/*
 * Deep Dive AI — quiet interface layer
 * A restrained, neutral design system applied after the legacy component CSS.
 */

:root {
    --font-main: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-display: var(--font-main);
    --bg-app: #f7f7f5;
    --bg-panel: #ffffff;
    --bg-element: #f1f1ee;
    --bg-card: #ffffff;
    --text-primary: #202123;
    --text-secondary: #6b6c6f;
    --text-tertiary: #929397;
    --border-subtle: #e3e3df;
    --border-strong: #d0d0cb;
    --accent-color: #0d7c66;
    --accent-hover: #096652;
    --accent-cyan: #0d7c66;
    --violet: #0d7c66;
    --ink: #202123;
    --paper: #ffffff;
    --coral: #0d7c66;
    --radius-xs: 6px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-soft: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 30px rgba(0, 0, 0, 0.035);
}

* {
    scrollbar-color: #c8c8c3 transparent;
}

html,
body {
    color: var(--text-primary);
    background: var(--bg-app);
    font-family: var(--font-main);
}

body {
    background: var(--bg-app) !important;
}

button,
input,
textarea,
select {
    font: inherit;
}

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

/* Shell */
.main-header {
    position: relative;
    z-index: 100;
    display: grid;
    grid-template-columns: minmax(210px, 1fr) auto minmax(210px, 1fr);
    align-items: center;
    width: 100%;
    height: 64px;
    min-height: 64px;
    padding: 0 18px;
    border-bottom: 1px solid var(--border-subtle);
    background: rgba(255, 255, 255, 0.92);
    color: var(--text-primary);
    box-shadow: none;
    backdrop-filter: blur(14px);
}

.header-logo {
    gap: 10px;
    color: var(--text-primary);
}

#sidebar-toggle {
    display: grid;
    width: 36px;
    height: 36px;
    margin: 0 2px 0 0;
    place-items: center;
    border: 0;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
}

#sidebar-toggle:hover {
    background: var(--bg-element);
    color: var(--text-primary);
}

#sidebar-toggle svg {
    width: 19px;
    height: 19px;
}

.brand-mark,
.login-brand-mark {
    display: grid;
    width: 32px;
    height: 32px;
    place-items: center;
    border: 0;
    border-radius: 9px;
    background: var(--accent-color);
    color: #fff;
    font-family: var(--font-main);
    font-size: 1rem;
    font-weight: 650;
    box-shadow: none;
}

.brand-copy {
    gap: 0;
}

.brand-title {
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.95rem;
    font-weight: 650;
    line-height: 1.15;
    letter-spacing: -0.015em;
}

.brand-kicker {
    margin-top: 2px;
    color: var(--text-tertiary);
    font-size: 0.62rem;
    font-weight: 500;
    line-height: 1.1;
    letter-spacing: 0.02em;
    text-transform: none;
}

.nav-tabs {
    justify-self: center;
    gap: 2px;
    padding: 3px;
    border: 0;
    border-radius: 10px;
    background: var(--bg-element);
    box-shadow: none;
}

.nav-tab {
    min-height: 34px;
    padding: 7px 14px;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 550;
}

.nav-tab:hover {
    color: var(--text-primary);
}

.nav-tab.active {
    background: #fff;
    color: var(--text-primary);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

.header-actions {
    justify-self: end;
    gap: 6px !important;
}

.header-actions .ai-config-btn,
.header-actions .user-icon {
    display: grid;
    width: 36px;
    height: 36px;
    place-items: center;
    border: 1px solid transparent;
    border-radius: 50%;
    background: transparent;
    color: var(--text-secondary);
    box-shadow: none;
}

.header-actions .ai-config-btn:hover,
.header-actions .user-icon:hover {
    border-color: transparent;
    background: var(--bg-element);
    color: var(--text-primary);
    transform: none;
}

.header-actions .user-icon {
    background: #2f3133;
    color: #fff;
    font-size: 0.8rem;
    font-weight: 600;
}

.ai-config-btn .status-dot {
    right: 4px;
    bottom: 3px;
    width: 7px;
    height: 7px;
    border: 2px solid #fff;
    background: var(--accent-color);
    box-shadow: none;
}

