/* ============================================
   ShipAI — Modern Theme with Light/Dark Mode
   Clean, professional medical platform design
   ============================================ */

/* === LIGHT THEME (default) === */
:root {
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    --bg-input: #ffffff;
    --bg-navbar: #ffffff;
    --bg-footer: #1e293b;
    --bg-footer-text: #94a3b8;

    --accent: #6DB9A6;
    --accent-light: #7ECC7B;
    --accent-dark: #5BA392;
    --accent-bg: rgba(109, 185, 166, 0.08);
    --accent-bg-hover: rgba(109, 185, 166, 0.12);
    --accent-gradient: linear-gradient(135deg, #6DB9A6 0%, #5BA392 100%);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --text-on-accent: #ffffff;

    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;

    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #6DB9A6;
    --success-color: #22c55e;

    --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
    --card-shadow-hover: 0 10px 25px rgba(0, 0, 0, 0.1);
    --navbar-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    --bg-navbar-rgb: 255, 255, 255;
    --anatomy-bg: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --transition: all 0.2s ease;
    --transition-slow: all 0.3s ease;
}

/* === DARK THEME === */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --bg-input: #1e293b;
    --bg-navbar: #1e293b;
    --bg-footer: #0f172a;
    --bg-footer-text: #64748b;

    --accent: #6DB9A6;
    --accent-light: #7ECC7B;
    --accent-dark: #5BA392;
    --accent-bg: rgba(109, 185, 166, 0.15);
    --accent-bg-hover: rgba(109, 185, 166, 0.25);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --border-color: #334155;
    --border-hover: #475569;

    --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --card-shadow-hover: 0 10px 25px rgba(0, 0, 0, 0.4);
    --navbar-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --bg-navbar-rgb: 30, 41, 59;
    --anatomy-bg: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

/* === GLOBAL RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }

body {
    display: flex;
    flex-direction: column;
    font-family: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    line-height: 1.7;
    font-size: 15px;
    letter-spacing: -0.01em;
    transition: background 0.3s ease, color 0.3s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

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

/* === NAVBAR — Spline-style floating pill === */
.navbar {
    background: transparent !important;
    box-shadow: none;
    padding: 0.75rem 0;
    border-bottom: none;
    transition: background 0.3s ease, padding 0.3s ease, transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease;
    z-index: 1050;
}
.navbar.navbar-hidden {
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
}

/* Floating pill container */
.navbar-container {
    background: rgba(var(--bg-navbar-rgb, 255, 255, 255), 0.65);
    backdrop-filter: blur(20px) saturate(1.4);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
    border: 1px solid rgba(var(--bg-navbar-rgb, 255, 255, 255), 0.18);
    border-radius: 999px;
    padding: 0.4rem 0.6rem 0.4rem 1rem;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06), 0 1px 4px rgba(0, 0, 0, 0.04);
    transition: var(--transition-slow);
    /* Override Bootstrap container fixed widths */
    max-width: fit-content !important;
    width: auto !important;
    margin: 0 auto;
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
}
[data-theme="dark"] .navbar-container {
    background: rgba(var(--bg-navbar-rgb, 30, 41, 59), 0.55);
    border-color: rgba(255, 255, 255, 0.06);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25), 0 1px 4px rgba(0, 0, 0, 0.15);
}

/* Shrink navbar on scroll */
.navbar.scrolled .navbar-container {
    background: rgba(var(--bg-navbar-rgb, 255, 255, 255), 0.85);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1), 0 2px 8px rgba(0, 0, 0, 0.06);
}
[data-theme="dark"] .navbar.scrolled .navbar-container {
    background: rgba(var(--bg-navbar-rgb, 30, 41, 59), 0.75);
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.15rem;
    color: var(--text-primary) !important;
    display: flex;
    align-items: center;
    gap: 0.45rem;
    letter-spacing: -0.03em;
    padding: 0;
}

.header_logo {
    height: 30px;
    width: auto;
    border-radius: 8px;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 0.1rem;
    flex-wrap: nowrap;
}

