:root {
    --msc-gold: #D9A441;
    --msc-gold-dark: #b38531;
    --msc-gold-light: #f0d48a;
    --msc-gold-glow: rgba(217, 164, 65, 0.3);
    --msc-indigo: #5A61E3;
    --msc-indigo-light: #8b90f0;
    --msc-indigo-dark: #3f44b0;
    --msc-indigo-glow: rgba(90, 97, 227, 0.3);

    --msc-dark: #0f172a;
    --msc-dark-surface: #1e293b;
    --msc-dark-card: #1e293b;
    --msc-dark-border: rgba(255, 255, 255, 0.1);

    --msc-light-bg: #f8f9fc;
    --msc-light-surface: #ffffff;
    --msc-light-border: #e2e8f0;

    --msc-text-white: #ffffff;
    --msc-text-white-muted: rgba(255, 255, 255, 0.6);
    --msc-text-dark: #1e293b;
    --msc-text-dark-muted: #64748b;

    --msc-radius-sm: 8px;
    --msc-radius-md: 14px;
    --msc-radius-lg: 18px;
    --msc-radius-xl: 24px;
    --msc-radius-full: 9999px;

    --msc-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --msc-shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
    --msc-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --msc-shadow-gold: 0 4px 24px rgba(217, 164, 65, 0.25);
    --msc-shadow-indigo: 0 4px 24px rgba(90, 97, 227, 0.25);

    --msc-ease: cubic-bezier(0.4, 0, 0.2, 1);
    --msc-ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --msc-duration: 300ms;
}

* {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::selection {
    background: rgba(90, 97, 227, 0.2);
    color: inherit;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(100, 116, 139, 0.3); border-radius: var(--msc-radius-full); }
::-webkit-scrollbar-thumb:hover { background: rgba(100, 116, 139, 0.5); }

@keyframes mscFadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes mscFloatSlow {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-20px) scale(1.05); }
}

@keyframes mscFloatMedium {
    0%, 100% { transform: translateY(0) translateX(0) scale(1); }
    50% { transform: translateY(-15px) translateX(10px) scale(1.02); }
}

@keyframes mscShimmer {
    0% { transform: translateX(-100%) skewX(-20deg); }
    100% { transform: translateX(200%) skewX(-20deg); }
}

.msc-btn-gold {
    background: linear-gradient(135deg, var(--msc-gold), var(--msc-gold-dark));
    color: white;
    border: none;
    border-radius: var(--msc-radius-md);
    padding: 0.65rem 1.5rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    box-shadow: var(--msc-shadow-gold);
    transition: all var(--msc-duration) var(--msc-ease);
    cursor: pointer;
}

.msc-btn-gold:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 28px rgba(217, 164, 65, 0.35);
    color: white;
}

.msc-btn-gold:active {
    transform: translateY(0);
}

.msc-btn-indigo {
    background: linear-gradient(135deg, var(--msc-indigo), var(--msc-indigo-dark));
    color: white;
    border: none;
    border-radius: var(--msc-radius-md);
    padding: 0.65rem 1.5rem;
    font-weight: 500;
    box-shadow: var(--msc-shadow-indigo);
    transition: all var(--msc-duration) var(--msc-ease);
    cursor: pointer;
}

.msc-btn-indigo:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 28px rgba(90, 97, 227, 0.35);
    color: white;
}

.msc-glass {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.msc-glass:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
}

.msc-navbar {
    background: linear-gradient(135deg, var(--msc-dark) 0%, #1a1f3a 100%) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.2);
}

.msc-navbar .navbar-brand {
    color: var(--msc-text-white) !important;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.msc-navbar .nav-link {
    color: var(--msc-text-white-muted) !important;
    transition: color var(--msc-duration) var(--msc-ease);
}

.msc-navbar .nav-link:hover {
    color: var(--msc-gold) !important;
}

/* ── Safe-area / notch support (iPhone X+, Dynamic Island, Android nav bar) ── */
:root {
    --safe-top: env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
    --safe-left: env(safe-area-inset-left, 0px);
    --safe-right: env(safe-area-inset-right, 0px);
}

/* Push page content clear of the status bar when installed as PWA */
body {
    padding-top: env(safe-area-inset-top, 0px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
    padding-left: env(safe-area-inset-left, 0px);
    padding-right: env(safe-area-inset-right, 0px);
}

/* Fixed/sticky headers should sit below the status bar */
.navbar,
.msc-navbar,
.chat-header,
.admin-header,
.dash-header {
    padding-top: calc(0.75rem + env(safe-area-inset-top, 0px));
}

/* Fixed bottom bars / input areas clear the home indicator */
.chat-input-area,
.bottom-bar,
.fixed-bottom {
    padding-bottom: calc(0.75rem + env(safe-area-inset-bottom, 0px));
}

/* Scrollable containers — prevent content hiding behind home indicator */
.chat-messages,
.messages-container {
    padding-bottom: calc(1rem + env(safe-area-inset-bottom, 0px));
}

@media (display-mode: standalone) {
    /* Extra top space only when running as installed PWA */
    body {
        background-color: #0f172a;
    }
}