.app-container,
.main-content {
    min-height: 0;
    background: var(--bg-app);
}

/* Menus */
.dropdown-menu,
.ai-menu {
    top: calc(100% + 8px);
    min-width: 230px;
    padding: 6px;
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
    backdrop-filter: blur(16px);
}

.dropdown-item,
.ai-menu .dropdown-item {
    min-height: 36px;
    padding: 8px 10px;
    border-radius: 7px;
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 500;
}

.dropdown-item:hover,
.ai-menu .dropdown-item:hover {
    background: var(--bg-element);
    color: var(--text-primary);
}

.ai-menu .dropdown-item.active {
    background: #edf6f3;
    color: var(--accent-color);
}

.menu-section-label {
    padding: 8px 10px 4px;
    color: var(--text-tertiary);
    font-size: 0.65rem;
    font-weight: 650;
    letter-spacing: 0.08em;
}

.menu-divider {
    margin: 5px 4px;
    background: var(--border-subtle);
}

/* Sidebar */
.sidebar {
    top: 64px;
    bottom: 0;
    width: 280px;
    padding: 16px 12px;
    border-right: 1px solid var(--border-subtle);
    background: #f1f1ee;
    box-shadow: none;
}

.sidebar.collapsed {
    width: 0;
    padding: 0;
    border-right: 0;
}

.sidebar-heading {
    padding: 6px 8px 10px;
    color: var(--text-secondary);
    font-size: 0.72rem;
    font-weight: 650;
    letter-spacing: 0.02em;
    text-transform: none;
}

.sidebar-heading small {
    display: grid;
    min-width: 20px;
    height: 20px;
    place-items: center;
    border-radius: 6px;
    background: #deded9;
    color: var(--text-secondary);
    font-size: 0.67rem;
}

.new-chat-btn {
    min-height: 40px;
    margin-bottom: 14px;
    padding: 8px 10px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--text-primary);
    font-size: 0.82rem;
    font-weight: 600;
    box-shadow: none;
}

.new-chat-btn:hover {
    border-color: #bdbdb7;
    background: #fafafa;
    color: var(--text-primary);
    transform: none;
}

.context-item {
    min-height: 38px;
    padding: 8px 8px 8px 10px;
    border: 0;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.context-item:hover,
.context-item.active {
    background: #e6e6e1;
    color: var(--text-primary);
}

.sidebar-backdrop {
    background: rgba(32, 33, 35, 0.25);
    backdrop-filter: blur(2px);
}

/* Feed */
#feed-view {
    padding: 32px clamp(20px, 4vw, 56px) 48px;
}

.feed-toolbar {
    max-width: 1280px;
    width: 100%;
    margin: 0 auto 16px;
    align-items: flex-end;
}

.feed-heading h1,
.authors-title {
    margin: 2px 0 0;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: clamp(1.8rem, 3vw, 2.35rem);
    font-weight: 620;
    line-height: 1.1;
    letter-spacing: -0.035em;
}

.view-kicker,
.author-card-kicker,
.login-eyebrow {
    color: var(--text-tertiary);
    font-size: 0.68rem;
    font-weight: 650;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.refresh-btn {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--text-secondary);
    box-shadow: none;
}

.refresh-btn:hover {
    border-color: var(--border-strong);
    background: #fff;
    color: var(--text-primary);
    transform: none;
}

.filter-bar {
    max-width: 1280px;
    width: 100%;
    margin: 0 auto 18px;
    padding: 0 0 2px;
    gap: 6px;
}

.filter-chip {
    min-height: 32px;
    padding: 6px 11px;
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.76rem;
    font-weight: 550;
}

.filter-chip:hover {
    border-color: var(--border-strong);
    background: #fff;
    color: var(--text-primary);
}

.filter-chip.active {
    border-color: #2f3133;
    background: #2f3133;
    color: #fff;
}

.feed-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    max-width: 1280px;
    width: 100%;
    margin: 0 auto;
}

.feed-card,
.feed-card[class*="gradient-"] {
    min-height: 245px;
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    background: var(--bg-card) !important;
    color: var(--text-primary);
    box-shadow: none;
    transform: none;
}

