/* Infinitha — minimal SaaS shell (Bootstrap 5 + tokens) */

:root {
    --saas-bg: #f8f9fb;
    --saas-surface: #ffffff;
    --saas-border: rgba(15, 23, 42, 0.07);
    --saas-text: #0f172a;
    --saas-muted: #64748b;
    --saas-card-radius: 12px;
    --saas-shadow: 0 1px 2px rgba(15, 23, 42, 0.05), 0 4px 16px rgba(15, 23, 42, 0.04);
    --saas-shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.07);
    --saas-primary: #0f766e;
    --saas-primary-hover: #0d5f58;
    --saas-primary-soft: rgba(15, 118, 110, 0.1);
    --bs-primary: #0f766e;
    --bs-primary-rgb: 15, 118, 110;
}

body.saas {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--saas-bg) !important;
    color: var(--saas-text);
    -webkit-font-smoothing: antialiased;
}

/* Typography */
body.saas h1,
body.saas .h1 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

body.saas h2,
body.saas .h2 {
    font-size: 1.35rem;
    font-weight: 600;
}

body.saas h5,
body.saas .h5 {
    font-weight: 600;
    letter-spacing: -0.01em;
}

body.saas h6,
body.saas .h6 {
    font-weight: 600;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--saas-muted);
}

/* Primary buttons */
body.saas .btn-primary {
    --bs-btn-bg: var(--saas-primary);
    --bs-btn-border-color: var(--saas-primary);
    --bs-btn-hover-bg: var(--saas-primary-hover);
    --bs-btn-hover-border-color: var(--saas-primary-hover);
    --bs-btn-active-bg: var(--saas-primary-hover);
    --bs-btn-active-border-color: var(--saas-primary-hover);
    --bs-btn-disabled-bg: var(--saas-primary);
    --bs-btn-disabled-border-color: var(--saas-primary);
    font-weight: 500;
    padding-left: 1rem;
    padding-right: 1rem;
}

body.saas .btn-outline-primary {
    --bs-btn-color: var(--saas-primary);
    --bs-btn-border-color: var(--saas-primary);
    --bs-btn-hover-bg: var(--saas-primary);
    --bs-btn-hover-border-color: var(--saas-primary);
    --bs-btn-active-bg: var(--saas-primary-hover);
    --bs-btn-active-border-color: var(--saas-primary-hover);
    font-weight: 500;
}

body.saas .btn,
body.saas .btn-sm,
body.saas .btn-lg {
    border-radius: 8px;
}

body.saas .btn-lg {
    border-radius: 10px;
}

/* Cards */
body.saas .saas-card,
body.saas .card.saas-card {
    border-radius: var(--saas-card-radius);
    border: 1px solid var(--saas-border);
    box-shadow: var(--saas-shadow-sm);
    background: var(--saas-surface);
}

/* Forms */
body.saas .form-control,
body.saas .form-select {
    border-radius: 8px;
    border-color: #e2e8f0;
    padding: 0.5rem 0.75rem;
}

body.saas .form-control:focus,
body.saas .form-select:focus {
    border-color: var(--saas-primary);
    box-shadow: 0 0 0 0.2rem rgba(15, 118, 110, 0.18);
}

body.saas .form-label {
    font-weight: 500;
    font-size: 0.8125rem;
    color: #475569;
    margin-bottom: 0.35rem;
}

body.saas .form-text {
    color: var(--saas-muted);
    font-size: 0.75rem;
}

/* Sticky header (public) */
body.saas .saas-header {
    z-index: 1030;
    background: var(--saas-surface) !important;
    box-shadow: 0 1px 0 var(--saas-border);
}

