/* ============================================================
   Daani AIOS Tutor -- ForeShiloh Ltd
   Light educational theme with gold + green accents
   ============================================================ */

/* --- CSS Variables --- */
:root {
    --color-primary: #D4A843;
    --color-primary-light: #F5EACC;
    --color-primary-dark: #B8912F;
    --color-accent: #2D8F4E;
    --color-accent-light: #E8F5EC;
    --color-error: #C0392B;
    --color-error-light: #FDEDED;
    --color-bg: #FFFFFF;
    --color-bg-warm: #F8F7F4;
    --color-bg-hover: #F1F0EC;
    --color-text: #1A1A1A;
    --color-text-secondary: #5A5A5A;
    --color-text-muted: #8A8A8A;
    --color-border: #E4E2DD;
    --color-border-light: #EEEDE9;
    --color-code-bg: #1E1E1E;
    --color-code-text: #D4D4D4;
    --sidebar-width: 260px;
    --content-max-width: 960px;
    --chat-max-width: 780px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Julius Sans One', 'Inter', sans-serif;
    --z-sidebar: 100;
    --z-overlay: 90;
    --z-mobile-header: 80;
    --z-chat-input: 50;
    --z-toast: 200;
}

/* RTL direction overrides */
[dir="rtl"] {
    --sidebar-margin-side: margin-right;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: 0.02em;
}

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

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

img {
    max-width: 100%;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, select, textarea {
    font-family: inherit;
    font-size: 0.9375rem;
}

.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border-width: 0;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

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

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

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

.btn-secondary:hover {
    background: var(--color-bg-hover);
}

.btn-accent {
    background: var(--color-accent);
    color: #FFFFFF;
}

.btn-accent:hover {
    background: #247A40;
}

.btn-full {
    width: 100%;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.8125rem;
}

/* --- Form Elements --- */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-block-end: 16px;
}

.form-group label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

.form-row {
    display: flex;
    gap: 16px;
}

.form-row .form-group {
    flex: 1;
}

.form-error {
    padding: 10px 14px;
    background: var(--color-error-light);
    color: var(--color-error);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    margin-block-end: 12px;
}

.form-success {
    padding: 10px 14px;
    background: var(--color-accent-light);
    color: var(--color-accent);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    margin-block-end: 12px;
}

/* --- Auth Screen --- */
#auth-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-warm);
    padding: 24px;
}

.auth-container {
    width: 100%;
    max-width: 440px;
}

.auth-logo {
    text-align: center;
    margin-block-end: 32px;
}

.auth-logo-text {
    display: block;
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-primary-dark);
    letter-spacing: 0.04em;
}

.auth-tagline {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-block-start: 4px;
}

.auth-form {
    background: var(--color-bg);
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.auth-title {
    font-size: 1.5rem;
    margin-block-end: 6px;
    color: var(--color-text);
}

.auth-subtitle {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-block-end: 24px;
}

.auth-switch {
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-block-start: 16px;
}

.auth-switch a {
    font-weight: 500;
}

.auth-language-bar {
    display: flex;
    justify-content: center;
    margin-block-start: 24px;
}

.auth-language-bar select {
    padding: 6px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    color: var(--color-text-secondary);
    font-size: 0.8125rem;
    cursor: pointer;
}

/* --- Sidebar --- */
#sidebar {
    position: fixed;
    inset-block-start: 0;
    inset-inline-start: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--color-bg);
    border-inline-end: 1px solid var(--color-border-light);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    z-index: var(--z-sidebar);
    transition: transform var(--transition-normal);
}

.sidebar-top {
    padding: 24px 16px 16px;
}

.sidebar-logo {
    padding: 0 8px 20px;
    border-block-end: 1px solid var(--color-border-light);
    margin-block-end: 16px;
}

.sidebar-logo-text {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.375rem;
    color: var(--color-primary-dark);
    letter-spacing: 0.04em;
}

.sidebar-logo-sub {
    display: block;
    font-size: 0.6875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-block-start: 2px;
}

.sidebar-nav {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    font-weight: 400;
    transition: all var(--transition-fast);
}

.nav-item:hover {
    background: var(--color-bg-warm);
    color: var(--color-text);
}

.nav-item.active {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.nav-item.active .nav-icon {
    stroke: var(--color-primary-dark);
}

.nav-icon {
    flex-shrink: 0;
    stroke: var(--color-text-muted);
    transition: stroke var(--transition-fast);
}