.feed-card::before,
.feed-card::after,
.feed-card.no-image::before,
.feed-card[class*="gradient-"]::before {
    display: none;
    content: none;
}

.feed-card:hover {
    border-color: #c9c9c4;
    background: #fff !important;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.055);
    transform: translateY(-1px);
}

.feed-card-media {
    padding: 8px 8px 0;
}

.feed-card-image {
    width: 100%;
    aspect-ratio: 16 / 8.5;
    max-height: 210px;
    border-radius: 9px;
    object-fit: cover;
    filter: saturate(0.82) contrast(0.96);
    transform: none;
}

.feed-card:hover .feed-card-image {
    transform: none;
}

.card-content {
    gap: 10px;
    padding: 18px;
}

.feed-meta,
.feed-card[class*="gradient-"] .feed-meta {
    color: var(--text-tertiary);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-shadow: none;
}

.feed-source {
    padding: 0;
    background: transparent;
    color: var(--text-tertiary);
}

.feed-title,
.feed-card[class*="gradient-"] .feed-title {
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 1.05rem;
    font-weight: 650;
    line-height: 1.32;
    letter-spacing: -0.018em;
    text-shadow: none;
}

.feed-desc,
.feed-card[class*="gradient-"] .feed-desc {
    color: var(--text-secondary);
    font-size: 0.82rem;
    line-height: 1.55;
    text-shadow: none;
}

.load-more-btn {
    min-height: 38px;
    padding: 8px 16px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--text-primary);
    font-size: 0.8rem;
    font-weight: 600;
}

.load-more-btn:hover {
    background: var(--bg-element);
    color: var(--text-primary);
}

/* Authors */
.authors-view {
    background: var(--bg-app);
}

.authors-hero {
    padding: 32px clamp(20px, 4vw, 56px) 18px;
    border-bottom: 0;
    background: transparent;
}

.authors-hero-row,
.authors-scroll {
    max-width: 1280px;
    margin-right: auto;
    margin-left: auto;
}

.authors-hero-row {
    align-items: end;
}

.authors-count {
    margin-top: 7px;
    color: var(--text-secondary);
    font-size: 0.78rem;
}

.authors-search {
    width: min(340px, 100%);
    height: 38px;
    padding: 8px 12px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--text-primary);
    box-shadow: none;
}

.authors-search:focus {
    border-color: var(--border-strong);
    box-shadow: 0 0 0 3px rgba(13, 124, 102, 0.1);
}

.authors-scroll {
    padding: 0 clamp(20px, 4vw, 56px) 48px;
}

.authors-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.author-card,
.author-card.featured {
    grid-column: auto;
    min-height: 230px;
    border: 1px solid var(--border-subtle);
    border-radius: 14px;
    background: #fff;
    color: var(--text-primary);
    box-shadow: none;
}

.author-card::before,
.author-card.featured::before {
    display: none;
}

.author-card:hover {
    border-color: #c9c9c4;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.055);
    transform: translateY(-1px);
}

.author-card-body {
    padding: 20px;
}

.author-card-title {
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 1.1rem;
    font-weight: 650;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.author-date,
.author-excerpt,
.author-status {
    color: var(--text-secondary);
}

.author-excerpt {
    font-size: 0.82rem;
    line-height: 1.6;
}

.author-card-footer {
    padding: 12px 20px;
    border-color: var(--border-subtle);
    background: transparent;
}

.author-name {
    color: var(--text-primary);
}

.author-open {
    color: var(--accent-color);
}

/* Definition and conversation */
#definition-view {
    max-width: 760px;
    padding: 72px 24px 48px;
}

#definition-view h1 {
    color: var(--text-primary) !important;
    font-family: var(--font-main) !important;
    font-size: clamp(2rem, 5vw, 3rem) !important;
    font-weight: 620 !important;
    letter-spacing: -0.045em !important;
}

.input-group {
    margin-bottom: 18px;
}

.input-group label {
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0;
    text-transform: none;
}

