;
    --color-teal-dark: #086361;
    --color-teal-light: #E3F4F3;
    --color-gold: #C58B28;
    --color-gold-light: #FBF3E3;
    --color-maroon: #B33629;

    --color-primary: var(--color-teal);
    --color-primary-dark: var(--color-teal-dark);
    --color-primary-light: var(--color-teal-light);
    --color-accent: var(--color-gold);
    --color-danger: #D64545;
    --color-success: #1E9E5A;
    --color-warning: var(--color-gold);

    --color-bg: #F6F8F8;
    --color-surface: #FFFFFF;
    --color-surface-alt: #FAFBFB;
    --color-text: #12201C;
    --color-text-muted: #5C6E68;
    --color-border: #E4EBE9;
    --color-input-bg: #FFFFFF;
    --color-input-border: #D2DEDA;

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-pill: 999px;

    --shadow-xs: 0 1px 3px rgba(2, 42, 78, 0.06);
    --shadow-sm: 0 3px 10px rgba(2, 42, 78, 0.08);
    --shadow-md: 0 12px 30px rgba(2, 42, 78, 0.1);
    --shadow-lg: 0 24px 56px rgba(2, 42, 78, 0.16);
    --shadow-glow-teal: 0 8px 24px rgba(12, 135, 132, 0.3);

    --gradient-primary: linear-gradient(135deg, var(--color-teal) 0%, var(--color-teal-dark) 100%);
    --gradient-hero: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-dark) 55%, var(--color-teal-dark) 100%);
    --gradient-gold: linear-gradient(135deg, var(--color-gold) 0%, #A8721E 100%);

    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

    --fs-xs: 0.8rem;
    --fs-sm: 0.9rem;
    --fs-base: 1rem;
    --fs-lg: 1.15rem;
    --fs-xl: 1.5rem;
    --fs-2xl: 2.1rem;
    --fs-3xl: 3rem;

    --navbar-height: 72px;
    --sidebar-width: 268px;
    --sidebar-width-collapsed: 78px;

    --transition-fast: 160ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 260ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 420ms cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
    --color-bg: #0A1210;
    --color-surface: #131D1A;
    --color-surface-alt: #0F1815;
    --color-text: #EAF2EF;
    --color-text-muted: #92A39D;
    --color-border: #223029;
    --color-input-bg: #192623;
    --color-input-border: #354841;
    --color-primary-light: rgba(12, 135, 132, 0.16);
    --shadow-xs: 0 1px 3px rgba(0,0,0,0.35);
    --shadow-sm: 0 3px 12px rgba(0,0,0,0.35);
    --shadow-md: 0 12px 32px rgba(0,0,0,0.4);
    --shadow-lg: 0 24px 60px rgba(0,0,0,0.5);
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}

/* =========================================================
   2. RESET / BASE
   ========================================================= */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { max-width: 100%; overflow-x: hidden; }

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    transition: background-color var(--transition-base), color var(--transition-base);
}

::selection { background: var(--color-teal); color: #fff; }
img, svg, video { max-width: 100%; height: auto; }
a { color: var(--color-teal); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-teal-dark); }

/* =========================================================
   3. TYPOGRAPHY
   ========================================================= */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--color-navy);
    letter-spacing: -0.01em;
}
[data-theme="dark"] h1, [data-theme="dark"] h2, [data-theme="dark"] h3 { color: var(--color-text); }

.text-white, .text-white h1, .text-white h2, .text-white h3,
.hero-section h1, .hero-section h2 { color: #fff !important; }

.eyebrow {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: var(--fs-xs);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-teal);
}

.text-muted-app { color: var(--color-text-muted) !important; }

/* =========================================================
   4. NAVBAR
   ========================================================= */
.app-navbar {
    background-color: var(--color-navy);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
    min-height: var(--navbar-height);
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
    position: sticky;
    top: 0;
    z-index: 1030;
}
.app-navbar .navbar-toggler { border-color: rgba(255,255,255,0.25); }
.app-navbar .navbar-toggler-icon { filter: invert(1); }
.app-navbar .nav-link {
    color: rgba(255,255,255,0.82) !important;
    font-weight: 500;
    font-size: var(--fs-sm);
    padding: 0.5rem 1rem;
    position: relative;
}
.app-navbar .nav-link::after {
    content: '';
    position: absolute;
    left: 1rem; right: 1rem;
    bottom: 0.3rem;
    height: 2px;
    background: var(--color-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}
.app-navbar .nav-link:hover, .app-navbar .nav-link.active { color: #fff !important; }
.app-navbar .nav-link:hover::after, .app-navbar .nav-link.active::after { transform: scaleX(1); }