/* Admin shell */
body.saas-admin .saas-aside {
    background: var(--saas-surface) !important;
    border-color: var(--saas-border) !important;
}

body.saas-admin .saas-aside .nav-link {
    border-radius: 8px;
    font-weight: 500;
    color: #64748b;
}

body.saas-admin .saas-aside .nav-link:hover {
    background: #f1f5f9;
    color: var(--saas-text);
}

body.saas-admin .saas-aside .nav-link.fw-semibold.text-dark.bg-body-secondary,
body.saas-admin .saas-aside .nav-link.active {
    background: var(--saas-primary-soft) !important;
    color: var(--saas-primary) !important;
}

body.saas-admin .saas-main {
    background: var(--saas-bg);
}

/* Tables */
body.saas .saas-table-wrap {
    border-radius: var(--saas-card-radius);
    overflow: hidden;
    border: 1px solid var(--saas-border);
    box-shadow: var(--saas-shadow-sm);
    background: var(--saas-surface);
}

body.saas .saas-table-wrap .table {
    margin-bottom: 0;
}

body.saas .saas-table-wrap .table thead th {
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--saas-muted);
    background: #f8fafc !important;
    border-bottom-color: var(--saas-border);
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}

body.saas .saas-table-wrap .table-striped > tbody > tr:nth-of-type(odd) > * {
    --bs-table-bg-type: #fafbfc;
}

body.saas .saas-table-wrap .table-hover tbody tr:hover > * {
    --bs-table-hover-bg: rgba(15, 118, 110, 0.04);
}

/* Dashboard stat cards */
body.saas .saas-stat-card .saas-stat-icon-wrap {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 10px;
    background: var(--saas-primary-soft);
    color: var(--saas-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

body.saas .saas-stat-card .saas-stat-value {
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.2;
    color: var(--saas-text);
}

body.saas .saas-stat-card .saas-stat-label {
    font-size: 0.8125rem;
    color: var(--saas-muted);
    font-weight: 500;
}

body.saas a:hover .saas-stat-card {
    box-shadow: 0 4px 14px rgba(15, 118, 110, 0.12);
    border-color: rgba(15, 118, 110, 0.2);
}

/* Alerts */
body.saas .alert {
    border-radius: 10px;
    border: none;
}

body.saas .alert-success {
    background: rgba(15, 118, 110, 0.1);
    color: #0f5c56;
}

body.saas .alert-danger {
    background: rgba(220, 38, 38, 0.08);
    color: #991b1b;
}

body.saas .alert-warning {
    background: rgba(217, 119, 6, 0.1);
    color: #92400e;
}

/* Badges */
body.saas .badge {
    font-weight: 500;
    padding: 0.35em 0.55em;
}

/* Empty state card */
body.saas .saas-empty {
    border-radius: var(--saas-card-radius);
    border: 1px dashed var(--saas-border);
    background: var(--saas-surface);
    box-shadow: var(--saas-shadow-sm);
}

/* Links */
body.saas .link-primary {
    color: var(--saas-primary) !important;
}

/* --------------------------------------------------------------------------
   Mobile-first: spacing, type, tap targets, overflow
   -------------------------------------------------------------------------- */
html {
    overflow-x: hidden;
}

body.saas {
    font-size: clamp(0.9375rem, 0.9rem + 0.2vw, 1rem);
    line-height: 1.55;
}

body.saas .saas-container,
body.saas .saas-container-fluid {
    width: 100%;
    max-width: 100%;
    padding-left: clamp(12px, 3vw, 16px) !important;
    padding-right: clamp(12px, 3vw, 16px) !important;
}

body.saas .saas-container-fluid {
    box-sizing: border-box;
}

@media (min-width: 768px) {
    body.saas .saas-container {
        max-width: 1140px;
    }
}

/* Touch-friendly buttons (main app + admin) */
@media (max-width: 767.98px) {
    body.saas .saas-btn-touch {
        min-height: 44px;
        padding-top: 0.55rem;
        padding-bottom: 0.55rem;
    }

    body.saas main .btn:not(.btn-close):not(.navbar-toggler):not(.btn-link) {
        min-height: 44px;
    }

    body.saas .btn-sm {
        min-height: 40px;
        padding-left: 0.85rem;
        padding-right: 0.85rem;
    }

    body.saas .saas-actions-stack {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }

    body.saas .saas-actions-stack > .btn,
    body.saas .saas-actions-stack > a.btn {
        width: 100%;
    }
}