.styled-input,
.styled-textarea,
select.styled-input {
    padding: 11px 12px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--text-primary);
    box-shadow: none;
}

.styled-input:focus,
.styled-textarea:focus,
select.styled-input:focus {
    border-color: #aeadA7;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(13, 124, 102, 0.1);
}

.styled-textarea {
    min-height: 132px;
}

.primary-btn,
.fab-btn {
    min-height: 40px;
    padding: 9px 15px;
    border: 1px solid var(--accent-color);
    border-radius: var(--radius-sm);
    background: var(--accent-color);
    color: #fff;
    font-size: 0.82rem;
    font-weight: 600;
    box-shadow: none;
}

.primary-btn::after {
    display: none;
}

.primary-btn:hover,
.fab-btn:hover {
    border-color: var(--accent-hover);
    background: var(--accent-hover);
    color: #fff;
    box-shadow: none;
    transform: none;
}

.chat-header {
    min-height: 48px;
    padding: 10px 18px;
    border-color: var(--border-subtle);
    background: rgba(247, 247, 245, 0.92);
    color: var(--text-secondary);
    font-size: 0.76rem;
    box-shadow: none;
    backdrop-filter: blur(12px);
}

.chat-history {
    padding: 22px 0 30px;
    background: var(--bg-app);
}

.message,
.message.ai {
    padding: 8px 0;
    border: 0;
    background: transparent;
}

.message-content {
    max-width: 820px;
    gap: 12px;
    padding: 0 20px;
    color: var(--text-primary);
    font-size: 0.92rem;
    line-height: 1.7;
}

.message-content > div:last-child,
.message.user .message-content > div:last-child {
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

.message.user .message-content > div:last-child {
    padding: 10px 14px;
    border-radius: 14px;
    background: #ecece8;
}

.avatar {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    font-size: 0.72rem;
    box-shadow: none;
}

.avatar.ai {
    background: var(--accent-color);
    color: #fff;
    box-shadow: none;
}

.avatar.user {
    background: #2f3133;
}

.bubbles-container {
    gap: 7px;
}

.bubble {
    min-height: 36px;
    padding: 8px 11px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 550;
}

.bubble:hover,
.bubble.highlight {
    border-color: #bcbcb6;
    background: #fff;
    color: var(--text-primary);
    box-shadow: none;
}

.chat-input-area {
    padding: 12px 18px 22px;
    background: linear-gradient(180deg, rgba(247, 247, 245, 0), var(--bg-app) 28%);
}

.input-wrapper {
    max-width: 820px;
    padding: 5px 5px 5px 16px;
    border: 1px solid var(--border-strong);
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.06);
}

.input-wrapper:focus-within {
    border-color: #aeadA7;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(13, 124, 102, 0.1), 0 4px 18px rgba(0, 0, 0, 0.06);
}

.chat-input {
    color: var(--text-primary);
}

.chat-input::placeholder {
    color: var(--text-tertiary);
}

.send-btn {
    width: 38px;
    height: 38px;
    border-radius: 11px;
    background: #2f3133;
    color: #fff;
}

.send-btn:hover {
    background: var(--accent-color);
    color: #fff;
    transform: none;
}

.typing-indicator span {
    background: var(--accent-color);
}

/* Modals and reading */
.modal-overlay {
    padding: 22px;
    background: rgba(32, 33, 35, 0.46);
    backdrop-filter: blur(4px);
}

.preview-modal {
    width: min(900px, 94vw);
    max-height: 92dvh;
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.2);
}

.preview-header,
.preview-footer {
    border-color: var(--border-subtle);
    background: rgba(255, 255, 255, 0.96);
}

.preview-header {
    min-height: 52px;
    padding: 12px 18px;
    border-radius: 16px 16px 0 0;
}

.preview-footer {
    padding: 12px 18px;
    border-radius: 0 0 16px 16px;
}

.preview-content {
    padding: 28px clamp(24px, 5vw, 54px) 38px;
}

.preview-title {
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: clamp(1.8rem, 4vw, 2.65rem);
    font-weight: 620;
    line-height: 1.12;
    letter-spacing: -0.04em;
}