.text-logo {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--fs-lg);
    color: #fff;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}
.text-logo img { height: 40px; width: auto; }
.text-logo .brand-sub { color: var(--color-gold); font-weight: 400; font-size: 0.85em; }

.btn-icon {
    width: 42px; height: 42px; border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.2);
    background: rgba(255,255,255,0.08);
    color: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}
.btn-icon:hover { background: rgba(255,255,255,0.18); }
.btn-icon:active { transform: scale(0.95); }

/* =========================================================
   5. SIDEBAR (staff portals) — mobile scroll fix included
   ========================================================= */
.app-shell { display: flex; min-height: calc(100vh - var(--navbar-height)); }

.app-sidebar {
    width: var(--sidebar-width);
    background-color: var(--color-surface);
    border-right: 1px solid var(--color-border);
    flex-shrink: 0;
    transition: width var(--transition-base), transform var(--transition-base);
    max-height: 100vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    position: sticky;
    top: 0;
}

@media (max-width: 991.98px) {
    .app-sidebar {
        position: fixed;
        top: var(--navbar-height);
        left: 0;
        bottom: 0;
        height: calc(100vh - var(--navbar-height));
        max-height: calc(100vh - var(--navbar-height));
        z-index: 1040;
        transform: translateX(-100%);
        box-shadow: var(--shadow-lg);
    }
    .app-sidebar.mobile-open { transform: translateX(0); }
    .sidebar-backdrop {
        display: none;
        position: fixed;
        inset: var(--navbar-height) 0 0 0;
        background: rgba(2, 42, 78, 0.45);
        z-index: 1035;
    }
    .sidebar-backdrop.show { display: block; }
}

.app-sidebar.collapsed { width: var(--sidebar-width-collapsed); }
.app-sidebar.collapsed .sidebar-label { display: none; }

.sidebar-group-label {
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    padding: 1.1rem 1.25rem 0.4rem;
}
.app-sidebar.collapsed .sidebar-group-label { display: none; }

.sidebar-link {
    display: flex; align-items: center; gap: 0.75rem;
    padding: 0.65rem 1rem;
    border-radius: var(--radius-sm);
    color: var(--color-text);
    margin: 0.15rem 0.6rem;
    font-weight: 500;
    font-size: var(--fs-sm);
}
.sidebar-link i { font-size: 1.15rem; width: 22px; text-align: center; flex-shrink: 0; }
.sidebar-link:hover { background-color: var(--color-primary-light); color: var(--color-teal); }
.sidebar-link.active {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: var(--shadow-glow-teal);
}

.app-content { flex: 1; min-width: 0; padding: 1.75rem; }
@media (max-width: 767.98px) { .app-content { padding: 1.1rem; } }

/* =========================================================
   6. CARDS
   ========================================================= */
.card, .app-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xs);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.card:hover, .app-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.app-card.no-hover-lift:hover { transform: none; box-shadow: var(--shadow-xs); }

.app-card-header { padding: 1.1rem 1.35rem; border-bottom: 1px solid var(--color-border); font-weight: 600; }

.stat-card {
    padding: 1.35rem 1.5rem;
    border-radius: var(--radius-lg);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-xs);
    position: relative;
    overflow: hidden;
}
.stat-card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%;
    background: var(--gradient-primary);
}
.stat-card .stat-value { font-family: var(--font-display); font-size: var(--fs-2xl); font-weight: 700; color: var(--color-navy); }
.stat-card .stat-label { color: var(--color-text-muted); font-size: var(--fs-sm); font-weight: 500; }

/* =========================================================
   7. BUTTONS
   ========================================================= */
.btn {
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: var(--fs-sm);
    min-height: 46px;
    display: inline-flex; align-items: center; justify-content: center;
    padding-left: 1.3rem; padding-right: 1.3rem;
    transition: transform 120ms ease, box-shadow var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0) scale(0.97); }
.btn-sm { min-height: 38px; font-size: var(--fs-xs); }
.btn-lg { min-height: 54px; font-size: var(--fs-base); }

.btn-primary { background: var(--gradient-primary); border-color: var(--color-teal); color: #fff; }
.btn-primary:hover, .btn-primary:focus { background: var(--color-teal-dark); border-color: var(--color-teal-dark); box-shadow: var(--shadow-glow-teal); color: #fff; }

.btn-outline-primary { color: var(--color-teal); border: 1.5px solid var(--color-teal); }
.btn-outline-primary:hover { background-color: var(--color-teal); border-color: var(--color-teal); color: #fff; }

