:root {
    --bg: #f3f7fb;
    --surface: #ffffff;
    --text: #122033;
    --muted: #5c6d80;
    --brand: #0b66b2;
    --brand-2: #084d86;
    --border: #d9e4f0;
    --danger-bg: #fdecec;
    --danger-text: #7f1d1d;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Fira Sans", "Segoe UI", sans-serif;
    color: var(--text);
    background: radial-gradient(circle at top right, #e4eef9 0%, var(--bg) 35%, var(--bg) 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    flex: 1;
    width: min(88vw, 1680px);
    margin: 0 auto;
    padding: 24px 16px 42px;
}

.container.min {
    width: min(620px, 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.topbar {
    background: linear-gradient(120deg, var(--brand), var(--brand-2));
    color: #fff;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.topbar-inner {
    width: min(88vw, 1680px);
    margin: 0 auto;
    padding: 8px 16px;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.brand-inline {
    display: flex;
    align-items: center;
    gap: 10px;
    height: 56px;
}

.brand-logo {
    width: auto;
    height: 98%;
    display: block;
}

.topnav {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topnav a,
.btn-link {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.92rem;
    background: transparent;
    border: 0;
    cursor: pointer;
    padding: 0;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 20px;
    box-shadow: 0 10px 26px rgba(6, 30, 56, 0.06);
}

.container.min .card {
    width: 100%;
}

.auth-shell {
    width: min(520px, 100%);
}

.auth-card {
    padding: 0;
    overflow: hidden;
}

.auth-brand-bar {
    background: linear-gradient(120deg, #0b66b2, #084d86);
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
    padding: 22px 20px;
    min-height: 120px;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.auth-brand-logo {
    width: 390px;
    max-width: 96%;
    height: auto;
    display: block;
    margin: 0 auto;
    transform: none;
}

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

.card + .card,
.card + .grid-2,
.grid-2 + .card {
    margin-top: 16px;
}

.grid-2 > .card,
.stats-grid > .card {
    margin-top: 0;
}

h1, h2 {
    margin: 0 0 10px;
}

.muted {
    margin: 0 0 12px;
    color: var(--muted);
    line-height: 1.5;
}

.form-grid {
    display: grid;
    gap: 12px;
}

label {
    display: grid;
    gap: 6px;
    font-weight: 600;
    font-size: 0.92rem;
}

input {
    width: 100%;
    border: 1px solid #c9d8e8;
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 0.95rem;
}

textarea,
select {
    width: 100%;
    border: 1px solid #c9d8e8;
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 0.95rem;
    font-family: inherit;
    background: #fff;
}

.btn-primary {
    border: 0;
    border-radius: 10px;
    background: var(--brand);
    color: #fff;
    cursor: pointer;
    padding: 10px 14px;
    font-weight: 700;
    font-size: 0.95rem;
}

.btn-primary.inline {
    display: inline-block;
    text-decoration: none;
}

.btn-secondary {
    border: 1px solid #bfd2e5;
    border-radius: 10px;
    background: #fff;
    color: #173652;
    cursor: pointer;
    padding: 10px 14px;
    font-weight: 700;
    font-size: 0.92rem;
}

.btn-secondary.small {
    padding: 6px 10px;
    font-size: 0.82rem;
}

.btn-danger {
    border: 1px solid #f1b5b5;
    border-radius: 10px;
    background: #fff5f5;
    color: #912828;
    cursor: pointer;
    padding: 8px 12px;
    font-weight: 700;
    font-size: 0.86rem;
}

.btn-danger.is-confirming {
    background: #d83a3a;
    border-color: #d83a3a;
    color: #fff;
}

.alert {
    padding: 10px 12px;
    border-radius: 10px;
    margin-bottom: 12px;
}

.alert-error {
    background: var(--danger-bg);
    color: var(--danger-text);
    border: 1px solid #f8c6c6;
}

.alert-success {
    background: #ebf8ef;
    color: #16542b;
    border: 1px solid #ccead4;
}

.error-box {
    border-radius: 10px;
    background: #0f172a;
    color: #e5e7eb;
    padding: 12px;
    overflow-x: auto;
}

.grid-2 {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (min-width: 761px) {
    .slides-admin-grid .slides-form-card {
        position: sticky;
        top: 12px;
        align-self: start;
        max-height: calc(100vh - 24px);
        overflow: auto;
    }
}

.stats-grid {
    margin-top: 16px;
    margin-bottom: 16px;
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stat-card {
    min-height: 120px;
}

.stat-label {
    color: #60748a;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 8px;
    font-weight: 700;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: #0a3f6c;
}

