/* ========================================
   TweetVid UI System
   Light monolith redesign
   ======================================== */

:root {
    --bg-canvas: #f2ede3;
    --bg-shell: #faf7f1;
    --bg-surface: #fffdf8;
    --bg-surface-muted: #f3ede2;
    --bg-surface-strong: #e8dfd2;
    --bg-sidebar: #ede6da;
    --bg-soft: #e5edf6;
    --bg-ink: #111c27;

    --text-primary: #1a2430;
    --text-secondary: #586170;
    --text-muted: #858d9b;
    --text-inverse: #f8fbff;

    --border: rgba(26, 36, 48, 0.09);
    --border-strong: rgba(26, 36, 48, 0.16);

    --accent: #0f6bff;
    --accent-hover: #0b59d7;
    --accent-soft: rgba(15, 107, 255, 0.1);

    --success: #0f8a61;
    --success-soft: rgba(15, 138, 97, 0.13);
    --warning: #b7791f;
    --warning-soft: rgba(183, 121, 31, 0.15);
    --error: #c84c4c;
    --error-soft: rgba(200, 76, 76, 0.13);

    --shadow-soft: 0 8px 20px rgba(17, 28, 39, 0.05);
    --shadow-card: 0 18px 36px rgba(17, 28, 39, 0.07);
    --shadow-shell: 0 26px 68px rgba(17, 28, 39, 0.09);

    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 999px;

    --container: 1640px;
    --transition-fast: 150ms ease;
    --transition-base: 240ms ease;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text-primary);
    overflow-x: clip;
    background:
        radial-gradient(circle at top left, rgba(15, 107, 255, 0.08), transparent 24%),
        linear-gradient(180deg, #faf7f1 0%, #f2ede3 100%);
}

a {
    color: inherit;
}

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

button {
    border: 0;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(18px);
    background: rgba(250, 247, 241, 0.9);
    border-bottom: 1px solid rgba(26, 36, 48, 0.07);
}

.topbar-inner {
    width: 100%;
    max-width: none;
    margin: 0;
    padding-left: 0;
    padding-right: 0;
    min-height: 72px;
    display: grid;
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: center;
    gap: 28px;
    min-width: 0;
}

.main-content {
    width: 100%;
    max-width: none;
    margin: 0;
    padding-left: 24px;
    padding-right: 24px;
}

.brand-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    min-height: 52px;
}

.brand-link-mobile {
    min-width: 0;
    width: 236px;
    padding-left: 26px;
    padding-right: 14px;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    gap: 13px;
    padding: 0;
    color: var(--bg-ink);
}

.brand-mark::before {
    content: "";
    display: inline-flex;
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    border: 1px solid rgba(17, 28, 39, 0.06);
    border-radius: 14px;
    background: rgba(255, 253, 248, 0.9) url("/static/logo-mark.png") center / 84% 84% no-repeat;
    box-shadow: 0 14px 30px rgba(17, 28, 39, 0.08);
}

.brand-wordmark {
    font-family: inherit;
    font-size: 1.22rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    text-transform: none;
    color: var(--bg-ink);
}

.brand-copy {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.brand-name {
    font-family: "Outfit", "Inter", sans-serif;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.brand-tag {
    font-size: 0.68rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.18em;
}

.nav-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    min-width: 0;
    padding-right: 24px;
    flex-wrap: wrap;
}

.topbar-auth-actions,
.topbar-account-menu-desktop {
    display: inline-flex;
    align-items: center;
}

.topbar-auth-actions {
    gap: 12px;
}

.topbar-user-meta {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    min-width: 0;
    max-width: min(100%, 420px);
    padding: 6px 14px;
    border: 1px solid rgba(26, 36, 48, 0.08);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.74);
    box-shadow: 0 10px 24px rgba(17, 28, 39, 0.04);
    color: var(--text-secondary);
    font-size: 0.86rem;
}

.topbar-user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 28px;
    background: rgba(17, 28, 39, 0.08);
    color: var(--bg-ink);
    font-size: 0.78rem;
    font-weight: 800;
}

.user-name {
    display: inline-block;
    min-width: 0;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: right;
}

.nav-mobile-toggle {
    display: none;
    width: 46px;
    height: 46px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.82);
    color: var(--text-secondary);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.nav-mobile-toggle:hover {
    transform: translateY(-1px);
    border-color: var(--border-strong);
}

.nav-mobile-toggle svg {
    width: 20px;
    height: 20px;
}

.nav-mobile-toggle[aria-expanded="true"] {
    background: var(--bg-ink);
    color: var(--text-inverse);
    border-color: var(--bg-ink);
}

.nav-mobile-panel {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: max-height var(--transition-base), opacity var(--transition-base), transform var(--transition-base), padding-bottom var(--transition-base);
    will-change: max-height, opacity, transform;
}