#pv-body {
    max-width: 70ch;
    color: #3f4144;
    font-family: var(--font-main);
    font-size: 1rem;
    line-height: 1.78;
}

#pv-body h1,
#pv-body h2,
#pv-body h3,
#pv-body h4 {
    color: var(--text-primary);
    font-family: var(--font-main);
}

#pv-body h3,
#pv-body a {
    color: var(--accent-color);
}

.close-modal {
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary);
}

.close-modal:hover {
    background: var(--bg-element);
    color: var(--text-primary);
    transform: none;
}

/* Login */
#login-view {
    align-items: center;
    justify-content: center;
    min-height: 100dvh;
    padding: 24px;
    background: var(--bg-app) !important;
}

.login-card {
    width: min(400px, 100%);
    padding: 34px;
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    background: #fff;
    box-shadow: var(--shadow-soft);
    text-align: left;
}

.login-brand-mark {
    width: 38px;
    height: 38px;
    margin-bottom: 22px;
    font-size: 1.1rem;
}

.login-title {
    margin: 5px 0 6px;
    background: none;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 1.75rem;
    font-weight: 650;
    letter-spacing: -0.04em;
    -webkit-text-fill-color: currentColor;
}

.login-subtitle {
    margin-bottom: 24px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.login-error {
    border-color: #f0c9c5;
    background: #fff4f2;
    color: #a33f34;
}

/* Admin and secondary surfaces */
.rss-modal-shell,
.rss-modal-content,
.rss-item,
.rss-add-panel,
.admin-toolbar,
.user-row,
.admin-sidebar {
    color: var(--text-primary);
}

.admin-sidebar,
.rss-modal-content {
    background: #f5f5f2;
}

.rss-item,
.rss-add-panel,
.user-row,
.admin-toolbar {
    border-color: var(--border-subtle);
    background: #fff;
}

.rss-tabs {
    border-color: var(--border-subtle);
}

.rss-tab.active {
    border-color: var(--text-primary);
    color: var(--text-primary);
}

.rss-url-input {
    border-color: var(--border-subtle);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--text-primary);
}

.secondary-btn,
.icon-btn {
    border-color: var(--border-subtle);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--text-secondary);
    box-shadow: none;
}

.secondary-btn:hover,
.icon-btn:hover {
    background: var(--bg-element);
    color: var(--text-primary);
}

@media (max-width: 1100px) {
    .feed-grid,
    .authors-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .main-header {
        grid-template-columns: minmax(170px, 1fr) auto minmax(110px, 1fr);
    }
}

@media (max-width: 768px) {
    body {
        background: var(--bg-app) !important;
    }

    .main-header {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        grid-template-areas:
            "brand actions"
            "nav nav";
        gap: 8px;
        height: 108px;
        min-height: 108px;
        padding: max(8px, env(safe-area-inset-top)) 12px 8px;
        background: rgba(255, 255, 255, 0.96);
    }

    .header-logo {
        grid-area: brand;
        gap: 7px;
    }

    #sidebar-toggle,
    .header-actions .ai-config-btn,
    .header-actions .user-icon {
        width: 34px;
        height: 34px;
    }

    .brand-mark {
        width: 32px;
        height: 32px;
    }

    .brand-kicker {
        display: none;
    }

    .header-actions {
        grid-area: actions;
    }

    .nav-tabs {
        grid-area: nav;
        width: 100%;
    }

    .nav-tab {
        flex: 1 1 0;
        min-width: 0;
        min-height: 34px;
        padding: 6px 5px;
        font-size: 0.75rem;
    }

    .dropdown-menu,
    .ai-menu {
        position: fixed;
        top: calc(max(8px, env(safe-area-inset-top)) + 42px);
        right: 10px;
        width: min(310px, calc(100vw - 20px));
        max-height: calc(100dvh - 62px);
    }

    .sidebar {
        top: 108px;
        width: min(86vw, 330px);
        padding: 16px 12px max(20px, env(safe-area-inset-bottom));
        background: #f1f1ee;
        box-shadow: 12px 0 40px rgba(0, 0, 0, 0.12);
    }