.navbar .nav-link {
    color: var(--text-secondary) !important;
    font-weight: 600;
    font-size: 0.8rem;
    padding: 0.35rem 0.7rem !important;
    border-radius: 999px;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
}
.navbar .nav-link:hover {
    color: var(--text-primary) !important;
    background: rgba(var(--bg-navbar-rgb, 255, 255, 255), 0.6);
}
[data-theme="dark"] .navbar .nav-link:hover {
    background: rgba(255, 255, 255, 0.06);
}
.navbar .nav-link.active {
    color: var(--text-on-accent) !important;
    background: var(--accent);
}
.navbar .nav-link.active::after {
    display: none;
}

.navbar-toggler {
    border: 1px solid var(--border-color);
    padding: 0.35rem 0.55rem;
    border-radius: 999px;
}
.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23475569' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
[data-theme="dark"] .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%2394a3b8' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Navbar controls: theme toggle + lang switcher */
.navbar-controls {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

/* Theme toggle button */
.theme-toggle {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    padding: 0;
}
.theme-toggle:hover {
    background: var(--accent-bg-hover);
    color: var(--accent);
}

/* Language switcher */
.lang-switcher {
    display: flex;
    align-items: center;
    background: rgba(var(--bg-navbar-rgb, 255, 255, 255), 0.4);
    border: 1px solid transparent;
    border-radius: 999px;
    overflow: hidden;
    gap: 1px;
}
.lang-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.28rem 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
}
.lang-btn + .lang-btn {
    border-left: none;
}
.lang-btn:hover { color: var(--text-primary); background: rgba(var(--bg-navbar-rgb, 255, 255, 255), 0.5); }
.lang-btn.active {
    color: var(--text-on-accent);
    background: var(--accent);
    font-weight: 700;
}

/* Dropdown menu */
.dropdown-menu {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--card-shadow-hover);
    padding: 0.5rem;
    min-width: 180px;
}
.dropdown-item {
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
    transition: var(--transition);
}
.dropdown-item:hover {
    background: var(--accent-bg);
    color: var(--accent);
}
.dropdown-divider { border-color: var(--border-color); }

/* === CARDS === */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--card-shadow);
    transition: var(--transition-slow);
    overflow: hidden;
    color: var(--text-primary);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.card.shadow-sm {
    box-shadow: var(--card-shadow) !important;
}
.card-body,
.card-title,
.card-text,
.card-body h1,
.card-body h2,
.card-body h3,
.card-body h4,
.card-body h5,
.card-body h6,
.card-body p,
.card-body li,
.card-body span,
.card-body label,
.card-body small {
    color: inherit;
}
.card-body .text-muted,
.card-text.text-muted,
.card-body small.text-muted {
    color: var(--text-secondary) !important;
}
.card:hover {
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-2px);
}
.card.no-hover:hover,
.card.no-animate:hover {
    box-shadow: var(--card-shadow);
    transform: none;
}
.card-header {
    background: var(--bg-card) !important;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.25rem;
}

/* === BUTTONS === */
.btn {
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.55rem 1.4rem;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: var(--text-on-accent);
}
.btn-primary:hover {
    background: var(--accent-dark);
    color: var(--text-on-accent);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(109, 185, 166, 0.3);
}

.btn-outline-primary {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}
.btn-outline-primary:hover {
    background: var(--accent);
    color: var(--text-on-accent);
}

.btn-secondary {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.btn-outline-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
}
.btn-outline-secondary:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--border-hover);
}

.btn-outline-danger {
    background: transparent;
    color: var(--danger-color);
    border: 2px solid var(--danger-color);
}
.btn-outline-danger:hover {
    background: var(--danger-color);
    color: #fff;
}

.btn-lg { padding: 0.75rem 2rem; font-size: 1rem; }
.btn-sm { padding: 0.35rem 1rem; font-size: 0.85rem; }

/* === FORMS === */
.form-control,
.form-select {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 0.65rem 1rem;
    font-size: 0.95rem;
    transition: var(--transition);
}
.form-control:focus,
.form-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(109, 185, 166, 0.15);
    background: var(--bg-input);
    color: var(--text-primary);
    outline: none;
}
.form-control::placeholder { color: var(--text-muted); }

.form-label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.form-check-input {
    background-color: var(--bg-input);
    border-color: var(--border-color);
}
.form-check-input:checked {
    background-color: var(--accent);
    border-color: var(--accent);
}