/* Forms: full width + comfortable targets on small screens */
@media (max-width: 767.98px) {
    body.saas .form-control:not(textarea),
    body.saas .form-select {
        width: 100%;
        min-height: 44px;
        font-size: 1rem;
    }

    body.saas .form-control-lg {
        min-height: 48px;
    }

    body.saas .mb-field {
        margin-bottom: 1rem !important;
    }
}

/* Admin mobile header */
body.saas-admin .saas-admin-mobile-header .navbar-toggler {
    padding: 0.35rem 0.55rem;
}

body.saas-admin .saas-admin-mobile-header .navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(15, 118, 110, 0.2);
}

/* --------------------------------------------------------------------------
   Session chat (full-height, WhatsApp-style)
   -------------------------------------------------------------------------- */
.session-page {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    min-height: 0;
    width: 100%;
    max-width: 36rem;
    margin-left: auto;
    margin-right: auto;
    padding-left: clamp(12px, 3vw, 16px);
    padding-right: clamp(12px, 3vw, 16px);
    padding-bottom: env(safe-area-inset-bottom, 0px);
}

@keyframes sessionFadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

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

.session-page-root--enter {
    animation: sessionFadeIn 0.55s ease-out both;
}

@media (prefers-reduced-motion: reduce) {
    .session-page-root--enter {
        animation: none;
    }
}

.session-page__timeline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.35rem 0 0.85rem;
}

.session-page__timeline-dot {
    width: 0.4375rem;
    height: 0.4375rem;
    border-radius: 50%;
    background: rgba(15, 118, 110, 0.22);
    transition: transform 0.35s ease, background 0.35s ease, box-shadow 0.35s ease;
}

.session-page__timeline-dot--visited,
.session-page__timeline-dot--current {
    background: var(--saas-primary);
}

.session-page__timeline-dot--current {
    transform: scale(1.45);
    box-shadow: 0 0 0 3px var(--saas-primary-soft);
}

.session-page--with-presenter .session-page__scroll {
    min-height: 12rem;
}

.session-page__header--compact {
    padding-top: 0;
    padding-bottom: 0.5rem;
}

.session-page__header--compact .session-page__eyebrow {
    margin-bottom: 0.15rem;
}

.session-chat-msg__avatar--presenter {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--saas-primary);
}

.session-page__header {
    flex-shrink: 0;
    padding-top: 0.25rem;
    padding-bottom: 0.85rem;
}

.session-page__eyebrow {
    font-size: 0.7rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--saas-muted);
    margin-bottom: 0.35rem;
}

.session-page__subtitle {
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--saas-muted);
    margin: 0.5rem 0 0;
    max-width: 28rem;
}

.session-page__subtitle-sep {
    margin: 0 0.35rem;
    opacity: 0.5;
}

.session-page__intro {
    font-size: 0.95rem;
    line-height: 1.55;
    color: var(--saas-muted);
    padding: 0.85rem 1rem;
    margin-bottom: 0.65rem;
    border-radius: 0.75rem;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(15, 23, 42, 0.06);
}

.session-page__error {
    flex-shrink: 0;
}

.session-page__scroll {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 0.75rem 0.75rem 1rem;
    background: #eef0f4;
    border: 1px solid var(--saas-border);
    border-radius: var(--saas-card-radius);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.session-page__composer {
    flex-shrink: 0;
    position: sticky;
    bottom: 0;
    z-index: 5;
    padding-top: 0.75rem;
    padding-bottom: max(0.75rem, env(safe-area-inset-bottom, 0px));
    margin-top: auto;
    background: linear-gradient(to top, var(--saas-bg) 55%, transparent);
}

.session-page__messages {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.session-page__form {
    display: flex;
    gap: 0.5rem;
    align-items: stretch;
    width: 100%;
    background: var(--saas-surface);
    border: 1px solid var(--saas-border);
    border-radius: 20px;
    padding: 0.35rem 0.35rem 0.35rem 1rem;
    box-shadow: var(--saas-shadow-sm);
}

