/* ─── Global Reset & Design Tokens ─────────────────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap");

:root {
    /* ─── Light Mode (Default) ─── */
    --bg-page: #ffffff;
    --bg-surface: #ffffff;
    --bg-surface-hover: #f5f5f5;
    --bg-surface-alt: #fafafa;
    --bg-overlay: rgba(0, 0, 0, 0.5);

    --primary-rgb: 0, 112, 243;
    --primary: rgb(var(--primary-rgb));
    --primary-hover: #0061d5;

    --accent-rgb: 108, 99, 255;
    --accent: rgb(var(--accent-rgb));
    --accent-light: #8b84ff;
    --accent-dim: rgba(var(--accent-rgb), 0.15);

    --text-primary: #111111;
    --text-secondary: #666666;
    --text-muted: #888888;
    --text-inverse: #ffffff;
    --text-on-primary: #ffffff;

    --border-default: #eaeaea;

    --state-success: #0070f3;
    --state-error: #e00;
    --state-warning: #f5a623;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-pill: 99px;

    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08); /* Lighter shadow for light mode */
    --shadow-lg: 0 10px 30px -5px rgba(0, 0, 0, 0.05);
    --shadow-primary: 0 4px 14px 0 rgba(var(--primary-rgb), 0.39);

    --font: "Inter", system-ui, sans-serif;
    --transition: 150ms ease;
}

/* ─── Dark Mode Override ─── */
html.dark {
    --bg-page: #0f1117;
    --bg-surface: #1a1d27;
    --bg-surface-hover: #22263a;
    --bg-surface-alt: #161922;

    --text-primary: #e8eaf6;
    --text-secondary: #8891b0;
    --text-muted: #4e5570;
    --text-inverse: #111111;

    --border-default: rgba(255, 255, 255, 0.07);

    --state-success: #4caf88;
    --state-error: #f25656;
    --state-warning: #f5a623;

    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4); /* Stronger shadow for dark mode */
    --shadow-lg: 0 10px 30px -5px rgba(0, 0, 0, 0.3);
    --shadow-primary: 0 4px 14px 0 rgba(var(--primary-rgb), 0.5);
}

html,
body {
    height: 100%;
    background: var(--bg-page);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* ─── Scrollbar ──────────────────────────────────────────────────────────────── */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 99px;
}

/* ─── Utility ────────────────────────────────────────────────────────────────── */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}
.flex {
    display: flex;
}
.flex-col {
    flex-direction: column;
}
.items-center {
    align-items: center;
}
.justify-center {
    justify-content: center;
}
.justify-between {
    justify-content: space-between;
}
.gap-2 {
    gap: 0.5rem;
}
.gap-4 {
    gap: 1rem;
}
.gap-6 {
    gap: 1.5rem;
}
.w-full {
    width: 100%;
}
.h-full {
    height: 100%;
}
.flex-1 {
    flex: 1;
}
.text-sm {
    font-size: 0.875rem;
}
.text-xs {
    font-size: 0.75rem;
}
.font-semibold {
    font-weight: 600;
}
.font-bold {
    font-weight: 700;
}
.text-muted {
    color: var(--text-secondary);
}
.text-center {
    text-align: center;
}
.text-right {
    text-align: right;
}
.grid {
    display: grid;
}
.grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
}
.grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}
.gap-8 {
    gap: 2rem;
}
.px-4 {
    padding-left: 1rem;
    padding-right: 1rem;
}
.py-12 {
    padding-top: 3rem;
    padding-bottom: 3rem;
}
.py-20 {
    padding-top: 5rem;
    padding-bottom: 5rem;
}
.mt-4 {
    margin-top: 1rem;
}
.mt-8 {
    margin-top: 2rem;
}
.mb-2 {
    margin-bottom: 0.5rem;
}
.mb-4 {
    margin-bottom: 1rem;
}
.mb-8 {
    margin-bottom: 2rem;
}
.mx-auto {
    margin-left: auto;
    margin-right: auto;
}
.relative {
    position: relative;
}
.absolute {
    position: absolute;
}
.inset-0 {
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}
.object-contain {
    object-fit: contain;
}
.min-h-screen {
    min-height: 100vh;
}
.overflow-hidden {
    overflow: hidden;
}