.invalid-feedback {
    color: var(--danger-color);
    font-size: 0.85rem;
}

/* === ALERTS === */
.alert {
    border-radius: var(--radius-md);
    border: none;
    font-size: 0.9rem;
}
.alert-success {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}
.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}
.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
    border-left: 4px solid var(--warning-color);
}
.alert-info {
    background: rgba(59, 130, 246, 0.1);
    color: var(--info-color);
    border-left: 4px solid var(--info-color);
}
.btn-close {
    filter: none;
    opacity: 0.5;
}
[data-theme="dark"] .btn-close {
    filter: invert(1);
}

/* === BADGES === */
.badge { font-weight: 600; font-size: 0.78rem; border-radius: 6px; padding: 0.35rem 0.65rem; }
.bg-success { background-color: var(--success-color) !important; }
.bg-warning { background-color: var(--warning-color) !important; color: #000 !important; }
.bg-danger { background-color: var(--danger-color) !important; }

/* === MAIN CONTENT === */
main { flex-grow: 1; }

/* Center content blocks on about/home pages */
.container > .mb-5 {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.container > .mb-5 > * {
    width: 100%;
}

.hero-section .row {
    justify-content: center;
}

/* === FOOTER === */
.site-footer {
    background: var(--bg-footer);
    color: var(--bg-footer-text);
    padding: 3rem 0 1.5rem;
    margin-top: auto;
}
.site-footer h6 {
    color: #f1f5f9;
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.site-footer a {
    color: var(--bg-footer-text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
    display: inline-block;
    padding: 0.15rem 0;
}
.site-footer a:hover {
    color: #f1f5f9;
}
.footer-brand {
    font-size: 1.3rem;
    font-weight: 700;
    color: #f1f5f9 !important;
    margin-bottom: 0.75rem;
    display: inline-block;
}
.footer-description {
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 300px;
}
.footer-bottom {
    border-top: 1px solid rgba(148, 163, 184, 0.15);
    padding-top: 1.5rem;
    margin-top: 2rem;
    font-size: 0.85rem;
}
.footer-download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.15);
    color: var(--bg-footer-text);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    transition: var(--transition);
    cursor: pointer;
    text-decoration: none;
}
.footer-download-btn:hover {
    background: rgba(255,255,255,0.15);
    color: #f1f5f9;
}

/* === DASHBOARD NAVIGATION BLOCKS === */
.dash-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.25rem;
}
.dash-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    transition: var(--transition-slow);
    text-decoration: none;
    color: var(--text-primary);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.dash-card:hover {
    border-color: var(--accent);
    box-shadow: var(--card-shadow-hover);
    transform: translateY(-3px);
    color: var(--text-primary);
    text-decoration: none;
}
.dash-card-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}
.dash-card-title {
    font-weight: 700;
    font-size: 1.05rem;
    margin: 0;
}
.dash-card-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}
.dash-card-arrow {
    position: absolute;
    top: 1.75rem;
    right: 1.5rem;
    color: var(--text-muted);
    transition: var(--transition);
    font-size: 1.2rem;
}
.dash-card:hover .dash-card-arrow {
    color: var(--accent);
    transform: translateX(3px);
}

/* === ANIMATED GRADIENT BACKGROUND (Spline-style) === */
.gradient-bg {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}
.gradient-bg .blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.18;
    animation: blobFloat 20s ease-in-out infinite;
}
[data-theme="dark"] .gradient-bg .blob { opacity: 0.12; }
.gradient-bg .blob-1 {
    width: 600px; height: 600px;
    background: radial-gradient(circle, #6DB9A6 0%, transparent 70%);
    top: -10%; left: -5%;
    animation-duration: 22s;
}
.gradient-bg .blob-2 {
    width: 500px; height: 500px;
    background: radial-gradient(circle, #4A90D9 0%, transparent 70%);
    top: 40%; right: -8%;
    animation-duration: 18s;
    animation-delay: -5s;
}
.gradient-bg .blob-3 {
    width: 450px; height: 450px;
    background: radial-gradient(circle, #5BA392 0%, transparent 70%);
    bottom: -5%; left: 30%;
    animation-duration: 25s;
    animation-delay: -10s;
}
.gradient-bg .blob-4 {
    width: 350px; height: 350px;
    background: radial-gradient(circle, #7ECC7B 0%, transparent 70%);
    top: 20%; left: 50%;
    animation-duration: 20s;
    animation-delay: -7s;
    opacity: 0.1;
}
@keyframes blobFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25%      { transform: translate(40px, -30px) scale(1.05); }
    50%      { transform: translate(-20px, 20px) scale(0.95); }
    75%      { transform: translate(30px, 40px) scale(1.02); }
}