.nav-mobile-panel.open {
    max-height: 80vh;
    padding-bottom: 16px;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.nav-mobile-links {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    padding: 14px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-card);
    border: 1px solid rgba(26, 36, 48, 0.08);
}

.nav-mobile-links .nav-link,
.nav-mobile-links .btn {
    width: auto;
}

.nav-mobile-account-card {
    display: grid;
    gap: 14px;
    width: 100%;
    padding: 16px;
    border-radius: 16px;
    background: rgba(17, 28, 39, 0.04);
    border: 1px solid rgba(26, 36, 48, 0.08);
}

.nav-mobile-account-copy {
    min-width: 0;
}

.nav-mobile-account-label {
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.nav-mobile-account-email {
    margin-top: 6px;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-primary);
    font-size: 0.96rem;
    font-weight: 600;
}

.nav-mobile-account-actions {
    display: grid;
    gap: 10px;
}

.main-content {
    padding-top: 28px;
    padding-bottom: 44px;
    min-width: 0;
}

.app-layout {
    width: 100%;
    max-width: none;
    margin: 0;
    display: grid;
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 0;
    padding: 0 0 0;
    min-width: 0;
}

.app-sidebar {
    display: block;
}

.sidebar-panel {
    position: sticky;
    top: 72px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    min-height: calc(100vh - 72px);
    padding: 18px 14px;
    background: var(--bg-sidebar);
    border-radius: 0;
    border-top: 0;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0 8px;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-height: 44px;
    padding: 9px 11px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.92rem;
    font-weight: 500;
    transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.nav-link:hover {
    background: rgba(23, 25, 29, 0.04);
    color: var(--text-primary);
}

.nav-link.active {
    background: var(--bg-ink);
    color: var(--text-inverse);
    box-shadow: 0 10px 18px rgba(17, 28, 39, 0.12);
}

.nav-link-icon {
    width: 18px;
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.9;
}

.sidebar-footer {
    margin-top: auto;
}

.sidebar-user-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 14px;
    background: rgba(255, 255, 255, 0.56);
    border-radius: 12px;
}

.sidebar-user-label {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.sidebar-user-email {
    margin-top: 4px;
    font-size: 0.8rem;
    color: var(--text-primary);
    line-height: 1.45;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-footer-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sidebar-footer-actions .btn-primary {
    background: var(--bg-ink);
    border-color: var(--bg-ink);
    color: var(--text-inverse);
    box-shadow: 0 12px 24px rgba(17, 28, 39, 0.14);
}

.sidebar-footer-actions .btn-primary:hover {
    background: #1d2833;
    border-color: #1d2833;
}

.page-shell,
.dashboard-container,
.create-container,
.billing-container,
.templates-container {
    width: 100%;
    max-width: var(--page-rail);
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 26px;
    min-width: 0;
}

.page-header,
.dashboard-header,
.workspace-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
}

.workspace-header-copy {
    max-width: 720px;
}

.workspace-header-actions,
.page-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    min-width: 0;
}

.ui-hidden {
    display: none !important;
}

.ui-hidden-inline {
    display: none !important;
}

.btn-block {
    width: 100%;
}

.btn-block-center {
    width: 100%;
    justify-content: center;
}

.grid-span-full {
    grid-column: 1 / -1;
}

.is-disabled-link {
    pointer-events: none;
    opacity: 0.55;
}

.is-disabled-control {
    opacity: 0.55;
    cursor: not-allowed;
}

.stacked-actions {
    flex-direction: column;
    align-items: stretch;
    min-width: 220px;
    max-width: 100%;
}

.workspace-micro-note,
.builder-meta-kicker {
    color: var(--text-muted);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.builder-meta-copy {
    margin-top: 8px;
    color: var(--text-secondary);
    max-width: 28ch;
    font-size: 0.92rem;
    line-height: 1.65;
}

.dashboard-title,
.page-title,
.billing-title,
.tpl-title {
    margin: 6px 0 0;
    font-family: "Outfit", "Inter", sans-serif;
    font-size: clamp(2.1rem, 3.7vw, 3.5rem);
    line-height: 0.98;
    letter-spacing: -0.06em;
    font-weight: 800;
    color: var(--text-primary);
}

.dashboard-subtitle,
.page-subtitle,
.billing-subtitle {
    margin: 12px 0 0;
    max-width: 700px;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.62;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-decoration: none;
}

.back-link:hover {
    color: var(--text-primary);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 42px;
    padding: 0 16px;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--bg-ink);
    color: var(--text-inverse);
    box-shadow: 0 12px 24px rgba(17, 28, 39, 0.16);
}

.btn-primary:hover {
    background: #1d2833;
}

.btn-secondary {
    background: rgba(23, 25, 29, 0.04);
    color: var(--text-primary);
}