@media (min-width: 768px) {
    .md-grid-cols-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .md-grid-cols-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (min-width: 1024px) {
    .lg-grid-cols-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

/* ─── Button ──────────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition);
    text-decoration: none;
    user-select: none;
}
.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(108, 99, 255, 0.4);
}
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-default);
}
.btn-ghost:hover {
    background: var(--bg-surface-hover);
    color: var(--text-primary);
}
.btn-danger {
    background: rgba(242, 86, 86, 0.15);
    color: var(--state-error);
    border: 1px solid rgba(242, 86, 86, 0.3);
}
.btn-danger:hover {
    background: rgba(242, 86, 86, 0.25);
}
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ─── Input ───────────────────────────────────────────────────────────────────── */
.input {
    width: 100%;
    padding: 0.7rem 1rem;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-default);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.9rem;
    transition:
        border-color var(--transition),
        box-shadow var(--transition);
    outline: none;
}
.input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-dim);
}
.input::placeholder {
    color: var(--text-muted);
}

/* ─── Card ────────────────────────────────────────────────────────────────────── */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    padding: 1.5rem;
}

/* ─── Badge ───────────────────────────────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    border-radius: 99px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-success {
    background: rgba(76, 175, 136, 0.15);
    color: var(--state-success);
}
.badge-accent {
    background: var(--accent-dim);
    color: var(--accent-light);
}

/* ─── App Layout ──────────────────────────────────────────────────────────────── */
.app-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    height: 100vh;
    overflow: hidden;
}
.sidebar {
    background: var(--bg-surface);
    border-right: 1px solid var(--border-default);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.sidebar-header {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid var(--border-default);
}
.sidebar-logo {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent-light);
    letter-spacing: -0.02em;
}
.sidebar-logo span {
    color: var(--text-muted);
    font-weight: 400;
}
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}
.sidebar-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    width: 100%;
    padding: 0.6rem 0.75rem;
    margin-bottom: 0.25rem;
    border-radius: var(--radius-sm);
    border: none;
    background: transparent;
    text-align: left;
    font-family: var(--font);
    cursor: pointer;
    transition:
        background var(--transition),
        color var(--transition);
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.sidebar-item:hover,
.sidebar-item.active {
    background: var(--bg-surface-hover);
    color: var(--text-primary);
}
.sidebar-item.active {
    color: var(--accent-light);
}
.sidebar-section-label {
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 1rem 0.75rem 0.25rem;
}

/* ─── Chat Layout ─────────────────────────────────────────────────────────────── */
.chat-main {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}
.chat-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-default);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(26, 29, 39, 0.8);
    backdrop-filter: blur(10px);
}
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.chat-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-default);
}

/* ─── Message Bubble ──────────────────────────────────────────────────────────── */
.message {
    display: flex;
    gap: 0.75rem;
    animation: fadeSlideIn 0.2s ease;
}
.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #a78bfa);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    color: #fff;
    flex-shrink: 0;
}
.message-body {
    flex: 1;
}
.message-meta {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}
.message-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--accent-light);
}
.message-time {
    font-size: 0.72rem;
    color: var(--text-muted);
}
.message-text {
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 0.9rem;
}

/* ─── Chat Input ──────────────────────────────────────────────────────────────── */
.chat-input-wrapper {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    padding: 0.5rem 0.75rem;
    transition: border-color var(--transition);
}
.chat-input-wrapper:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-dim);
}
.chat-textarea {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.9rem;
    line-height: 1.5;
    resize: none;
    outline: none;
    max-height: 120px;
    overflow-y: auto;
}
.chat-textarea::placeholder {
    color: var(--text-muted);
}

/* ─── Auth Page ───────────────────────────────────────────────────────────────── */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
        radial-gradient(
            ellipse at 60% 0%,
            rgba(108, 99, 255, 0.15) 0%,
            transparent 60%
        ),
        var(--bg-page);
}
.auth-card {
    width: 100%;
    max-width: 420px;
    padding: 2.5rem;
}
.auth-logo {
    text-align: center;
    margin-bottom: 2rem;
}
.auth-logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-light), #c084fc);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.auth-logo p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}
.form-group {
    margin-bottom: 1rem;
}
.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}
.form-error {
    color: var(--state-error);
    font-size: 0.8rem;
    margin-top: 0.25rem;
}
.auth-switch {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 1.5rem;
}
.auth-switch a {
    color: var(--accent-light);
    text-decoration: none;
    font-weight: 500;
}
.auth-switch a:hover {
    text-decoration: underline;
}

