/* ================================================================
   Autonomize AI Academy — Brand CSS
   ================================================================ */

/* --- CSS Custom Properties (Brand Tokens) --- */
:root {
    --color-primary: #731EE3;
    --color-primary-dark: #5B3BAD;
    --color-primary-deepest: #2F095B;
    --color-accent-coral: #E46962;
    --color-bg-page: #FBF9FF;
    --color-bg-card: #ECE0FC;
    --color-bg-dark: #16212C;
    --color-text-primary: #191919;
    --color-text-secondary: #5E5E5E;
    --color-white: #FFFFFF;
    --color-border: #ECE0FC;
    --color-success: #158158;
    --font-family: "Helvetica Neue", Arial, sans-serif;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --sidebar-width: 260px;
    --topbar-height: 56px;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-family);
    color: var(--color-text-primary);
    background: var(--color-bg-page);
    line-height: 1.6;
}

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

a:hover {
    text-decoration: underline;
}

/* --- App Shell Layout --- */
.app-shell {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--topbar-height);
    padding: 0 24px;
    background: var(--color-primary-deepest);
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    font-size: 0.8125rem;
    line-height: 1.3;
}

.user-name {
    font-weight: 600;
}

.user-dept {
    opacity: 0.7;
    font-size: 0.75rem;
}

.btn-logout {
    color: var(--color-white);
    opacity: 0.8;
    font-size: 0.8125rem;
    padding: 4px 12px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-sm);
    transition: opacity 0.15s;
}

.btn-logout:hover {
    opacity: 1;
    text-decoration: none;
}

.app-body {
    display: flex;
    flex: 1;
}

/* --- Sidebar Navigation --- */
.sidebar {
    width: var(--sidebar-width);
    min-height: calc(100vh - var(--topbar-height));
    padding: 24px 16px;
    background: var(--color-white);
    border-right: 1px solid var(--color-border);
    overflow-y: auto;
}

.sidebar-module {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    margin-bottom: 4px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: background 0.15s;
}

.sidebar-module:hover {
    background: var(--color-bg-card);
    text-decoration: none;
}

.sidebar-module.active {
    background: var(--color-bg-card);
    font-weight: 600;
    color: var(--color-primary);
}

.sidebar-module.completed {
    color: var(--color-success);
}

.sidebar-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    flex-shrink: 0;
}

/* --- Main Content --- */
.content {
    flex: 1;
    padding: 32px 40px;
    max-width: 880px;
}

.content h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary-deepest);
    margin-bottom: 8px;
}

.content h2 {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-top: 32px;
    margin-bottom: 12px;
}

.content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 24px;
    margin-bottom: 8px;
}

.content p {
    margin-bottom: 16px;
}

.content ul, .content ol {
    margin-bottom: 16px;
    padding-left: 24px;
}

.content li {
    margin-bottom: 6px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    font-size: 0.9375rem;
    font-weight: 600;
    font-family: var(--font-family);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.15s, transform 0.1s;
}

.btn:hover {
    text-decoration: none;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
}

.btn-secondary {
    background: var(--color-bg-card);
    color: var(--color-primary-dark);
}

.btn-secondary:hover {
    background: #ddd0f5;
}

.btn-success {
    background: var(--color-success);
    color: var(--color-white);
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* --- Cards --- */
.card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.card-header {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--color-primary-deepest);
}

/* --- Callout Boxes --- */
.callout {
    border-left: 4px solid var(--color-primary);
    background: var(--color-bg-card);
    padding: 16px 20px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin-bottom: 20px;
    font-size: 0.9375rem;
}

.callout-warning {
    border-left-color: var(--color-accent-coral);
    background: #fdf0ef;
}

.callout-success {
    border-left-color: var(--color-success);
    background: #edf7f1;
}

.callout-title {
    font-weight: 700;
    margin-bottom: 4px;
}

/* --- Alerts --- */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.alert-error {
    background: #fdf0ef;
    color: #b8352e;
    border: 1px solid #f5c6c3;
}

.alert-success {
    background: #edf7f1;
    color: var(--color-success);
    border: 1px solid #b8e0cc;
}

/* --- Quiz Blocks --- */
.quiz-block {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    margin: 24px 0;
}

.quiz-block .question {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 16px;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.quiz-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    font-size: 0.9375rem;
}

.quiz-option:hover {
    background: var(--color-bg-card);
}

.quiz-option.selected {
    border-color: var(--color-primary);
    background: var(--color-bg-card);
}

.quiz-option.correct {
    border-color: var(--color-success);
    background: #edf7f1;
}

.quiz-option.incorrect {
    border-color: var(--color-accent-coral);
    background: #fdf0ef;
}

.quiz-feedback {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-top: 12px;
    font-size: 0.9rem;
}

/* --- Prompt Lab --- */
.prompt-lab {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    margin: 24px 0;
}

.prompt-lab-title {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-primary-deepest);
    margin-bottom: 8px;
}

.prompt-lab-scenario {
    background: var(--color-bg-card);
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 0.9375rem;
}

.prompt-textarea {
    width: 100%;
    min-height: 120px;
    padding: 12px 14px;
    font-family: var(--font-family);
    font-size: 0.9375rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    resize: vertical;
    transition: border-color 0.15s;
}

.prompt-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(115, 30, 227, 0.12);
}

.prompt-response {
    background: #f8f6fb;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-top: 16px;
    font-size: 0.9375rem;
    white-space: pre-wrap;
}

.score-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 600;
}

.score-badge.high {
    background: #edf7f1;
    color: var(--color-success);
}

.score-badge.medium {
    background: #fff8e6;
    color: #946800;
}

.score-badge.low {
    background: #fdf0ef;
    color: #b8352e;
}

/* --- PHI Classifier --- */
.phi-classifier {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    margin: 24px 0;
}

.phi-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    font-size: 0.9375rem;
}

.phi-tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.phi-tag.phi {
    background: #fdf0ef;
    color: #b8352e;
}

.phi-tag.safe {
    background: #edf7f1;
    color: var(--color-success);
}

/* --- Progress Bar --- */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--color-bg-card);
    border-radius: 999px;
    overflow: hidden;
    margin: 8px 0;
}

.progress-bar-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: 999px;
    transition: width 0.4s ease;
}

.progress-text {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

/* --- Module Navigation --- */
.module-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

/* --- Login Page --- */
.login-page {
    background: linear-gradient(135deg, var(--color-primary-deepest) 0%, var(--color-primary-dark) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 24px;
}

.login-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    box-shadow: var(--shadow-md);
    text-align: center;
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary-deepest);
    margin-bottom: 8px;
}

.login-subtitle {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    margin-bottom: 32px;
}

/* --- HTMX Indicators --- */
.htmx-indicator {
    display: none;
}

.htmx-request .htmx-indicator {
    display: inline-block;
}

.htmx-request.htmx-indicator {
    display: inline-block;
}

.spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.htmx-settling {
    opacity: 1;
    transition: opacity 0.2s ease-in;
}

/* --- Footer --- */
.footer {
    text-align: center;
    padding: 16px 24px;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    border-top: 1px solid var(--color-border);
    background: var(--color-white);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .sidebar {
        display: none;
    }

    .content {
        padding: 24px 16px;
    }

    .login-card {
        padding: 32px 24px;
    }
}