:root {
    --color-background: #f5f6f8;
    --color-surface: #ffffff;
    --color-text: #1f2937;
    --color-muted: #6b7280;
    --color-border: #dfe3e8;
    --color-primary: #111827;
    --color-primary-hover: #374151;
    --color-accent: #8b5cf6;
    --color-danger: #b42318;
    --color-success: #067647;

    --radius-small: 8px;
    --radius-medium: 14px;
    --radius-large: 22px;

    --shadow-card:
        0 24px 60px rgba(17, 24, 39, 0.10),
        0 4px 12px rgba(17, 24, 39, 0.05);

    --content-width: 440px;
}

* {
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    min-height: 100vh;
    margin: 0;
    color: var(--color-text);
    background:
        radial-gradient(
            circle at top left,
            rgba(139, 92, 246, 0.12),
            transparent 32rem
        ),
        var(--color-background);
    font-family:
        Inter,
        ui-sans-serif,
        system-ui,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    line-height: 1.5;
}

a {
    color: inherit;
}

.login-page {
    min-height: 100vh;
    display: grid;
    grid-template-rows: auto 1fr auto;
}

.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 32px;
}

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

.brand-mark {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    color: #ffffff;
    background: var(--color-primary);
    border-radius: 12px;
    font-size: 17px;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-size: 17px;
    font-weight: 750;
    letter-spacing: -0.02em;
}

.brand-product {
    color: var(--color-muted);
    font-size: 13px;
}

.environment-label {
    padding: 6px 10px;
    color: var(--color-muted);
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    font-size: 12px;
    font-weight: 650;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.login-main {
    display: grid;
    place-items: center;
    padding: 32px 20px 64px;
}

.login-card {
    width: min(100%, var(--content-width));
    padding: 38px;
    background: var(--color-surface);
    border: 1px solid rgba(223, 227, 232, 0.9);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-card);
}

.login-card h1 {
    margin: 0;
    font-size: clamp(28px, 5vw, 36px);
    line-height: 1.12;
    letter-spacing: -0.035em;
}

.login-intro {
    margin: 12px 0 30px;
    color: var(--color-muted);
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 700;
}

.form-input {
    width: 100%;
    min-height: 48px;
    padding: 12px 14px;
    color: var(--color-text);
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-small);
    font: inherit;
    outline: none;
    transition:
        border-color 150ms ease,
        box-shadow 150ms ease;
}

.form-input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.13);
}

.button {
    width: 100%;
    min-height: 50px;
    padding: 12px 18px;
    color: #ffffff;
    background: var(--color-primary);
    border: 0;
    border-radius: var(--radius-small);
    cursor: pointer;
    font: inherit;
    font-weight: 750;
    transition:
        background-color 150ms ease,
        transform 100ms ease;
}

.button:hover {
    background: var(--color-primary-hover);
}

.button:active {
    transform: translateY(1px);
}

.login-note {
    margin: 24px 0 0;
    color: var(--color-muted);
    font-size: 13px;
    text-align: center;
}

.alert {
    margin-bottom: 22px;
    padding: 12px 14px;
    border-radius: var(--radius-small);
    font-size: 14px;
}

.alert-error {
    color: var(--color-danger);
    background: #fef3f2;
    border: 1px solid #fecdca;
}

.alert-success {
    color: var(--color-success);
    background: #ecfdf3;
    border: 1px solid #abefc6;
}

.site-footer {
    padding: 20px 24px;
    color: var(--color-muted);
    font-size: 13px;
    text-align: center;
}

@media (max-width: 600px) {
    .site-header {
        padding: 18px;
    }

    .environment-label {
        display: none;
    }

    .login-main {
        padding-top: 12px;
    }

    .login-card {
        padding: 28px 22px;
        border-radius: var(--radius-medium);
    }
}


.app-page {
    min-height: 100vh;
    background: var(--color-background);
}

.app-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 16px 28px;
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(12px);
}

.app-navigation {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link {
    padding: 9px 12px;
    color: var(--color-muted);
    border-radius: var(--radius-small);
    font-size: 14px;
    font-weight: 650;
    text-decoration: none;
}

.nav-link:hover,
.nav-link-active {
    color: var(--color-text);
    background: #f1f3f5;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 14px;
}