.btn-sm {
    min-height: 36px;
    padding: 0 12px;
    font-size: 0.8rem;
}

.btn-lg {
    min-height: 50px;
    padding: 0 20px;
    font-size: 0.95rem;
}

.hero-panel,
.section-card,
.stats-container,
.filters-bar,
.form-section,
.usage-panel,
.auth-card,
.tweet-connect,
.tweet-empty,
.tweet-error,
.tweet-session-banner,
.social-banner,
.card-panel,
.tpl-card,
.tpl-form {
    background: transparent;
    border: 0;
    box-shadow: none;
}

.hero-panel,
.section-card,
.stats-container,
.form-section,
.card-panel,
.tpl-form,
.auth-card,
.tweet-connect,
.tweet-empty,
.tweet-error,
.tweet-session-banner,
.social-banner {
    border-radius: 0;
    padding: 0;
}

@media (max-width: 1120px) {
    .topbar-inner {
        grid-template-columns: minmax(0, 1fr) auto;
        gap: 16px;
        padding-left: 18px;
        padding-right: 18px;
    }

    .brand-link-mobile {
        width: auto;
        padding-left: 0;
        padding-right: 0;
        max-width: calc(100% - 58px);
        overflow: hidden;
    }

    .nav-actions {
        padding-right: 0;
        min-width: 0;
        gap: 10px;
        justify-self: end;
        width: auto;
        flex-wrap: nowrap;
    }

    .topbar-account-menu-desktop,
    .topbar-auth-actions-desktop {
        display: none;
    }

    .nav-mobile-links {
        flex-direction: column;
        align-items: stretch;
    }

    .nav-mobile-links .nav-link,
    .nav-mobile-links .btn {
        width: 100%;
        justify-content: flex-start;
    }

    .app-layout {
        grid-template-columns: 1fr;
        padding-top: 12px;
    }

    .app-sidebar {
        display: none;
    }

    .nav-mobile-toggle {
        display: inline-flex;
        flex: 0 0 46px;
    }

    .main-content {
        padding-top: 20px;
    }

    .topbar-user-meta {
        max-width: 100%;
    }

    .sidebar-user-email,
    .user-name {
        max-width: 100%;
    }
}

@media (max-width: 720px) {
    .topbar-inner,
    .main-content,
    .nav-mobile-panel {
        padding-left: 16px;
        padding-right: 16px;
    }

    .topbar-inner {
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: center;
        gap: 10px;
    }

    .brand-link-mobile {
        width: auto;
        min-width: 0;
        padding-left: 0;
        padding-right: 0;
    }

    .brand-link {
        gap: 10px;
    }

    .topbar .brand-copy {
        display: none;
    }

    .nav-actions {
        width: auto;
        justify-content: flex-end;
        gap: 8px;
        flex-wrap: nowrap;
    }

    .app-layout {
        padding-left: 16px;
        padding-right: 16px;
        gap: 18px;
    }

    .nav-mobile-links {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .nav-mobile-links .nav-link,
    .nav-mobile-links .btn {
        width: 100%;
        justify-content: flex-start;
    }

    .workspace-header,
    .page-header,
    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .dashboard-title,
    .page-title,
    .billing-title,
    .tpl-title {
        font-size: clamp(2.1rem, 10vw, 3.1rem);
    }

    .workspace-header-actions,
    .page-actions {
        width: 100%;
    }

    .workspace-header-actions .btn,
    .page-actions .btn,
    .stacked-actions .btn {
        width: 100%;
    }

    .stacked-actions {
        min-width: 0;
        width: 100%;
    }

}

@media (max-width: 560px) {
    .topbar {
        backdrop-filter: blur(14px);
    }

    .topbar-inner {
        min-height: 64px;
        gap: 8px;
    }

    .brand-link-mobile {
        width: auto;
        max-width: 100%;
        gap: 10px;
        overflow: visible;
    }

    .nav-actions {
        width: auto;
        gap: 8px;
        justify-self: end;
    }

    .nav-mobile-toggle {
        width: 46px;
        height: 46px;
        flex: 0 0 46px;
    }

    .nav-mobile-panel {
        padding-top: 8px;
        padding-bottom: 12px;
    }

    .nav-actions {
        gap: 6px;
    }

    .main-content,
    .app-layout,
    .nav-mobile-panel {
        padding-left: 12px;
        padding-right: 12px;
    }

    .nav-mobile-links {
        display: grid;
        grid-template-columns: 1fr;
        gap: 10px;
        padding: 14px;
        border-radius: 18px;
    }

    .nav-mobile-links .nav-link {
        width: 100%;
        min-height: 52px;
        padding: 0 14px;
        border-radius: 14px;
        justify-content: flex-start;
        gap: 12px;
        flex-wrap: nowrap;
    }

    .nav-mobile-links .nav-link > span:not(.nav-link-icon):not(.lock-badge) {
        flex: 1 1 auto;
        min-width: 0;
    }

    .nav-mobile-links .lock-badge {
        margin-left: auto;
        flex: 0 0 auto;
    }

    .nav-mobile-links .btn {
        width: 100%;
        min-height: 50px;
    }
}