.nav-item:hover .nav-icon {
    stroke: var(--color-text-secondary);
}

.sidebar-bottom {
    padding: 16px;
    border-block-start: 1px solid var(--color-border-light);
}

.sidebar-progress {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding-block-end: 16px;
}

.progress-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.btn-logout {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.btn-logout:hover {
    background: var(--color-error-light);
    color: var(--color-error);
}

.btn-logout:hover svg {
    stroke: var(--color-error);
}

/* --- Mobile Header --- */
#mobile-header {
    display: none;
    position: fixed;
    inset-block-start: 0;
    inset-inline-start: 0;
    inset-inline-end: 0;
    height: 56px;
    background: var(--color-bg);
    border-block-end: 1px solid var(--color-border-light);
    padding: 0 16px;
    align-items: center;
    gap: 12px;
    z-index: var(--z-mobile-header);
}

.hamburger {
    padding: 4px;
    color: var(--color-text);
}

.mobile-logo {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    color: var(--color-primary-dark);
    letter-spacing: 0.04em;
    flex: 1;
}

#sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.3);
    z-index: var(--z-overlay);
}

/* --- Main Content --- */
#content {
    margin-inline-start: var(--sidebar-width);
    min-height: 100vh;
}

.page {
    animation: fadeIn var(--transition-normal) ease;
}

.page-inner {
    max-width: var(--content-max-width);
    margin: 0 auto;
    padding: 40px 32px;
}

.page-title {
    font-size: 2rem;
    margin-block-end: 8px;
}

.page-subtitle {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-block-end: 32px;
}

.section-heading {
    font-size: 1.25rem;
    margin-block-start: 40px;
    margin-block-end: 20px;
    color: var(--color-text);
}

/* --- Dashboard --- */
.welcome-banner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-bg-warm) 100%);
    padding: 32px;
    border-radius: var(--radius-lg);
    margin-block-end: 32px;
}

.welcome-text h1 {
    font-size: 1.75rem;
    margin-block-end: 8px;
}

.welcome-text p {
    color: var(--color-text-secondary);
    font-size: 1rem;
}

.welcome-progress {
    flex-shrink: 0;
}

.continue-section {
    margin-block-end: 8px;
}

.continue-section h2 {
    font-size: 1.125rem;
    margin-block-end: 12px;
    color: var(--color-text-secondary);
}

.continue-card {
    background: var(--color-bg);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.continue-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.continue-card-info {
    flex: 1;
}

.continue-card-stage {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-primary-dark);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.continue-card-step {
    font-size: 1rem;
    color: var(--color-text);
    margin-block-start: 4px;
}

.continue-card-arrow {
    color: var(--color-primary);
}

.stage-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.stage-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.stage-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.stage-card-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-bg-warm);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    margin-block-end: 12px;
}

.stage-card.completed .stage-card-number {
    background: var(--color-accent-light);
    color: var(--color-accent);
}

.stage-card.active .stage-card-number {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.stage-card-title {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    margin-block-end: 4px;
}

.stage-card-subtitle {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-block-end: 16px;
}

.stage-card-progress {
    display: flex;
    align-items: center;
    gap: 10px;
}

.stage-card-progress-bar {
    flex: 1;
    height: 6px;
    background: var(--color-bg-warm);
    border-radius: 3px;
    overflow: hidden;
}

.stage-card-progress-fill {
    height: 100%;
    border-radius: 3px;
    background: var(--color-primary);
    transition: width var(--transition-slow);
}

.stage-card.completed .stage-card-progress-fill {
    background: var(--color-accent);
}

.stage-card-progress-text {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    white-space: nowrap;
}

.stage-card-locked {
    position: absolute;
    inset-block-start: 12px;
    inset-inline-end: 12px;
    color: var(--color-text-muted);
}

/* --- Curriculum Timeline --- */
.curriculum-progress {
    margin-block-end: 32px;
}

.curriculum-progress-bar-outer {
    height: 8px;
    background: var(--color-bg-warm);
    border-radius: 4px;
    overflow: hidden;
    margin-block-start: 8px;
}

.curriculum-progress-bar-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: 4px;
    transition: width var(--transition-slow);
}

.curriculum-progress-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.timeline {
    position: relative;
    padding-inline-start: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    inset-inline-start: 15px;
    inset-block-start: 0;
    inset-block-end: 0;
    width: 2px;
    background: var(--color-border);
}