.user-name {
    font-size: 14px;
    font-weight: 700;
}

.logout-link {
    color: var(--color-muted);
    font-size: 13px;
    text-decoration: none;
}

.logout-link:hover {
    color: var(--color-danger);
}

.dashboard-main {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
    padding: 48px 0 70px;
}

.page-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 32px;
}

.page-heading h1 {
    margin: 0;
    font-size: clamp(30px, 5vw, 42px);
    letter-spacing: -0.04em;
}

.page-heading p {
    margin: 8px 0 0;
    color: var(--color-muted);
}

.primary-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 18px;
    color: #ffffff;
    background: var(--color-primary);
    border-radius: var(--radius-small);
    font-size: 14px;
    font-weight: 750;
    text-decoration: none;
}

.primary-action:hover {
    background: var(--color-primary-hover);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin-bottom: 32px;
}

.stat-card,
.content-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    box-shadow: 0 6px 22px rgba(17, 24, 39, 0.04);
}

.stat-card {
    padding: 24px;
}

.stat-label {
    display: block;
    color: var(--color-muted);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.stat-value {
    display: block;
    margin-top: 10px;
    font-size: 34px;
    font-weight: 800;
    letter-spacing: -0.04em;
}

.content-card {
    padding: 26px;
}

.content-card h2 {
    margin: 0 0 8px;
    font-size: 20px;
}

.empty-state {
    padding: 38px 10px;
    color: var(--color-muted);
    text-align: center;
}

@media (max-width: 900px) {
    .app-header {
        align-items: flex-start;
        flex-wrap: wrap;
    }

    .app-navigation {
        order: 3;
        width: 100%;
        overflow-x: auto;
    }

    .stat-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 600px) {
    .app-header {
        padding: 15px 18px;
    }

    .brand-product,
    .user-name {
        display: none;
    }

    .dashboard-main {
        width: min(100% - 28px, 1180px);
        padding-top: 30px;
    }

    .page-heading {
        align-items: stretch;
        flex-direction: column;
    }

    .primary-action {
        width: 100%;
    }

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


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

.secondary-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 18px;
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-small);
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
}

.secondary-action:hover {
    background: #f8f9fa;
}

.table-wrapper {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 15px 14px;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
    vertical-align: top;
}

.data-table th {
    color: var(--color-muted);
    font-size: 12px;
    font-weight: 750;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.data-table td {
    font-size: 14px;
}

.data-table tr:last-child td {
    border-bottom: 0;
}

.link-title {
    display: block;
    font-weight: 750;
}

.short-link {
    color: var(--color-accent);
    font-weight: 650;
    text-decoration: none;
}

.short-link:hover {
    text-decoration: underline;
}

.destination-preview {
    display: block;
    max-width: 440px;
    overflow: hidden;
    color: var(--color-muted);
    font-size: 13px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.status-badge {
    display: inline-flex;
    padding: 5px 9px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 750;
}

.status-active {
    color: var(--color-success);
    background: #ecfdf3;
}

.status-inactive {
    color: var(--color-muted);
    background: #f1f3f5;
}

.form-card {
    max-width: 820px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.form-group-full {
    grid-column: 1 / -1;
}

.form-help {
    display: block;
    margin-top: 7px;
    color: var(--color-muted);
    font-size: 13px;
}

.form-input-error {
    border-color: var(--color-danger);
}

.generated-link {
    padding: 16px;
    color: var(--color-text);
    background: #f8f9fa;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-small);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    overflow-wrap: anywhere;
}

.form-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

.form-footer .button {
    width: auto;
    min-width: 140px;
}

@media (max-width: 700px) {
    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-group-full {
        grid-column: auto;
    }

    .page-actions,
    .form-footer {
        align-items: stretch;
        flex-direction: column;
    }

    .form-footer .button {
        width: 100%;
    }
}


.settings-add-card {
    margin-bottom: 24px;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.table-action-cell {
    width: 1%;
    white-space: nowrap;
    text-align: right;
}

.table-action-button {
    padding: 7px 11px;
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-small);
    cursor: pointer;
    font: inherit;
    font-size: 13px;
    font-weight: 700;
}

.table-action-button:hover {
    background: #f8f9fa;
}

@media (max-width: 900px) {
    .settings-grid {
        grid-template-columns: 1fr;
    }
}