/* Grain overlay for texture */
.gradient-bg::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    opacity: 0.4;
    pointer-events: none;
}

/* === HERO SECTION — Spline-inspired === */
.hero-section {
    padding: 6rem 0 5rem;
    min-height: 85vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

/* Ambient glow behind heading */
.hero-heading-wrap {
    position: relative;
    perspective: 800px;
}
.hero-heading-wrap::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 30%;
    transform: translate(-50%, -50%);
    width: 90%;
    height: 250%;
    background: radial-gradient(ellipse, rgba(109, 185, 166, 0.15) 0%, rgba(74, 144, 217, 0.08) 40%, transparent 70%);
    z-index: 0;
    pointer-events: none;
    animation: glowPulse 6s ease-in-out infinite;
}
@keyframes glowPulse {
    0%, 100% { opacity: 0.7; transform: translate(-50%, -50%) scale(1); }
    50%      { opacity: 1; transform: translate(-50%, -50%) scale(1.15); }
}

/* Massive gradient heading */
.hero-title {
    font-size: clamp(2.8rem, 5.5vw, 4.5rem);
    font-weight: 900;
    line-height: 1.0;
    letter-spacing: -0.05em;
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    background: linear-gradient(
        135deg,
        #5EECC1 0%, #6DB9A6 20%, #4A90D9 45%, #7ECC7B 65%, #6DB9A6 85%, #5EECC1 100%
    );
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 1;
    margin-bottom: 2rem;
    word-break: break-word;
    /* entrance */
    opacity: 0;
    transform: translateY(60px) scale(0.92);
    animation: heroTitleIn 1.2s cubic-bezier(0.22, 1, 0.36, 1) forwards 0.2s,
               gradientShimmer 6s ease infinite 1.4s;
    transition: filter 0.4s ease, transform 0.4s ease;
}
/* Glow halo on the text — visible after entrance */
.hero-title.revealed {
    filter: drop-shadow(0 0 60px rgba(109, 185, 166, 0.35))
            drop-shadow(0 4px 20px rgba(74, 144, 217, 0.2));
}
.hero-title:hover {
    filter: drop-shadow(0 0 80px rgba(109, 185, 166, 0.5))
            drop-shadow(0 4px 30px rgba(74, 144, 217, 0.3));
    transform: scale(1.02);
}

/* Outline/shadow duplicate for 3D depth */
.hero-title-shadow {
    position: absolute;
    top: 4px;
    left: 4px;
    font-size: clamp(2.8rem, 5.5vw, 4.5rem);
    font-weight: 900;
    line-height: 1.0;
    letter-spacing: -0.05em;
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    -webkit-text-stroke: 1px rgba(109, 185, 166, 0.12);
    -webkit-text-fill-color: transparent;
    z-index: 0;
    pointer-events: none;
    user-select: none;
    word-break: break-word;
    opacity: 0;
    animation: heroTitleIn 1.2s cubic-bezier(0.22, 1, 0.36, 1) forwards 0.3s;
}

@keyframes heroTitleIn {
    0% {
        opacity: 0;
        transform: translateY(60px) scale(0.92);
        filter: blur(12px);
    }
    60% {
        opacity: 1;
        filter: blur(2px);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0px);
    }
}
@keyframes gradientShimmer {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
@keyframes heroReveal {
    to { opacity: 1; transform: translateY(0); }
}

/* Page-level hero title (non-home pages) — smaller, simpler entrance */
.page-title {
    font-size: clamp(2rem, 4.5vw, 3.2rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.04em;
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    background: linear-gradient(
        135deg,
        #5EECC1 0%, #6DB9A6 30%, #4A90D9 60%, #7ECC7B 100%
    );
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    opacity: 0;
    transform: translateY(30px);
    animation: heroReveal 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards 0.1s,
               gradientShimmer 6s ease infinite 0.9s;
}