.quick-links {
    display: grid;
    gap: 8px;
}

.stack-list {
    display: grid;
    gap: 10px;
}

.stack-row {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    padding: 10px 12px;
    background: #f8fbff;
    border: 1px solid #e0eaf3;
    border-radius: 12px;
}

.stack-row.between {
    justify-content: space-between;
}

.tiny {
    font-size: 0.84rem;
}

.pill {
    padding: 4px 10px;
    border-radius: 999px;
    background: #edf5fc;
    border: 1px solid #d4e4f3;
    font-size: 0.8rem;
    color: #244a6a;
    font-weight: 700;
    white-space: nowrap;
}

.filter-row {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.filter-row select {
    flex: 1;
}

.row-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.row-actions form {
    margin: 0;
}

.share-link-row > div:first-child {
    min-width: 0;
    flex: 1 1 auto;
}

.share-link-row {
    align-items: flex-start;
}

.share-link-actions {
    flex: 0 0 auto;
    min-width: 140px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
}

.share-link-actions form {
    width: 100%;
}

.share-link-actions .btn-secondary,
.share-link-actions .btn-danger {
    width: 100%;
    justify-content: center;
}

.share-link-url {
    margin-top: 6px;
}

.share-link-url a {
    word-break: break-all;
    overflow-wrap: anywhere;
    display: inline-block;
    max-width: 100%;
}

.slides-list-row {
    align-items: flex-start;
}

.slides-list-main {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    min-width: 0;
    flex: 1 1 auto;
}

.slide-row-check {
    margin-top: 2px;
}

.slides-list-row > div:first-child {
    min-width: 0;
    flex: 1 1 auto;
}

.slides-list-meta {
    margin-top: 6px;
}

.slide-title-link {
    appearance: none;
    border: 0;
    background: transparent;
    color: #0d3556;
    font: inherit;
    font-weight: 800;
    padding: 0;
    margin: 0;
    cursor: pointer;
    text-align: left;
}

.slide-title-link:hover {
    text-decoration: underline;
}

.slides-list-actions {
    flex: 0 0 auto;
    min-width: 260px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    align-items: stretch;
}

.slides-list-actions form {
    margin: 0;
}

.slides-list-actions .btn-secondary,
.slides-list-actions .btn-danger {
    width: 100%;
    justify-content: center;
}

.slides-topbar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
}

.slides-topbar h1 {
    margin-bottom: 6px;
}

.slides-select-row {
    margin-bottom: 10px;
}

.bulk-form {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: end;
}

.form-inline {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.checkbox-row {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.checkbox-row input {
    width: auto;
}

.editor-toolbar {
    border: 1px solid #c9d8e8;
    border-radius: 10px;
    background: #fff;
    overflow: hidden;
}

.editor-toolbar-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 8px;
    border-bottom: 1px solid #e3edf7;
    background: #f6faff;
}

.editor-btn {
    border: 1px solid #bed1e4;
    background: #fff;
    color: #143a5a;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 700;
    padding: 5px 8px;
    cursor: pointer;
}

.editor-btn:hover {
    background: #ecf4fd;
}

.editor-toolbar textarea[data-rich-input] {
    border: 0;
    border-radius: 0;
    min-height: 170px;
}

.system-footer {
    border-top: 1px solid #dbe8f3;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(4px);
}

.system-footer-inner {
    width: min(88vw, 1680px);
    margin: 0 auto;
    padding: 10px 16px;
    color: #5f7488;
    font-size: 0.82rem;
    text-align: center;
}

.preview-modal[hidden] {
    display: none;
}

.preview-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
}

.preview-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(8, 20, 35, 0.55);
}

.preview-modal-dialog {
    position: relative;
    width: min(980px, calc(100vw - 32px));
    max-height: calc(100vh - 40px);
    margin: 20px auto;
    background: #fff;
    border-radius: 16px;
    border: 1px solid #d7e6f4;
    box-shadow: 0 24px 48px rgba(6, 24, 42, 0.28);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.studio-dialog {
    width: min(1280px, calc(100vw - 28px));
}

.preview-modal-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border-bottom: 1px solid #e3edf7;
    background: #f7fbff;
}

.preview-modal-body {
    padding: 14px;
    overflow: auto;
}

.studio-grid {
    display: grid;
    gap: 14px;
    grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.9fr);
    align-items: start;
}

.studio-preview-wrap,
.studio-controls-wrap {
    background: #fff;
}

.preview-slide {
    border: 1px solid #dce9f7;
    border-radius: 14px;
    padding: 16px;
    background: #fff;
    --type-accent: #0b66b2;
    --type-soft: #eef5fd;
    --type-text: #0d4f87;
    --list-check: #0b66b2;
}

