/* SnapBrain Web — Mist & Ink shell */

html,
body {
    height: 100%;
    margin: 0;
    font-family: var(--sb-font-body, "Manrope", "Segoe UI", sans-serif);
    color: var(--sb-ink, #0f172a);
    background-color: var(--sb-page, #f4f7fb);
    background-image: var(--sb-page-glow);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
.login-title,
.detail-title,
.dict-title,
.dict-detail-front,
.result-title,
.upsert-title,
.upsert-setup-title,
.knowledge-title,
.app-profile-name,
.app-notification-title,
.app-loading-title {
    font-family: var(--sb-font-display, "Sora", "Segoe UI", sans-serif);
    letter-spacing: -0.02em;
}

a,
.btn-link {
    color: var(--sb-accent-deep, #115e59);
}

a:hover {
    color: var(--sb-accent-hover, #0d9488);
}

.btn-primary {
    color: #fff;
    background-color: var(--sb-accent, #0f766e);
    border-color: var(--sb-accent, #0f766e);
}

.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
    box-shadow: var(--sb-focus, 0 0 0 3px rgba(13, 148, 136, 0.28));
}

.app-shell .practice-next,
.app-shell .result-next,
.app-shell .sync-btn,
.app-shell .editcard-btn,
.app-shell .grammar-editor-btn,
.app-shell .assistant-analyze-button,
.app-shell .btn-google,
.app-shell .app-panel-btn,
.app-shell .app-notification-btn,
.app-shell .deck-add,
.app-shell .upsert-save,
.app-shell .dict-btn,
.app-shell .add-to-path-btn,
.app-shell .assistant-send,
.app-shell .assistant-suggestion-add {
    height: var(--sb-action-btn-height);
    border-radius: var(--sb-action-btn-radius);
    font-size: var(--sb-action-btn-font-size);
    padding-left: var(--sb-action-btn-padding-x);
    padding-right: var(--sb-action-btn-padding-x);
    box-sizing: border-box;
    font-family: var(--sb-font-body, "Manrope", sans-serif);
    transition: transform var(--sb-duration) var(--sb-ease),
        background-color var(--sb-duration) var(--sb-ease),
        border-color var(--sb-duration) var(--sb-ease),
        box-shadow var(--sb-duration) var(--sb-ease);
}

.app-shell button:not(:disabled):hover {
    transform: translateY(-1px);
}

.app-shell button:not(:disabled):active {
    transform: translateY(0);
}

.app-shell input,
.app-shell textarea,
.app-shell select {
    font-family: inherit;
    transition: border-color var(--sb-duration) var(--sb-ease), box-shadow var(--sb-duration) var(--sb-ease);
}

.app-shell input:focus,
.app-shell textarea:focus,
.app-shell select:focus {
    outline: none;
    border-color: var(--sb-accent-hover, #0d9488) !important;
    box-shadow: var(--sb-focus);
}

.content {
    padding-top: 1.1rem;
}

h1:focus {
    outline: none;
}

.valid.modified:not([type="checkbox"]) {
    outline: 1px solid var(--sb-success, #059669);
}

.invalid {
    outline: 1px solid var(--sb-danger, #dc2626);
}

.validation-message {
    color: var(--sb-danger, #dc2626);
}

.blazor-error-boundary {
    background: var(--sb-danger-soft, #fef2f2);
    border: 1px solid var(--sb-danger-border, #fecaca);
    border-radius: var(--sb-radius);
    padding: 1rem 1.25rem;
    color: var(--sb-danger, #dc2626);
    font-family: var(--sb-font-body);
}

.blazor-error-boundary::after {
    content: "An error has occurred.";
}

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder,
.form-floating > .form-control:focus::placeholder {
    text-align: start;
}

/* Web-only page polish */
.app-root-loading {
    min-height: 60vh;
    display: grid;
    place-items: center;
    color: var(--sb-muted);
    font-family: var(--sb-font-body);
    animation: sb-fade-up 0.45s var(--sb-ease) both;
}

.error-page {
    max-width: 520px;
    margin: 3rem auto;
    padding: 2rem;
    background: var(--sb-surface);
    border: 1px solid var(--sb-line);
    border-radius: var(--sb-radius-lg);
    box-shadow: var(--sb-shadow);
    animation: sb-fade-up 0.4s var(--sb-ease) both;
}

.error-page h1 {
    margin: 0 0 0.35rem;
    font-size: 1.75rem;
    color: var(--sb-ink);
}

.error-page h2 {
    margin: 0 0 1rem;
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--sb-muted);
}

.error-page h3 {
    margin: 1.5rem 0 0.5rem;
    font-size: 0.95rem;
    color: var(--sb-ink-soft);
}

.error-page p {
    color: var(--sb-muted);
    line-height: 1.5;
}

.auth-callback {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    animation: sb-fade-up 0.4s var(--sb-ease) both;
}

.auth-callback-loading {
    width: min(100%, 360px);
    border-radius: var(--sb-radius-lg);
    background: var(--sb-surface);
    border: 1px solid var(--sb-line);
    box-shadow: var(--sb-shadow);
    padding: 1.5rem 1.25rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.65rem;
    text-align: center;
}

.auth-callback-spinner {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 3px solid var(--sb-accent-muted);
    border-top-color: var(--sb-accent);
    animation: sb-spin 0.8s linear infinite;
}

.auth-callback-text {
    margin: 0;
    color: var(--sb-ink-soft);
    font-weight: 600;
    font-family: var(--sb-font-body);
}

.auth-callback-dots {
    display: inline-flex;
    gap: 0.35rem;
}

.auth-callback-dots span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--sb-accent-hover);
    animation: sb-dot-pulse 1.2s ease-in-out infinite;
}

.auth-callback-dots span:nth-child(1) {
    background: #5eead4;
}

.auth-callback-dots span:nth-child(2) {
    animation-delay: 0.15s;
}

.auth-callback-dots span:nth-child(3) {
    background: var(--sb-accent);
    animation-delay: 0.3s;
}

.auth-callback-error {
    color: var(--sb-danger);
    font-weight: 600;
    text-align: center;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}