.hero-subtitle {
    font-size: clamp(1.05rem, 1.8vw, 1.3rem);
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 540px;
    margin-bottom: 2.5rem;
    word-wrap: break-word;
    opacity: 0;
    transform: translateY(30px);
    animation: heroReveal 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards 0.7s;
}

/* Hero buttons slide up */
.hero-section .d-flex {
    opacity: 0;
    transform: translateY(30px);
    animation: heroReveal 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards 1s;
}

/* Hero SVG float */
.hero-section .col-lg-6:last-child svg {
    opacity: 0;
    animation: heroReveal 1s cubic-bezier(0.22, 1, 0.36, 1) forwards 0.8s,
               heroFloat 6s ease-in-out infinite 1.8s;
}

/* === MACBOOK MOCKUP === */
.macbook-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    opacity: 0;
    animation: heroReveal 1.2s cubic-bezier(0.22, 1, 0.36, 1) forwards 0.6s;
}
.macbook {
    position: relative;
    width: 480px;
    perspective: 1200px;
}

/* --- Lid (screen half) --- */
.macbook-lid {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    background: #1a1a1e;
    border-radius: 14px 14px 0 0;
    border: 2px solid #2a2a30;
    border-bottom: none;
    overflow: hidden;
    transform-origin: bottom center;
    transform: rotateX(90deg);
    transition: transform 1.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow:
        0 -8px 40px rgba(102, 255, 204, 0.08),
        inset 0 0 0 1px rgba(255,255,255,0.04);
}
.macbook.opened .macbook-lid {
    transform: rotateX(0deg);
}

/* Screen area inside the lid */
.macbook-screen {
    position: absolute;
    top: 6%;
    left: 3.5%;
    width: 93%;
    height: 88%;
    border-radius: 6px;
    overflow: hidden;
    background: var(--bg-primary);
    transition: background 0.3s ease;
}

/* === Screen UI (fake dashboard) === */
.screen-ui {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    font-family: 'Inter', sans-serif;
    color: var(--text-primary);
    transition: color 0.3s ease;
}
/* Titlebar */
.screen-titlebar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 5px 8px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    transition: background 0.3s ease, border-color 0.3s ease;
}
.tb-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    flex-shrink: 0;
}
.tb-label {
    font-size: 5px;
    color: var(--text-muted);
    margin-left: 6px;
    font-weight: 500;
    letter-spacing: 0.3px;
}
/* Body */
.screen-body {
    flex: 1;
    padding: 6px 8px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
/* Header with logo — covers ~65% of screen */
.screen-header {
    flex: 1 1 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 0;
}
.screen-logo {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    object-fit: contain;
    flex-shrink: 0;
}
.sg-title {
    font-size: 12px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.15;
    letter-spacing: -0.02em;
}
.sg-sub {
    font-size: 6.5px;
    color: var(--text-muted);
    line-height: 1.3;
    margin-top: 1px;
}
/* Stat cards */
.screen-stats {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}
.sstat-card {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 4px 5px;
    overflow: hidden;
    opacity: 0;
    transform: translateY(1px);
    transition: background 0.3s ease, border-color 0.3s ease;
}
.macbook.opened .sstat-card {
    animation: screenCardIn 0.4s ease forwards;
}
.macbook.opened .sstat-1 { animation-delay: 1.2s; }
.macbook.opened .sstat-2 { animation-delay: 1.3s; }
.macbook.opened .sstat-3 { animation-delay: 1.4s; }