    .sidebar.collapsed {
        width: min(86vw, 330px);
        padding: 16px 12px;
        transform: translateX(-105%);
    }

    .sidebar-backdrop {
        inset: 108px 0 0;
    }

    #feed-view {
        padding: 24px 14px calc(30px + env(safe-area-inset-bottom));
    }

    .feed-toolbar {
        align-items: end;
        margin-bottom: 14px;
    }

    .feed-heading h1,
    .authors-title {
        font-size: 1.85rem;
    }

    .filter-bar {
        margin: 0 -14px 16px;
        padding: 0 14px 3px;
    }

    .filter-chip {
        min-height: 32px;
        padding: 6px 10px;
    }

    .feed-grid,
    .authors-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .feed-card,
    .feed-card[class*="gradient-"] {
        min-height: 0;
        border-radius: 12px;
    }

    .feed-card-media {
        padding: 7px 7px 0;
    }

    .feed-card-image {
        border-radius: 8px;
    }

    .card-content {
        padding: 15px;
    }

    .feed-title,
    .feed-card[class*="gradient-"] .feed-title {
        font-size: 1rem;
        line-height: 1.34;
    }

    .feed-desc,
    .feed-card[class*="gradient-"] .feed-desc {
        font-size: 0.8rem;
        line-height: 1.5;
    }

    .authors-hero {
        padding: 24px 14px 16px;
    }

    .authors-hero-row {
        align-items: stretch;
        gap: 14px;
    }

    .authors-search {
        width: 100%;
        font-size: 16px;
    }

    .authors-scroll {
        padding: 0 14px calc(30px + env(safe-area-inset-bottom));
    }

    .author-card,
    .author-card.featured {
        min-height: 210px;
        border-radius: 12px;
    }

    #definition-view {
        padding: 44px 18px calc(32px + env(safe-area-inset-bottom));
    }

    #definition-view h1 {
        margin-bottom: 24px !important;
        font-size: 2rem !important;
    }

    #definition-view .input-group > div {
        flex-direction: column;
    }

    #definition-view .input-group .primary-btn {
        width: 100%;
        align-self: stretch !important;
    }

    .styled-input,
    .styled-textarea,
    select.styled-input,
    .chat-input {
        font-size: 16px;
    }

    .chat-header {
        min-height: 46px;
        padding: 8px 12px;
    }

    .chat-history {
        padding: 12px 0 18px;
    }

    .message-content {
        gap: 9px;
        padding: 0 12px;
        font-size: 0.9rem;
    }

    .avatar {
        width: 28px;
        height: 28px;
    }

    .bubbles-container {
        flex-direction: column;
    }

    .bubble {
        width: 100%;
    }

    .chat-input-area {
        padding: 10px 10px max(12px, env(safe-area-inset-bottom));
    }

    .input-wrapper {
        padding: 4px 4px 4px 13px;
        border-radius: 14px;
    }

    .modal-overlay {
        align-items: flex-end;
        padding: 0;
    }

    .preview-modal,
    #rss-modal .preview-modal {
        width: 100%;
        max-width: 100%;
        max-height: 96dvh;
        border-radius: 16px 16px 0 0;
    }

    .preview-header {
        min-height: 52px;
        padding: 12px 16px;
        border-radius: 16px 16px 0 0;
    }

    .preview-content {
        padding: 22px 18px 28px;
    }

    .preview-title {
        font-size: 1.75rem;
    }

    #pv-body {
        font-size: 0.98rem;
        line-height: 1.72;
    }

    .preview-footer {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px !important;
        padding: 10px 10px max(10px, env(safe-area-inset-bottom));
        border-radius: 0;
    }

    #preview-actions .fab-btn {
        width: 100%;
        min-width: 0;
        justify-content: center;
    }

    #login-view {
        align-items: center;
        padding: 18px;
    }

    .login-card {
        width: min(400px, 100%);
        padding: 28px 22px;
        border-width: 1px;
        border-radius: 14px;
    }
}

@media (max-width: 380px) {
    .header-logo .brand-mark {
        display: none;
    }

    .preview-footer {
        grid-template-columns: 1fr;
    }
}

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