.timeline-stage {
    position: relative;
    margin-block-end: 32px;
}

.timeline-stage:last-child {
    margin-block-end: 0;
}

.timeline-dot {
    position: absolute;
    inset-inline-start: -33px;
    inset-block-start: 4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.timeline-dot.completed {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.timeline-dot.completed svg {
    display: block;
}

.timeline-dot.active {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-light);
}

.timeline-dot.locked {
    background: var(--color-bg-warm);
}

.timeline-dot svg {
    display: none;
    width: 12px;
    height: 12px;
}

.timeline-stage-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    cursor: pointer;
    padding: 16px 20px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.timeline-stage-header:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.timeline-stage-header.expanded {
    border-block-end-left-radius: 0;
    border-block-end-right-radius: 0;
    border-block-end-color: transparent;
}

[dir="rtl"] .timeline-stage-header.expanded {
    border-end-start-radius: 0;
    border-end-end-radius: 0;
}

.timeline-stage-info h3 {
    font-size: 1.125rem;
    margin-block-end: 4px;
}

.timeline-stage-info p {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.timeline-stage-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.timeline-stage-badge {
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.timeline-stage-badge.completed {
    background: var(--color-accent-light);
    color: var(--color-accent);
}

.timeline-stage-badge.in-progress {
    background: var(--color-primary-light);
    color: var(--color-primary-dark);
}

.timeline-stage-badge.locked {
    background: var(--color-bg-warm);
    color: var(--color-text-muted);
}

.timeline-stage-chevron {
    color: var(--color-text-muted);
    transition: transform var(--transition-fast);
}

.timeline-stage-chevron.expanded {
    transform: rotate(90deg);
}

[dir="rtl"] .timeline-stage-chevron {
    transform: rotate(180deg);
}

[dir="rtl"] .timeline-stage-chevron.expanded {
    transform: rotate(90deg);
}

.timeline-steps {
    border: 1px solid var(--color-border);
    border-block-start: none;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    overflow: hidden;
    animation: slideDown var(--transition-normal) ease;
}

.timeline-step {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    border-block-end: 1px solid var(--color-border-light);
    transition: background var(--transition-fast);
    cursor: pointer;
}

.timeline-step:last-child {
    border-block-end: none;
}

.timeline-step:hover {
    background: var(--color-bg-warm);
}

.timeline-step-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timeline-step-icon.completed {
    background: var(--color-accent);
    color: #FFFFFF;
}

.timeline-step-icon.pending {
    background: transparent;
    border: 2px solid var(--color-border);
}

.timeline-step-icon.active {
    background: transparent;
    border: 2px solid var(--color-primary);
}

.timeline-step-icon svg {
    width: 12px;
    height: 12px;
}

.timeline-step-info {
    flex: 1;
}

.timeline-step-title {
    font-size: 0.9375rem;
    color: var(--color-text);
}

.timeline-step-duration {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-block-start: 2px;
}

/* --- Stage Detail --- */
.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-block-end: 24px;
    transition: color var(--transition-fast);
}

[dir="rtl"] .btn-back svg {
    transform: rotate(180deg);
}

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

.stage-header {
    margin-block-end: 32px;
}

.stage-header-title {
    font-size: 1.75rem;
    margin-block-end: 8px;
}

.stage-header-desc {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-block-end: 20px;
    max-width: 640px;
}

.stage-progress-bar {
    height: 8px;
    background: var(--color-bg-warm);
    border-radius: 4px;
    overflow: hidden;
}

.stage-progress-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: 4px;
    transition: width var(--transition-slow);
}

.stage-progress-label {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-block-start: 8px;
}

.stage-steps {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.step-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color var(--transition-fast);
}

.step-card.active {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 1px var(--color-primary-light);
}

.step-card.completed {
    border-color: var(--color-accent-light);
}

.step-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.step-card-header:hover {
    background: var(--color-bg-warm);
}

.step-card-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-card-icon.completed {
    background: var(--color-accent);
    color: #FFFFFF;
}

.step-card-icon.pending {
    border: 2px solid var(--color-border);
}

.step-card-icon.active {
    border: 2px solid var(--color-primary);
    background: var(--color-primary-light);
}

.step-card-icon svg {
    width: 14px;
    height: 14px;
}

.step-card-title {
    flex: 1;
    font-size: 1rem;
}

.step-card-duration {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.step-card-chevron {
    color: var(--color-text-muted);
    transition: transform var(--transition-fast);
}