@keyframes screenCardIn {
    to { opacity: 1; transform: translateY(0); }
}

.sstat-icon {
    width: 9px;
    height: 9px;
    flex: 0 0 9px;
    color: var(--accent);
}
.sstat-icon svg {
    width: 9px;
    height: 9px;
    display: block;
    overflow: visible;
}
.sstat-info {
    min-width: 0;
}
.sstat-val {
    font-size: 6.5px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sstat-val small {
    font-size: 4px;
    font-weight: 500;
    color: var(--text-muted);
}
.sstat-lbl {
    font-size: 3.5px;
    color: var(--text-muted);
    margin-top: 1px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
/* Heartbeat chart */
.screen-chart {
    flex-shrink: 0;
    height: 22px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 3px 4px;
    overflow: hidden;
    opacity: 0;
    transform: translateY(1px);
    transition: background 0.3s ease, border-color 0.3s ease;
}
.macbook.opened .screen-chart {
    animation: screenCardIn 0.4s ease forwards 1.65s;
}
.heartbeat-svg {
    width: 100%;
    height: 100%;
    display: block;
}
.heartbeat-line {
    fill: none;
    stroke: var(--accent);
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 800;
    stroke-dashoffset: 800;
}
.macbook.opened .heartbeat-line {
    animation: drawLine 2s ease forwards 1.85s;
}
@keyframes drawLine {
    to { stroke-dashoffset: 0; }
}
/* Bottom pills */
.screen-pills {
    display: flex;
    gap: 3px;
    flex-shrink: 0;
    opacity: 0;
    transform: translateY(1px);
}
.macbook.opened .screen-pills {
    animation: screenCardIn 0.4s ease forwards 2.1s;
}
.spill {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    font-size: 4px;
    font-weight: 600;
    padding: 2px 5px;
    border-radius: 99px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    transition: background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}
.spill.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.spill svg { flex-shrink: 0; }

/* Notch / camera bump */
.macbook-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 8px;
    background: #1a1a1e;
    border-radius: 0 0 6px 6px;
    z-index: 2;
}
.macbook-notch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: #333;
    border-radius: 50%;
}

/* --- Base (keyboard half) --- */
.macbook-base {
    position: relative;
    width: 108%;
    margin-left: -4%;
    height: 12px;
    background: linear-gradient(180deg, #2a2a30 0%, #1a1a1e 100%);
    border-radius: 0 0 8px 8px;
    border: 2px solid #2a2a30;
    border-top: 1px solid #333;
}
.macbook-base::before {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 25%;
    height: 4px;
    background: #1a1a1e;
    border-radius: 0 0 4px 4px;
}

/* Ambient glow behind macbook */
.macbook-wrapper::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 55%;
    transform: translate(-50%, -50%);
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(102, 255, 204, 0.12), rgba(51, 153, 255, 0.06) 50%, transparent 70%);
    filter: blur(50px);
    z-index: -1;
    pointer-events: none;
    animation: glowPulse 6s ease-in-out infinite;
}

/* Subtle float after open */
.macbook.opened {
    animation: heroFloat 6s ease-in-out infinite 1.6s;
}

/* Dark mode adjustments */
[data-theme="dark"] .macbook-lid {
    box-shadow:
        0 -8px 50px rgba(102, 255, 204, 0.12),
        inset 0 0 0 1px rgba(255,255,255,0.06);
}
[data-theme="dark"] .macbook-wrapper::before {
    background: radial-gradient(circle, rgba(102, 255, 204, 0.15), rgba(51, 153, 255, 0.08) 50%, transparent 70%);
}
@keyframes heroFloat {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-14px); }
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%      { opacity: 0.5; transform: scale(1.5); }
}

/* Section reveal on scroll */
.section-title {
    opacity: 0;
    transform: translateY(20px);
    animation: heroReveal 0.6s ease forwards;
}

/* Feature cards staggered entrance */
.feature-card {
    opacity: 0;
    transform: translateY(30px);
    animation: heroReveal 0.6s ease forwards;
}
.col-md-6.col-lg-3:nth-child(1) .feature-card { animation-delay: 0.1s; }
.col-md-6.col-lg-3:nth-child(2) .feature-card { animation-delay: 0.2s; }
.col-md-6.col-lg-3:nth-child(3) .feature-card { animation-delay: 0.3s; }
.col-md-6.col-lg-3:nth-child(4) .feature-card { animation-delay: 0.4s; }