.preview-head h3 {
    margin: 8px 0 8px;
    font-size: 1.35rem;
}

.preview-image {
    margin: 12px 0;
    border: 1px solid #d6e5f4;
    border-radius: 12px;
    overflow: hidden;
    background: #f8fbff;
    min-height: 180px;
    max-height: 340px;
}

.preview-image img {
    width: 100%;
    height: 100%;
}

.preview-image.fit-contain img { object-fit: contain; }
.preview-image.fit-cover img { object-fit: cover; }
.preview-image.pos-top img { object-position: top; }
.preview-image.pos-center img { object-position: center; }
.preview-image.pos-bottom img { object-position: bottom; }

.preview-content {
    line-height: 1.55;
}

.preview-content .text-sm {
    font-size: 0.9em;
}

.preview-content .text-lg {
    font-size: 1.2em;
}

.preview-content blockquote {
    margin: 0.9em 0;
    padding: 0.7em 0.95em;
    border-left: 4px solid var(--type-accent);
    background: rgba(11, 102, 178, 0.08);
    border-radius: 8px;
    font-style: italic;
}

.preview-content p.note {
    margin: 0.9em 0;
    padding: 0.7em 0.9em;
    border-radius: 10px;
    border: 1px solid #f1c9a4;
    background: #fff6ea;
    color: #8a4f1d;
}

.preview-content p.note strong {
    letter-spacing: 0.02em;
}

.preview-content ul,
.preview-content ol {
    list-style: none;
    margin: 0.72em 0 0.92em;
    padding: 0;
    display: inline-block;
    width: fit-content;
    max-width: 100%;
    text-align: left;
}

.preview-content li {
    position: relative;
    padding-left: 1.45em;
    margin: 0.34em 0;
    text-align: left;
}

.preview-content li::before {
    content: "\2713";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--list-check);
    font-weight: 800;
}

.preview-content::after {
    content: "";
    display: block;
    clear: both;
}

.preview-slide.layout-left .preview-image {
    float: left;
    width: min(44%, 420px);
    margin: 8px 16px 10px 0;
    min-height: 150px;
    max-height: 280px;
}

.preview-slide.layout-right .preview-image {
    float: right;
    width: min(44%, 420px);
    margin: 8px 0 10px 16px;
    min-height: 150px;
    max-height: 280px;
}

.preview-slide.variant-accent {
    border-left: 6px solid #0b66b2;
}

.preview-slide.variant-inverse {
    background: linear-gradient(150deg, #0c4f8e, #0f66b7);
    color: #fff;
    border-color: #0a5b9f;
}

.preview-slide.variant-inverse .preview-head h3,
.preview-slide.variant-inverse .muted,
.preview-slide.variant-inverse .preview-content h2,
.preview-slide.variant-inverse .preview-content h3 {
    color: #fff;
}

.preview-slide.variant-inverse-accent {
    background: linear-gradient(150deg, #0a457d, #0d5fa8);
    color: #fff;
    border-color: #0a5b9f;
    border-left: 8px solid #8ec5ff;
}

.preview-slide.variant-inverse-accent .preview-head h3,
.preview-slide.variant-inverse-accent .muted,
.preview-slide.variant-inverse-accent .preview-content h2,
.preview-slide.variant-inverse-accent .preview-content h3 {
    color: #fff;
}

.preview-slide.variant-inverse-accent .pill {
    background: rgba(142, 197, 255, 0.2);
    border-color: rgba(142, 197, 255, 0.52);
    color: #d9edff;
}

.preview-slide.variant-calm {
    background: linear-gradient(180deg, #f6fbff 0%, #eef6ff 100%);
    border-color: #c8ddf0;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.65);
}

.preview-slide.variant-calm .pill {
    background: #e6f1fc;
    border-color: #c3d9ee;
    color: #355978;
}

.preview-slide.type-standard .preview-head {
    padding-bottom: 8px;
    border-bottom: 1px dashed rgba(11, 102, 178, 0.28);
}

.preview-slide.type-section .preview-head {
    text-align: center;
    padding: 14px 6px 10px;
    border-bottom: 2px solid var(--type-accent);
}

.preview-slide.type-section .preview-head h3 {
    font-size: clamp(1.7rem, 2.8vw, 2.5rem);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.preview-slide.type-section .preview-content {
    max-width: 920px;
    margin: 14px auto 0;
    text-align: center;
}

.preview-slide.type-section .preview-image {
    max-height: 300px;
}

.preview-slide.type-case {
    border-left: 10px solid var(--type-accent);
}

.preview-slide.type-case .preview-head h3 {
    position: relative;
    padding-left: 80px;
}

.preview-slide.type-case .preview-head h3::before {
    content: "CASE";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.66rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--type-soft);
    border: 1px solid rgba(11, 102, 178, 0.3);
    color: var(--type-text);
}