.step-card-chevron.expanded {
    transform: rotate(90deg);
}

[dir="rtl"] .step-card-chevron {
    transform: rotate(180deg);
}

[dir="rtl"] .step-card-chevron.expanded {
    transform: rotate(90deg);
}

.step-card-body {
    padding: 0 20px 20px;
    border-block-start: 1px solid var(--color-border-light);
    animation: slideDown var(--transition-normal) ease;
}

.step-card-body-inner {
    padding-block-start: 16px;
}

.step-card-description {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-block-end: 20px;
}

.step-card-description code {
    background: var(--color-bg-warm);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.875em;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

.step-guide-content {
    margin-block-end: 24px;
    padding: 20px 24px;
    background: var(--color-bg-warm);
    border-radius: 8px;
    border-inline-start: 3px solid var(--color-primary);
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--color-text-primary);
}

.step-guide-content h3 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    color: var(--color-text-primary);
    margin-block: 20px 8px;
    letter-spacing: 0.01em;
}

.step-guide-content h3:first-child {
    margin-block-start: 0;
}

.step-guide-content p {
    margin-block-end: 12px;
}

.step-guide-content ol,
.step-guide-content ul {
    padding-inline-start: 24px;
    margin-block-end: 12px;
}

.step-guide-content li {
    margin-block-end: 6px;
}

.step-guide-content pre {
    background: #1e1e2e;
    color: #cdd6f4;
    padding: 14px 18px;
    border-radius: 6px;
    overflow-x: auto;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    margin-block-end: 12px;
}

.step-guide-content code {
    background: rgba(0,0,0,0.06);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.875em;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

.step-guide-content pre code {
    background: none;
    padding: 0;
}

.step-guide-loading {
    color: var(--color-text-tertiary);
    font-style: italic;
    padding: 8px 0;
}

.step-guide-error {
    color: var(--color-error);
    font-size: 0.875rem;
}

.step-ask-daani {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-block-start: 16px;
    padding: 10px 16px;
    background: var(--color-primary-light);
    border-radius: 8px;
    cursor: pointer;
    border: none;
    font-size: 0.875rem;
    color: var(--color-primary-dark);
    font-weight: 500;
    transition: background var(--transition-fast) ease;
}

.step-ask-daani:hover {
    background: var(--color-primary);
    color: white;
}

.step-card-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-complete {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    background: var(--color-accent);
    color: #FFFFFF;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.btn-complete:hover {
    background: #247A40;
}

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

.btn-complete.done {
    background: var(--color-accent-light);
    color: var(--color-accent);
    cursor: default;
}

/* --- Starter Kit Banner --- */
.starter-kit-banner {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 24px;
    background: linear-gradient(135deg, var(--color-bg-warm), rgba(76, 153, 114, 0.08));
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-lg);
    margin-block-end: 28px;
}

.starter-kit-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.starter-kit-info {
    flex: 1;
    min-width: 0;
}

.starter-kit-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    margin-block-end: 4px;
}

.starter-kit-desc {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.starter-kit-btn {
    flex-shrink: 0;
    display: inline-block;
    padding: 10px 24px;
    background: var(--color-primary);
    color: #FFFFFF;
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: background var(--transition-fast);
    white-space: nowrap;
}

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

/* --- Guides --- */
.page-guides-layout {
    display: flex;
    gap: 32px;
    max-width: 1100px;
}

.guides-toc {
    width: 220px;
    flex-shrink: 0;
    position: sticky;
    inset-block-start: 40px;
    align-self: flex-start;
}

.guides-toc h3 {
    font-size: 0.6875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-block-end: 12px;
    font-family: var(--font-body);
    font-weight: 600;
}

.guides-toc ul {
    list-style: none;
}

.guides-toc li {
    margin-block-end: 2px;
    border-left: 2px solid transparent;
    transition: border-color 0.2s;
}

.guides-toc li:has(a.active) {
    border-left-color: var(--color-primary);
}

.guides-toc a {
    display: block;
    padding: 6px 12px;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    border-inline-start: 2px solid transparent;
    transition: all var(--transition-fast);
}

.guides-toc a:hover {
    background: var(--color-bg-warm);
    color: var(--color-text);
}

.guides-toc a.active {
    border-inline-start-color: var(--color-primary);
    color: var(--color-primary-dark);
    background: var(--color-primary-light);
}

.guides-content {
    flex: 1;
    min-width: 0;
}

.platform-toggle {
    display: inline-flex;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-block-end: 24px;
}