/* Stats counter entrance */
.stats-section .stat-number {
    opacity: 0;
    transform: translateY(20px);
    animation: heroReveal 0.6s ease forwards 0.3s;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .gradient-bg .blob { animation: none; }
    .hero-heading-wrap::before { animation: none; opacity: 0.7; }
    .hero-title, .hero-title-shadow, .hero-subtitle, .hero-section .d-flex,
    .hero-section svg, .feature-card, .section-title,
    .stats-section .stat-number {
        opacity: 1;
        transform: none;
        filter: none;
        animation: none;
    }
    .hero-title {
        animation: gradientShimmer 6s ease infinite;
        filter: drop-shadow(0 0 60px rgba(109, 185, 166, 0.35));
    }
}

/* === FEATURE CARDS (home) === */
.feature-card {
    text-align: center;
    padding: 2rem 1.5rem;
    color: var(--text-primary);
}
.feature-card .card-body,
.feature-card h5,
.feature-card h6 {
    color: var(--text-primary);
}
.feature-card p,
.feature-card .text-muted {
    color: var(--text-secondary) !important;
}
.feature-icon-circle {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--accent-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    font-size: 1.75rem;
    color: var(--accent);
    transition: var(--transition-slow);
}
.card:hover .feature-icon-circle {
    background: var(--accent);
    color: #fff;
    transform: scale(1.05);
}

/* === STATS SECTION === */
.stats-section {
    background: var(--accent-bg);
    border-radius: var(--radius-xl);
    padding: 3rem 2rem;
}
.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent);
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    letter-spacing: -0.03em;
}
.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* === AUTH PAGES (login/signup etc) === */
.auth-card {
    max-width: 460px;
    margin: 3rem auto;
}
.auth-card .card {
    border-top: 3px solid var(--accent);
}
.auth-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    background: var(--accent-bg);
    border: 2px solid var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
}
.auth-icon svg { stroke: var(--accent); }

.auth-links { margin-top: 1rem; }
.auth-links a { color: var(--accent); font-weight: 600; }
.auth-links .divider { margin: 0 0.5rem; color: var(--text-muted); }

/* Password requirements */
.pw-requirements {
    background: var(--accent-bg);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--accent);
    padding: 1rem;
    margin-top: 0.75rem;
}
.pw-requirements .req-label {
    font-weight: 600;
    color: var(--accent);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}
.req-icon { font-weight: 700; margin-right: 0.4rem; }
.req-met { color: var(--success-color) !important; }
.req-unmet { color: var(--danger-color) !important; }

/* === PROFILE === */
.profile-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--accent-bg);
    border: 3px solid var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}
.profile-avatar svg { stroke: var(--accent); }

/* === MEDICAL CARD === */
.medical-section-header {
    background: var(--accent-bg) !important;
    color: var(--accent) !important;
    font-weight: 600;
}

/* === GENERAL UTILITIES === */
.text-accent { color: var(--accent) !important; }
.bg-accent-soft { background: var(--accent-bg) !important; }
.border-accent { border-color: var(--accent) !important; }

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

.section-title {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
}
.section-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

/* Smooth scrolling */
html { scroll-behavior: smooth; }

/* === RESPONSIVE === */
@media (max-width: 991px) {
    /* Navbar pill becomes full-width card on tablet/mobile */
    .navbar-container {
        border-radius: var(--radius-lg) !important;
        padding: 0.5rem 0.75rem !important;
        max-width: 95% !important;
        width: 95% !important;
        flex-wrap: wrap;
    }
    .navbar-collapse {
        width: 100%;
    }
    .navbar-nav {
        flex-direction: column;
        align-items: stretch;
        gap: 0.15rem;
        padding: 0.5rem 0;
    }
    .navbar .nav-link {
        border-radius: var(--radius-sm);
        padding: 0.5rem 0.85rem !important;
    }
    .navbar .nav-link.active {
        background: var(--accent-bg);
        color: var(--accent) !important;
    }
    .navbar-controls {
        margin-top: 0.5rem;
        padding-top: 0.5rem;
        border-top: 1px solid var(--border-color);
        width: 100%;
        justify-content: center;
    }
}
@media (max-width: 991px) {
    .macbook { width: 360px; }
}
@media (max-width: 768px) {
    .hero-section { min-height: 70vh; padding: 4rem 0 3rem; }
    .hero-title { font-size: clamp(2.2rem, 8vw, 3rem); }
    .hero-subtitle { font-size: 1rem; }
    .dash-grid { grid-template-columns: 1fr; }
    .stat-number { font-size: 2rem; }
    .navbar-controls { margin-top: 0.75rem; }
    .lang-switcher { margin-left: 0; }
    .macbook { width: 280px; }
}