/* ─── Animations ──────────────────────────────────────────────────────────────── */
@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}
.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

/* ─── Online indicator ────────────────────────────────────────────────────────── */
.online-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--state-success);
    display: inline-block;
    box-shadow: 0 0 0 2px rgba(76, 175, 136, 0.3);
}

@media (max-width: 767px) {
    .container {
        padding: 0 1rem;
    }
}

/* ─── CMS Layout ─────────────────────────────────────────────────────────────── */
.cms-layout {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.cms-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
    padding: 0 1.5rem;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-default);
    position: sticky;
    top: 0;
    z-index: 40;
}

.cms-header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.cms-mobile-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    margin-left: -0.5rem;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition);
}

.cms-mobile-menu-btn:hover {
    background: var(--bg-surface-hover);
}

.cms-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.cms-breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition);
}

.cms-breadcrumb a:hover {
    color: var(--primary);
}

.cms-breadcrumb-sep {
    color: var(--border-default);
}

.cms-breadcrumb-current {
    color: var(--primary);
}

.cms-user-avatar {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 50%;
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-default);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: transform var(--transition);
}

.cms-user-avatar:hover {
    transform: scale(1.05);
}

.cms-body {
    flex: 1;
    display: flex;
    overflow: hidden;
}

.cms-sidebar {
    width: 16rem;
    flex-shrink: 0;
    background: var(--bg-surface);
    border-right: 1px solid var(--border-default);
    padding: 1rem;
    overflow-y: auto;
}

.cms-main {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    background: var(--bg-surface-alt);
}

.cms-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 40;
    backdrop-filter: blur(4px);
}

@media (max-width: 767px) {
    .cms-mobile-menu-btn {
        display: flex;
    }
    .cms-sidebar {
        position: fixed;
        top: 0;
        bottom: 0;
        left: 0;
        z-index: 50;
        transform: translateX(-100%);
        transition: transform 0.3s ease-in-out;
        box-shadow: var(--shadow-lg);
    }
    .cms-sidebar.open {
        transform: translateX(0);
    }
    .cms-overlay.open {
        display: block;
    }
    .cms-main {
        padding: 1rem;
    }
}

/* ─── CMS Shared ─────────────────────────────────────────────────────────────── */

/* Sidebar group — wraps a label + set of sidebar items */
.sidebar-group {
    margin-bottom: 0.5rem;
}

/* Form card header (title + description) reused in all account forms */
.form-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-default);
}

.form-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

/* Success notice (complements the existing .form-error) */
.form-success {
    padding: 0.65rem 1rem;
    border-radius: var(--radius-sm);
    background: rgba(76, 175, 136, 0.12);
    border: 1px solid rgba(76, 175, 136, 0.3);
    color: var(--state-success);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

/* Override .form-error to add spacing when used inside a card */
.card .form-error {
    padding: 0.65rem 1rem;
    border-radius: var(--radius-sm);
    background: rgba(224, 0, 0, 0.08);
    border: 1px solid rgba(224, 0, 0, 0.25);
    margin-bottom: 1rem;
    margin-top: 0;
}

/* .form-control — alias for .input, for consistent Bootstrap-style naming */
.form-control {
    width: 100%;
    padding: 0.7rem 1rem;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-default);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.9rem;
    transition:
        border-color var(--transition),
        box-shadow var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-control::placeholder {
    color: var(--text-muted);
}

/* .form-select — select element variant of .form-control */
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.9rem center;
    padding-right: 2.5rem;
    cursor: pointer;
}

/* Form action buttons row */
.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 2rem;
}

/* Multi-column form rows */
.form-row {
    display: grid;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-row-2 {
    grid-template-columns: repeat(2, 1fr);
}

.form-row-3 {
    grid-template-columns: repeat(3, 1fr);
}

/* Inside a form-row the child form-group has no bottom margin (row handles it) */
.form-row > .form-group {
    margin-bottom: 0;
}

@media (max-width: 640px) {
    .form-row-2,
    .form-row-3 {
        grid-template-columns: 1fr;
    }
}