.session-page__form input {
    flex: 1 1 auto;
    min-width: 0;
    border: 0;
    outline: 0;
    font-size: 1rem;
    line-height: 1.5;
    min-height: 44px;
    padding: 0.35rem 0;
    background: transparent;
}

.session-page__form input::placeholder {
    color: #94a3b8;
}

.session-page__form button {
    flex-shrink: 0;
    border: 0;
    border-radius: 10px;
    padding: 0 1.1rem;
    min-height: 44px;
    min-width: 4.5rem;
    font-weight: 600;
    font-size: 0.9375rem;
    background: var(--saas-primary);
    color: #fff;
    cursor: pointer;
}

.session-page__form button:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

/* Chat rows (AI assistant style) */
.session-chat-msg {
    display: flex;
    width: 100%;
    align-items: flex-end;
}

.session-chat-msg--user {
    justify-content: flex-end;
}

.session-chat-msg--assistant {
    justify-content: flex-start;
    gap: 0.5rem;
}

.session-chat-msg__avatar {
    width: 2rem;
    height: 2rem;
    min-width: 2rem;
    border-radius: 50%;
    flex-shrink: 0;
    background: linear-gradient(145deg, rgba(15, 118, 110, 0.18), rgba(15, 118, 110, 0.08));
    color: var(--saas-primary);
    font-size: 0.5625rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    border: 1px solid rgba(15, 118, 110, 0.15);
}

.session-chat-msg__bubble {
    max-width: min(88%, 22rem);
    padding: 0.65rem 1rem;
    border-radius: 16px;
    font-size: 0.9375rem;
    line-height: 1.55;
    word-wrap: break-word;
    overflow-wrap: anywhere;
    /* Preserve \n\n from API (FormatResponseService) as visible paragraph gaps */
    white-space: pre-line;
}

.session-chat-msg__bubble--user {
    background: var(--saas-primary);
    color: #fff;
    border-bottom-right-radius: 4px;
}

.session-chat-msg__bubble--assistant {
    background: #e8eaef;
    color: #1e293b;
    border-bottom-left-radius: 4px;
    border: 1px solid rgba(15, 23, 42, 0.05);
}

/* Typing indicator */
.session-typing {
    display: flex;
    align-items: flex-end;
    gap: 0.5rem;
}

.session-typing__bubble {
    background: #e8eaef;
    border: 1px solid rgba(15, 23, 42, 0.05);
    padding: 0.6rem 1rem 0.65rem;
    border-radius: 16px;
    border-bottom-left-radius: 4px;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    min-height: 2.5rem;
}

.session-typing__label {
    font-size: 0.75rem;
    color: #64748b;
    font-weight: 500;
    margin-right: 0.15rem;
}

.session-typing__dots {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding-top: 0.1rem;
}

.session-typing__dots span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #64748b;
    animation: sessionTypingDot 1.15s ease-in-out infinite;
}

.session-typing__dots span:nth-child(2) {
    animation-delay: 0.18s;
}

.session-typing__dots span:nth-child(3) {
    animation-delay: 0.36s;
}

@keyframes sessionTypingDot {
    0%,
    70%,
    100% {
        transform: translateY(0);
        opacity: 0.35;
    }

    35% {
        transform: translateY(-5px);
        opacity: 1;
    }
}

.session-page__nav {
    padding: 0.65rem 1rem 0;
    max-width: 40rem;
    margin: 0 auto;
    width: 100%;
}

.session-page__back {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--saas-primary);
    text-decoration: none;
    padding: 0.25rem 0;
}

.session-page__back:hover {
    color: var(--saas-primary-hover);
    text-decoration: underline;
}

.session-page__back::before {
    content: '←';
    font-size: 1rem;
    line-height: 1;
}

.session-page-root {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    min-height: 0;
    width: 100%;
}

@media (min-width: 768px) {
    .session-page {
        min-height: calc(100dvh - 4.5rem);
    }
}

@media (max-width: 767.98px) {
    .session-page {
        min-height: calc(100dvh - 3.25rem);
    }
}