.platform-btn {
    padding: 8px 20px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-bg);
    border-inline-end: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

.platform-btn:last-child {
    border-inline-end: none;
}

.platform-btn.active {
    background: var(--color-primary);
    color: #FFFFFF;
}

.platform-btn:hover:not(.active) {
    background: var(--color-bg-warm);
}

.guides-body {
    font-size: 0.9375rem;
    line-height: 1.9;
    max-width: 720px;
}

.guides-body h1 {
    font-size: 1.75rem;
    margin-block-start: 48px;
    margin-block-end: 20px;
    padding-block-end: 12px;
    border-bottom: 1px solid var(--color-border);
}

.guides-body h1:first-child {
    margin-block-start: 0;
}

.guides-body h2 {
    font-size: 1.375rem;
    margin-block-start: 48px;
    margin-block-end: 16px;
    padding-block-start: 24px;
    border-top: 1px solid var(--color-border);
}

.guides-body h2:first-child,
.guides-body h1 + h2 {
    border-top: none;
    padding-block-start: 0;
}

.guides-body h3 {
    font-size: 1.125rem;
    margin-block-start: 32px;
    margin-block-end: 12px;
    color: var(--color-primary-dark);
}

.guides-body p {
    margin-block-end: 20px;
    color: var(--color-text-secondary);
}

.guides-body ul,
.guides-body ol {
    margin-block-end: 20px;
    padding-inline-start: 24px;
}

.guides-body li {
    margin-block-end: 10px;
    color: var(--color-text-secondary);
}

.guides-body li + li {
    padding-block-start: 2px;
}

.guides-body a {
    color: var(--color-primary-dark);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.guides-body hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 40px 0;
}

.guides-body pre {
    position: relative;
    background: var(--color-code-bg);
    color: var(--color-code-text);
    padding: 20px 24px;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin-block-end: 24px;
    font-size: 0.8125rem;
    line-height: 1.7;
    border-left: 3px solid var(--color-primary);
}

.guides-body pre code {
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    background: none;
    padding: 0;
    color: inherit;
}

.guides-body code {
    background: var(--color-bg-warm);
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.85em;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

.guides-body .platform-section {
    background: var(--color-bg-warm);
    border-left: 3px solid var(--color-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    padding: 20px 24px;
    margin-block-end: 24px;
}

.guides-body .platform-section h3 {
    margin-block-start: 0;
    font-size: 1rem;
    color: var(--color-primary);
}

/* --- Chat (Ask Daani) --- */
.chat-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    border-block-end: 1px solid var(--color-border-light);
    background: var(--color-bg);
}

.chat-header-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 1.125rem;
    flex-shrink: 0;
}

.chat-header-info h2 {
    font-size: 1rem;
    font-family: var(--font-body);
    font-weight: 600;
}

.chat-status {
    font-size: 0.75rem;
    color: var(--color-accent);
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: var(--chat-max-width);
    margin: 0 auto;
    width: 100%;
}

.chat-welcome {
    text-align: center;
    padding: 60px 24px 40px;
}

.chat-welcome-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #FFFFFF;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 1.75rem;
    margin-block-end: 16px;
}

.chat-welcome h3 {
    font-size: 1.375rem;
    margin-block-end: 8px;
}

.chat-welcome p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    max-width: 460px;
    margin: 0 auto;
}

.chat-message {
    display: flex;
    gap: 12px;
    animation: chatSlideIn var(--transition-normal) ease;
    max-width: 85%;
}

.chat-message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

[dir="rtl"] .chat-message.user {
    flex-direction: row;
}

[dir="rtl"] .chat-message:not(.user) {
    flex-direction: row-reverse;
}

.chat-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8125rem;
    font-weight: 600;
    flex-shrink: 0;
}

.chat-message.assistant .chat-avatar {
    background: var(--color-primary);
    color: #FFFFFF;
}

.chat-message.user .chat-avatar {
    background: var(--color-bg-warm);
    color: var(--color-text-secondary);
}

.chat-bubble {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    line-height: 1.7;
    max-width: 100%;
    overflow-wrap: break-word;
}

.chat-message.assistant .chat-bubble {
    background: var(--color-primary-light);
    color: var(--color-text);
    border-start-start-radius: var(--radius-sm);
}

.chat-message.user .chat-bubble {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    border-start-end-radius: var(--radius-sm);
}

[dir="rtl"] .chat-message.assistant .chat-bubble {
    border-start-start-radius: var(--radius-md);
    border-start-end-radius: var(--radius-sm);
}