.preview-slide.type-case .preview-content {
    background: var(--type-soft);
    border: 1px solid rgba(11, 102, 178, 0.24);
    border-radius: 12px;
    padding: 12px 14px;
}

.preview-slide.type-signal {
    border-top: 8px solid #e04f43;
}

.preview-slide.type-signal .preview-head h3 {
    display: flex;
    align-items: center;
    gap: 10px;
}

.preview-slide.type-signal .preview-head h3::before {
    content: "!";
    width: 24px;
    height: 24px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    font-weight: 800;
    background: #e04f43;
    color: #fff;
    flex: 0 0 auto;
}

.preview-slide.type-signal .preview-question {
    border-top-color: #e04f43;
    background: #fff2f1;
    border-color: #f3c6c2;
}

.preview-slide.type-start .preview-head {
    text-align: center;
    padding: 16px 12px;
    border: 1px dashed rgba(11, 102, 178, 0.32);
    border-radius: 12px;
    background: var(--type-soft);
}

.preview-slide.type-start .preview-head h3 {
    font-size: clamp(1.9rem, 3.1vw, 2.8rem);
}

.preview-slide.type-start .preview-content {
    text-align: center;
    font-size: 1.05rem;
}

.preview-slide.type-end .preview-head {
    text-align: center;
    padding-top: 4px;
}

.preview-slide.type-end .preview-head h3 {
    font-size: clamp(1.8rem, 2.9vw, 2.6rem);
}

.preview-slide.type-end .preview-head::after {
    content: "";
    display: block;
    width: min(210px, 48%);
    height: 3px;
    border-radius: 99px;
    margin: 8px auto 0;
    background: linear-gradient(90deg, transparent, var(--type-accent), transparent);
}

.preview-slide.type-end .preview-content {
    max-width: 880px;
    margin: 4px auto 0;
    text-align: center;
    font-size: 1.04rem;
}

.preview-slide.variant-inverse,
.preview-slide.variant-inverse-accent {
    --type-accent: #8ec5ff;
    --type-soft: rgba(255, 255, 255, 0.12);
    --type-text: #ffffff;
    --list-check: #8ec5ff;
}

.preview-slide.variant-inverse .preview-content blockquote,
.preview-slide.variant-inverse-accent .preview-content blockquote {
    background: rgba(255, 255, 255, 0.12);
    border-left-color: #8ec5ff;
}

.preview-slide.variant-inverse .preview-content p.note,
.preview-slide.variant-inverse-accent .preview-content p.note {
    background: rgba(255, 214, 165, 0.2);
    border-color: rgba(255, 224, 186, 0.55);
    color: #ffe7c7;
}

.preview-slide.variant-calm {
    --type-accent: #5b86ad;
    --type-soft: #edf4fb;
    --type-text: #274b69;
    --list-check: #5b86ad;
}

.preview-slide.variant-inverse.type-standard .preview-head,
.preview-slide.variant-inverse-accent.type-standard .preview-head {
    border-bottom-color: rgba(255, 255, 255, 0.36);
}

.preview-slide.variant-inverse.type-case .preview-content,
.preview-slide.variant-inverse-accent.type-case .preview-content {
    border-color: rgba(255, 255, 255, 0.34);
}

.preview-slide.variant-inverse.type-signal .preview-question,
.preview-slide.variant-inverse-accent.type-signal .preview-question {
    background: rgba(224, 79, 67, 0.18);
    border-color: rgba(255, 197, 189, 0.55);
}

.preview-question {
    margin-top: 12px;
    background: #eff6fe;
    border: 1px solid #d5e7f8;
    border-radius: 10px;
    padding: 10px 12px;
}

.live-preview-shell {
    margin-top: 16px;
    border-top: 1px dashed #cfe1f2;
    padding-top: 14px;
}

.live-preview-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 10px;
}

@media (max-width: 760px) {
    .stats-grid,
    .grid-2 {
        grid-template-columns: 1fr;
    }

    .form-inline {
        grid-template-columns: 1fr;
    }

    .share-link-row {
        flex-direction: column;
        align-items: stretch;
    }

    .share-link-actions {
        width: 100%;
        min-width: 0;
        align-items: stretch;
    }

    .slides-list-row {
        flex-direction: column;
        align-items: stretch;
    }

    .slides-list-main {
        width: 100%;
    }

    .slides-list-actions {
        width: 100%;
        min-width: 0;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .slides-topbar {
        flex-direction: column;
        align-items: stretch;
    }

    .bulk-form {
        grid-template-columns: 1fr;
    }

    .preview-slide.layout-left .preview-image,
    .preview-slide.layout-right .preview-image {
        float: none;
        width: auto;
        margin: 12px 0;
        max-height: 320px;
    }

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