@media (max-width: 576px) {
    .hero-section { min-height: 60vh; padding: 3rem 0 2rem; }
    .auth-card { margin: 1.5rem auto; }
    .site-footer { padding: 2rem 0 1rem; }
}

/* === ANIMATIONS === */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn 0.4s ease-out; }

/* === PHARMACY PAGE === */
.pharmacy-search-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}
.letter-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}
.letter-btn:hover, .letter-btn.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
.category-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.4rem 0.9rem;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}
.category-chip:hover, .category-chip.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* === ASSISTANT CHAT === */
.chat-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.chat-messages {
    max-height: 500px;
    overflow-y: auto;
    padding: 1rem;
}
.chat-bubble {
    max-width: 80%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    line-height: 1.6;
}
.chat-bubble.user {
    background: var(--accent);
    color: #fff;
    margin-left: auto;
    border-bottom-right-radius: 4px;
}
.chat-bubble.assistant {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
}
.chat-input-area {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 0.75rem;
}
.chat-input-area input {
    flex: 1;
}

/* === MESSAGE BUBBLES (assistant page) === */
.message-row { display: flex; margin-bottom: 0.75rem; }
.message-row.user { justify-content: flex-end; }
.message-row.assistant { justify-content: flex-start; }
.message-bubble {
    max-width: 80%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    line-height: 1.6;
}
.user-message {
    background: var(--accent);
    color: #fff;
    border-bottom-right-radius: 4px;
}
.assistant-message {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
}

/* === 3D ANATOMY VIEWER === */
.anatomy-controls {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

/* === PAGE HEADER (legacy support) === */
.page-header {
    padding: 1.5rem 0;
    margin-bottom: 1rem;
}
.page-header h1 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-primary);
}
.page-header .lead {
    color: var(--text-secondary);
}

/* === SCROLLBAR === */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* === TABLE STYLES === */
.table-responsive {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}
.table {
    background: var(--bg-card);
    color: var(--text-primary);
    margin-bottom: 0;
}
.table thead th {
    background: var(--bg-card-hover);
    color: var(--text-secondary);
    border-color: var(--border-color);
    font-weight: 600;
}
.table tbody td {
    border-color: var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
}
.table tbody tr:hover td {
    background: var(--bg-card-hover);
}

/* === OTP INPUT === */
.otp-input {
    letter-spacing: 12px;
    font-size: 28px;
    font-weight: 700;
    color: var(--accent) !important;
    text-align: center;
}

/* === SHADOW CLASSES === */
.shadow-sm {
    box-shadow: var(--card-shadow) !important;
}
.shadow {
    box-shadow: var(--card-shadow-hover) !important;
}

/* === MODAL (dark mode support) === */
.modal {
    --bs-modal-bg: var(--bg-card);
    --bs-modal-backdrop-bg: rgba(0,0,0,0.5);
}
.modal-content {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
}
.modal-header {
    border-bottom: 1px solid var(--border-color) !important;
    color: var(--text-primary);
}
.modal-title {
    color: var(--text-primary) !important;
    font-weight: 600;
}
.modal-body .btn {
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: var(--transition);
}
.modal-body .btn:hover {
    transform: translateY(-2px);
}

/* === LANGUAGE DROPDOWN === */
.dropdown .dropdown-menu {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--card-shadow-hover);
    padding: 0.5rem;
}
.dropdown-menu .dropdown-item {
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: var(--transition);
}
.dropdown-menu .dropdown-item:hover {
    background: var(--accent-bg);
    color: var(--accent);
}
.dropdown-menu .dropdown-item.active {
    background: var(--accent-bg);
    color: var(--accent);
    font-weight: 700;
}

/* === CONTAINER CONTROL === */
.container-expanded { max-width: 95% !important; }
.sidebar-toggle-btn {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 1.1rem;
    cursor: pointer;
    box-shadow: var(--card-shadow);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.sidebar-toggle-btn:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}