[dir="rtl"] .chat-message.user .chat-bubble {
    border-start-end-radius: var(--radius-md);
    border-start-start-radius: var(--radius-sm);
}

.chat-bubble p {
    margin-block-end: 8px;
}

.chat-bubble p:last-child {
    margin-block-end: 0;
}

.chat-bubble code {
    background: rgba(0,0,0,0.06);
    padding: 1px 5px;
    border-radius: 3px;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.875em;
}

.chat-bubble pre {
    position: relative;
    background: var(--color-code-bg);
    color: var(--color-code-text);
    padding: 16px;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    margin: 8px 0;
    font-size: 0.8125rem;
    line-height: 1.5;
}

.chat-bubble pre code {
    background: none;
    padding: 0;
    color: inherit;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

.code-copy-btn {
    position: absolute;
    inset-block-start: 8px;
    inset-inline-end: 8px;
    padding: 4px 8px;
    background: rgba(255,255,255,0.1);
    color: #999;
    border-radius: 4px;
    font-size: 0.6875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 4px;
}

.code-copy-btn:hover {
    background: rgba(255,255,255,0.2);
    color: #FFF;
}

.code-copy-btn.copied {
    color: var(--color-accent);
}

.chat-bubble ul,
.chat-bubble ol {
    padding-inline-start: 20px;
    margin-block-end: 8px;
}

.chat-bubble li {
    margin-block-end: 4px;
}

.chat-bubble a {
    color: var(--color-primary-dark);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.chat-bubble h1,
.chat-bubble h2,
.chat-bubble h3 {
    font-family: var(--font-body);
    font-weight: 600;
    margin-block-start: 12px;
    margin-block-end: 6px;
}

.chat-bubble h1 { font-size: 1.125rem; }
.chat-bubble h2 { font-size: 1rem; }
.chat-bubble h3 { font-size: 0.9375rem; }

.typing-indicator {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 24px;
    max-width: var(--chat-max-width);
    margin: 0 auto;
    width: 100%;
}

.typing-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8125rem;
    font-weight: 600;
    flex-shrink: 0;
}

.typing-dots {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    background: var(--color-primary-light);
    border-radius: var(--radius-md);
    border-start-start-radius: var(--radius-sm);
}

.typing-dots span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-primary);
    opacity: 0.4;
    animation: typingBounce 1.4s infinite;
}

.typing-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

.chat-input-area {
    padding: 12px 24px 24px;
    background: var(--color-bg);
    border-block-start: 1px solid var(--color-border-light);
    max-width: var(--chat-max-width);
    margin: 0 auto;
    width: 100%;
    z-index: var(--z-chat-input);
}

.quick-actions {
    display: flex;
    gap: 8px;
    margin-block-end: 12px;
    flex-wrap: wrap;
}

.quick-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border: 1px solid var(--color-border);
    border-radius: 20px;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    background: var(--color-bg);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.quick-action-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
    background: var(--color-primary-light);
}

.chat-input-row {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 8px 8px 8px 16px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.chat-input-row:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

#chat-input {
    flex: 1;
    border: none;
    outline: none;
    resize: none;
    font-size: 0.9375rem;
    line-height: 1.5;
    max-height: 120px;
    min-height: 24px;
    padding: 4px 0;
    background: transparent;
    color: var(--color-text);
}

#chat-input::placeholder {
    color: var(--color-text-muted);
}

.btn-send {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--color-primary);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

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

.btn-send:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* --- Settings --- */
.settings-page {
    max-width: 600px;
}

.settings-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    margin-block-end: 20px;
}

.settings-card h3 {
    font-size: 1rem;
    font-family: var(--font-body);
    font-weight: 600;
    margin-block-end: 20px;
    padding-block-end: 12px;
    border-block-end: 1px solid var(--color-border-light);
}

.account-info {
    font-size: 0.9375rem;
}

.account-info-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-block-end: 1px solid var(--color-border-light);
}

.account-info-row:last-child {
    border-block-end: none;
}

.account-info-label {
    color: var(--color-text-secondary);
}

.account-info-value {
    color: var(--color-text);
}

/* --- Progress Ring --- */
.progress-ring-container {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.progress-ring-svg {
    transform: rotate(-90deg);
}

.progress-ring-bg {
    fill: none;
    stroke: var(--color-bg-warm);
}

.progress-ring-fill {
    fill: none;
    stroke: var(--color-primary);
    stroke-linecap: round;
    transition: stroke-dashoffset 1s ease;
}

.progress-ring-fill.complete {
    stroke: var(--color-accent);
}

.progress-ring-text {
    position: absolute;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text);
}

.progress-ring-text.small {
    font-size: 0.625rem;
}

/* --- Copy Button (used in guides + chat code blocks) --- */
.copy-btn {
    position: absolute;
    inset-block-start: 8px;
    inset-inline-end: 8px;
    padding: 4px 10px;
    background: rgba(255,255,255,0.08);
    color: #999;
    border-radius: 4px;
    font-size: 0.6875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all var(--transition-fast);
}

.copy-btn:hover {
    background: rgba(255,255,255,0.15);
    color: #FFF;
}

.copy-btn.copied {
    color: var(--color-accent);
}

/* --- Celebration Overlay --- */
.celebration {
    position: fixed;
    inset-block-start: 50%;
    inset-inline-start: 50%;
    transform: translate(-50%, -50%);
    background: var(--color-bg);
    padding: 32px 48px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    text-align: center;
    z-index: var(--z-toast);
    animation: celebrationPop 0.4s ease;
}

.celebration-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-accent-light);
    color: var(--color-accent);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-block-end: 12px;
}

.celebration-icon svg {
    width: 24px;
    height: 24px;
}

.celebration h3 {
    font-size: 1.25rem;
    margin-block-end: 4px;
}

.celebration p {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.celebration-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.2);
    z-index: calc(var(--z-toast) - 1);
}

/* --- Animations --- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
    from { opacity: 0; max-height: 0; }
    to { opacity: 1; max-height: 1000px; }
}

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

@keyframes typingBounce {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-4px); opacity: 1; }
}

@keyframes celebrationPop {
    0% { transform: translate(-50%, -50%) scale(0.8); opacity: 0; }
    60% { transform: translate(-50%, -50%) scale(1.05); }
    100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}

@keyframes progressFill {
    from { stroke-dashoffset: var(--ring-circumference); }
}

/* --- Responsive --- */
@media (max-width: 768px) {
    #mobile-header {
        display: flex;
    }

    #sidebar {
        transform: translateX(-100%);
        box-shadow: none;
    }

    [dir="rtl"] #sidebar {
        transform: translateX(100%);
    }

    #sidebar.open {
        transform: translateX(0);
        box-shadow: var(--shadow-lg);
    }

    #content {
        margin-inline-start: 0;
        padding-block-start: 56px;
    }

    .page-inner {
        padding: 24px 16px;
    }

    .stage-grid {
        grid-template-columns: 1fr;
    }

    .welcome-banner {
        flex-direction: column;
        text-align: center;
        gap: 20px;
        padding: 24px;
    }

    .page-guides-layout {
        flex-direction: column;
    }

    .guides-toc {
        width: 100%;
        position: static;
        border-block-end: 1px solid var(--color-border-light);
        padding-block-end: 16px;
        margin-block-end: 8px;
    }

    .guides-toc ul {
        display: flex;
        flex-wrap: wrap;
        gap: 4px;
    }

    .chat-container {
        height: calc(100vh - 56px);
    }

    .chat-messages {
        padding: 16px;
    }

    .chat-input-area {
        padding: 12px 16px 16px;
    }

    .quick-actions {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .quick-actions::-webkit-scrollbar {
        display: none;
    }

    .chat-message {
        max-width: 92%;
    }

    .timeline {
        padding-inline-start: 32px;
    }

    .timeline-dot {
        inset-inline-start: -25px;
        width: 16px;
        height: 16px;
    }

    .timeline::before {
        inset-inline-start: 11px;
    }

    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .settings-page {
        max-width: 100%;
    }

    .continue-card {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* --- Voice toggle & speak button --- */
.voice-toggle {
    margin-inline-start: auto;
    background: none;
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-sm);
    padding: 6px 10px;
    cursor: pointer;
    color: var(--color-text-muted);
    transition: all var(--transition-fast) ease;
    display: flex;
    align-items: center;
    gap: 4px;
}

.voice-toggle.active {
    color: var(--color-accent);
    border-color: var(--color-accent);
    background: var(--color-accent-light);
}

.voice-toggle:hover {
    border-color: var(--color-primary);
}

.chat-msg-actions {
    display: flex;
    gap: 8px;
    margin-block-start: 8px;
    padding-block-start: 6px;
    border-block-start: 1px solid rgba(0,0,0,0.05);
}

.btn-speak {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    padding: 4px 8px;
    border-radius: var(--radius-xs);
    color: var(--color-text-muted);
    transition: all var(--transition-fast) ease;
    line-height: 1;
}

.btn-speak:hover {
    background: var(--color-bg-warm);
    color: var(--color-primary);
}

@media (max-width: 480px) {
    .starter-kit-banner {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }

    .starter-kit-btn {
        width: 100%;
        text-align: center;
    }

    .auth-form {
        padding: 24px 20px;
    }

    .page-title {
        font-size: 1.5rem;
    }

    .welcome-text h1 {
        font-size: 1.375rem;
    }

    /* Touch targets */
    .btn {
        padding: 12px 20px;
        min-height: 44px;
    }

    .btn-send {
        width: 44px;
        height: 44px;
    }

    .quick-action-btn {
        padding: 10px 12px;
        min-height: 40px;
        font-size: 0.75rem;
    }

    .hamburger {
        padding: 8px;
        min-width: 44px;
        min-height: 44px;
    }

    /* Prevent iOS zoom on focus */
    .form-group input,
    .form-group select,
    .form-group textarea,
    #chat-input {
        font-size: 16px;
    }

    /* Timeline tighter on small screens */
    .timeline {
        padding-inline-start: 24px;
    }

    .timeline-dot {
        inset-inline-start: -22px;
        width: 14px;
        height: 14px;
    }

    .timeline::before {
        inset-inline-start: 9px;
    }

    /* Code blocks */
    .guides-body pre,
    .step-guide-content pre,
    .chat-bubble pre {
        font-size: 0.75rem;
        padding: 12px;
        max-width: 100%;
        -webkit-overflow-scrolling: touch;
    }

    /* Chat on mobile */
    .chat-container {
        height: 100dvh;
    }

    .chat-messages {
        padding: 12px;
    }

    .chat-message {
        max-width: 95%;
    }

    .chat-input-area {
        padding: 8px 12px 12px;
    }

    .chat-welcome {
        padding: 40px 16px 20px;
    }

    .auth-logo-text {
        font-size: 1.5rem;
    }

    .section-heading {
        font-size: 1rem;
    }

    .step-guide-content {
        padding: 16px;
    }

    .step-ask-daani {
        font-size: 0.8125rem;
        padding: 10px 14px;
    }
}

/* --- Print --- */
@media print {
    #sidebar,
    #mobile-header,
    #sidebar-overlay,
    .chat-input-area,
    .quick-actions,
    .btn-complete,
    .btn-back,
    .platform-toggle {
        display: none !important;
    }

    #content {
        margin-inline-start: 0 !important;
    }

    .page-inner {
        max-width: 100%;
        padding: 0;
    }

    body {
        font-size: 12pt;
    }
}

/* --- RTL-specific overrides --- */
[dir="rtl"] .timeline {
    padding-inline-start: 40px;
    padding-inline-end: 0;
}

[dir="rtl"] .timeline::before {
    inset-inline-start: auto;
    inset-inline-end: 15px;
}

[dir="rtl"] .timeline-dot {
    inset-inline-start: auto;
    inset-inline-end: -33px;
}

[dir="rtl"] .typing-dots {
    border-start-start-radius: var(--radius-md);
    border-start-end-radius: var(--radius-sm);
}

@media (max-width: 768px) {
    [dir="rtl"] .timeline-dot {
        inset-inline-start: auto;
        inset-inline-end: -25px;
    }

    [dir="rtl"] .timeline::before {
        inset-inline-start: auto;
        inset-inline-end: 11px;
    }
}

/* --- Scrollbar styling --- */
.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}

/* --- Loading spinner --- */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-block-start-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

.btn .spinner {
    width: 16px;
    height: 16px;
    border-width: 2px;
    border-color: rgba(255,255,255,0.3);
    border-block-start-color: #FFFFFF;
}

/* --- Toast notification --- */
.toast {
    position: fixed;
    inset-block-end: 24px;
    inset-inline-end: 24px;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    z-index: var(--z-toast);
    animation: fadeIn var(--transition-normal) ease;
    box-shadow: var(--shadow-md);
}

.toast.success {
    background: var(--color-accent);
    color: #FFFFFF;
}

.toast.error {
    background: var(--color-error);
    color: #FFFFFF;
}

.toast.info {
    background: var(--color-text);
    color: var(--color-bg);
}