.campaign-name-link {
    color: var(--color-text);
    text-decoration: none;
}

.campaign-name-link:hover {
    color: var(--color-accent);
}

.campaign-stat-text {
    display: block;
    margin-top: 12px;
    font-size: 20px;
    line-height: 1.25;
}

.campaign-details-card {
    margin-bottom: 24px;
}

.campaign-links-card h2,
.campaign-details-card h2 {
    margin-bottom: 22px;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    margin: 0;
}

.detail-grid div {
    padding-bottom: 18px;
    border-bottom: 1px solid var(--color-border);
}

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

.detail-grid dt {
    margin-bottom: 7px;
    color: var(--color-muted);
    font-size: 12px;
    font-weight: 750;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.detail-grid dd {
    margin: 0;
    overflow-wrap: anywhere;
}

@media (max-width: 700px) {
    .detail-grid {
        grid-template-columns: 1fr;
    }

    .detail-grid-full {
        grid-column: auto;
    }
}

.advanced-options {
    padding: 16px;
    background: #f8f9fa;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-small);
}

.advanced-options summary {
    cursor: pointer;
    font-weight: 750;
}

.advanced-options-content {
    padding-top: 22px;
}

.qr-card {
    display: grid;
    grid-template-columns: minmax(280px, 380px) 1fr;
    gap: 40px;
    align-items: center;
}

.qr-preview {
    display: grid;
    place-items: center;
    padding: 20px;
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
}

.qr-preview img {
    display: block;
    width: 100%;
    max-width: 360px;
    height: auto;
}

.qr-information h2 {
    margin-top: 0;
}

.qr-campaign {
    color: var(--color-muted);
}

.qr-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

@media (max-width: 760px) {
    .qr-card {
        grid-template-columns: 1fr;
    }

    .qr-actions {
        align-items: stretch;
        flex-direction: column;
    }
}

.table-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.checkbox-field {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
}


.management-title-link {
    color: var(--color-text);
    text-decoration: none;
}

.management-title-link:hover {
    color: var(--color-accent);
}

.short-link-row {
    margin-top: 4px;
}

.campaign-table-link {
    color: var(--color-text);
    font-weight: 650;
    text-decoration: none;
}

.campaign-table-link:hover {
    color: var(--color-accent);
}

.click-count-column {
    text-align: center;
}

.click-count {
    font-size: 17px;
}

.copy-link-success {
    color: var(--color-success);
    border-color: #abefc6;
    background: #ecfdf3;
}

.links-management-table th:last-child,
.links-management-table td:last-child {
    min-width: 190px;
}

.analytics-chart-card {
    margin-bottom: 24px;
}

.analytics-section-heading {
    margin-bottom: 26px;
}

.analytics-section-heading h2 {
    margin: 0;
}

.analytics-section-heading p {
    margin: 6px 0 0;
    color: var(--color-muted);
}

.analytics-chart {
    display: grid;
    grid-template-columns: repeat(30, minmax(22px, 1fr));
    gap: 7px;
    min-height: 290px;
    overflow-x: auto;
    padding: 18px 4px 4px;
}

.analytics-bar-column {
    display: grid;
    grid-template-rows: 24px 200px 34px;
    min-width: 22px;
    text-align: center;
}

.analytics-bar-value {
    color: var(--color-muted);
    font-size: 11px;
}

.analytics-bar-track {
    display: flex;
    align-items: flex-end;
    height: 200px;
    background: #f4f5f7;
    border-radius: 5px 5px 0 0;
    overflow: hidden;
}

.analytics-bar {
    width: 100%;
    min-height: 0;
    background: var(--color-accent);
    border-radius: 5px 5px 0 0;
}

.analytics-bar-label {
    padding-top: 8px;
    color: var(--color-muted);
    font-size: 10px;
    white-space: nowrap;
    transform: rotate(-45deg);
    transform-origin: center;
}

@media (max-width: 800px) {
    .analytics-chart {
        grid-template-columns: repeat(30, 28px);
    }
}

.link-search {
    max-width: 560px;
    margin-bottom: 20px;
}

.link-search-count {
    min-height: 20px;
    margin-top: 7px;
    color: var(--color-muted);
    font-size: 13px;
}


.generated-url-preview {
    line-height: 1.55;
    overflow-wrap: anywhere;
}

.url-preview-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}