.btn-gold { background: var(--gradient-gold); border-color: var(--color-gold); color: #fff; }

/* =========================================================
   8. FORMS
   ========================================================= */
.form-control, .form-select {
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--color-input-border);
    background-color: var(--color-input-bg);
    color: var(--color-text);
    min-height: 48px;
    padding: 0.6rem 1rem;
    font-size: var(--fs-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-control:focus, .form-select:focus {
    border-color: var(--color-teal);
    box-shadow: 0 0 0 0.2rem var(--color-primary-light);
    background-color: var(--color-input-bg);
    color: var(--color-text);
}
.form-control::placeholder { color: var(--color-text-muted); opacity: 0.65; }
.form-label { font-weight: 600; font-size: var(--fs-sm); color: var(--color-text); margin-bottom: 0.4rem; }

/* =========================================================
   9. TABLES
   ========================================================= */
.table { color: var(--color-text); vertical-align: middle; }
.table thead th {
    border-bottom: 2px solid var(--color-border);
    color: var(--color-text-muted);
    font-weight: 700;
    font-size: var(--fs-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.table td, .table th { border-color: var(--color-border); }
.table-hover tbody tr:hover { background-color: var(--color-primary-light); }

/* nav-tabs (used on patient-profile.php and similar tabbed views):
   Bootstrap's defaults assume a white page background, so this
   theme-aware override is needed for the dark surface used here */
.nav-tabs {
    border-bottom-color: var(--color-border);
}
.nav-tabs .nav-link {
    color: var(--color-text-muted);
    border: none;
    border-bottom: 2px solid transparent;
    background: transparent;
    font-weight: 500;
}
.nav-tabs .nav-link:hover {
    color: var(--color-teal);
    border-color: transparent;
}
.nav-tabs .nav-link.active {
    color: var(--color-teal);
    background: transparent;
    border-bottom-color: var(--color-teal);
}

/* =========================================================
   10. AUTH PAGES
   ========================================================= */
.auth-wrapper {
    min-height: calc(100vh - var(--navbar-height));
    display: flex; align-items: center; justify-content: center;
    padding: 2rem 1rem;
    background:
        radial-gradient(circle at 15% 20%, var(--color-primary-light) 0%, transparent 45%),
        radial-gradient(circle at 85% 80%, var(--color-gold-light) 0%, transparent 45%);
}
.auth-card { width: 100%; max-width: 440px; padding: 2rem 1.5rem; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
@media (min-width: 576px) { .auth-card { padding: 2.5rem; } }

/* =========================================================
   11. FOOTER
   ========================================================= */
.app-footer { background-color: var(--color-navy); color: rgba(255,255,255,0.85); border-top: none; }
.app-footer .text-logo { color: #fff; }
.app-footer a { color: rgba(255,255,255,0.85); }
.app-footer a:hover { color: var(--color-gold); }
.footer-dev-link { color: var(--color-gold); font-weight: 500; }

/* =========================================================
   12. HERO
   ========================================================= */
.hero-section {
    background: var(--gradient-hero);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.hero-section::after {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(circle at 80% 20%, rgba(197, 139, 40, 0.18) 0%, transparent 50%);
    pointer-events: none;
}

/* =========================================================
   13. RESPONSIVE SAFETY NET
   ========================================================= */
.container, .container-fluid { max-width: 100%; }
.modal-dialog { max-width: calc(100vw - 1.5rem); margin-left: auto; margin-right: auto; }
.modal-content {
    background-color: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}
.modal-header, .modal-footer {
    border-color: var(--color-border);
}
[data-theme="dark"] .modal-header .btn-close {
    filter: invert(1);
}
@media (max-width: 767.98px) {
    .modal-dialog { max-width: calc(100vw - 1rem); }
}

/* =========================================================
   14. INTERACTIVITY & MOTION
   ========================================================= */
main, .app-content { animation: page-fade-in 0.45s ease both; }
@keyframes page-fade-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.badge { animation: badge-pop 0.25s ease both; border-radius: var(--radius-pill); }
@keyframes badge-pop { from { transform: scale(0.7); opacity: 0; } to { transform: scale(1); opacity: 1; } }

.alert { animation: alert-slide-in 0.35s ease both; border-radius: var(--radius-sm); }
@keyframes alert-slide-in { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }

.skeleton {
    background: linear-gradient(90deg, var(--color-border) 25%, var(--color-bg) 37%, var(--color-border) 63%);
    background-size: 400% 100%;
    animation: skeleton-loading 1.4s ease infinite;
    border-radius: var(--radius-sm);
}
@keyframes skeleton-loading { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }