:root {
    --bg: #f4f7fb;
    --bg-accent: #e9eff8;
    --surface: #ffffff;
    --surface-alt: rgba(255, 255, 255, 0.72);
    --text: #172033;
    --muted: #60708a;
    --border: #d9e1ec;
    --primary: #0f6bff;
    --primary-strong: #0a52c9;
    --primary-soft: #e8f0ff;
    --danger: #c53b3b;
    --success: #1e8e5a;
    --shadow: 0 24px 60px rgba(24, 39, 75, 0.12);
    --shadow-soft: 0 10px 30px rgba(24, 39, 75, 0.08);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 10px;
}

* {
    box-sizing: border-box;
}

body.modern-app {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    background:
        radial-gradient(circle at top left, rgba(15, 107, 255, 0.12), transparent 30%),
        linear-gradient(180deg, #f9fbff 0%, var(--bg) 55%, var(--bg-accent) 100%);
}

body.modern-app .page {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
    background: transparent;
}

body.login-page .page {
    width: min(640px, calc(100% - 32px));
}

.app-shell {
    padding: 24px 0 40px;
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 16px 24px;
    margin-top: 20px;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(14px);
}

.app-brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    color: var(--text);
    text-decoration: none;
}

.app-brand img {
    width: auto;
    height: 48px;
}

.app-brand-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.app-brand-title {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.01em;
}

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

.app-header-meta {
    color: var(--muted);
    font-size: 14px;
    text-align: right;
}

.login-shell {
    display: grid;
    grid-template-columns: minmax(280px, 1fr) minmax(320px, 440px);
    gap: 36px;
    align-items: center;
    min-height: calc(100vh - 220px);
    padding: 48px 0 64px;
}

.login-stage {
    display: flex;
    justify-content: center;
    padding: 72px 0 96px;
}

.login-hero {
    padding: 24px 8px 24px 0;
}

.eyebrow {
    display: inline-flex;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.65);
    color: var(--primary-strong);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.login-hero h1 {
    margin: 18px 0 12px;
    font-size: clamp(36px, 5vw, 56px);
    line-height: 1.02;
    letter-spacing: -0.03em;
}

.login-hero p {
    margin: 0;
    max-width: 560px;
    color: var(--muted);
    font-size: 18px;
    line-height: 1.7;
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin: 28px 0 0;
    padding: 0;
    list-style: none;
}

.feature-list li {
    padding: 16px 18px;
    border: 1px solid rgba(217, 225, 236, 0.9);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.58);
    box-shadow: var(--shadow-soft);
    color: var(--text);
    font-size: 15px;
}

.login-card,
.dashboard-panel {
    background: var(--surface-alt);
    border: 1px solid rgba(255, 255, 255, 0.65);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    backdrop-filter: blur(16px);
}

.login-card {
    padding: 32px;
    width: 100%;
    max-width: 440px;
}

.card-title {
    margin: 0 0 8px;
    font-size: 28px;
    letter-spacing: -0.02em;
}

.card-subtitle {
    margin: 0 0 24px;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.6;
}

body.login-page .app-shell {
    padding-bottom: 16px;
}

body.login-page .app-header {
    margin-left: 60px;
    margin-right: 60px;
    margin-top: 32px;
}

body.login-page .app-brand {
    margin-left: 30px;
}

body.login-page .app-header-meta {
    text-align: right;
}

body.login-page .app-brand-title {
    position: relative;
    top: 10px;
    font-weight: 400;
}

body.login-page .login-card {
    background: rgba(255, 255, 255, 0.88);
}

.form-grid {
    display: grid;
    gap: 18px;
}

.form-field label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
}

.form-field input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.92);
    color: var(--text);
    font-size: 16px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-field input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(15, 107, 255, 0.14);
    outline: none;
}

.button-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 6px;
}

.primary-button,
.secondary-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0 20px;
    border-radius: 999px;
    border: 0;
    font-size: 15px;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}

.primary-button {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);
    color: #fff;
    box-shadow: 0 14px 26px rgba(15, 107, 255, 0.24);
}

.secondary-button {
    background: var(--primary-soft);
    color: var(--primary-strong);
}

.text-link {
    color: var(--primary-strong);
    text-decoration: none;
    font-weight: 600;
}

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

.alert,
.error-list {
    margin: 0 0 20px;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(197, 59, 59, 0.18);
    background: rgba(197, 59, 59, 0.08);
    color: var(--danger);
    font-size: 14px;
    line-height: 1.5;
}

.error-list p {
    margin: 0;
}

.dashboard-shell {
    padding: 34px 0 60px;
}

.dashboard-panel {
    padding: 32px;
}

.dashboard-header {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 28px;
}

.dashboard-title-group h1 {
    margin: 0 0 10px;
    font-size: 42px;
    letter-spacing: -0.03em;
}

.dashboard-title-group p {
    margin: 0;
    color: var(--muted);
    font-size: 16px;
    line-height: 1.7;
    max-width: 620px;
}

.dashboard-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

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

.menu-card {
    padding: 24px;
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid var(--border);
    border-radius: 20px;
}

.menu-section {
    padding: 0;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.menu-section[open] {
    grid-column: 1 / -1;
}

.menu-section:hover {
    transform: translateY(-4px) scale(1.01);
    border-color: #9fc2ff;
    background: #ffffff;
    box-shadow: 0 24px 42px rgba(15, 107, 255, 0.28);
}

.menu-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 24px;
    cursor: pointer;
    list-style: none;
}

.menu-summary::-webkit-details-marker {
    display: none;
}

.menu-summary-text {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.menu-summary-title {
    font-size: 22px;
    letter-spacing: -0.02em;
}

.menu-summary-meta {
    color: var(--muted);
    font-size: 15px;
    line-height: 1.6;
}

.menu-summary-icon {
    position: relative;
    flex-shrink: 0;
    width: 16px;
    height: 16px;
}

.menu-summary-icon:before,
.menu-summary-icon:after {
    content: "";
    position: absolute;
    top: 7px;
    left: 0;
    width: 16px;
    height: 2px;
    border-radius: 999px;
    background: var(--primary-strong);
    transition: transform 0.18s ease;
}

.menu-summary-icon:after {
    transform: rotate(90deg);
}

.menu-section[open] .menu-summary-icon:after {
    transform: rotate(0deg);
}

.menu-links {
    display: grid;
    gap: 12px;
    padding: 0 24px 24px;
}

.menu-section[open] .menu-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.menu-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 14px 16px;
    border: 1px solid transparent;
    border-radius: 14px;
    background: #f8fbff;
    color: var(--text);
    text-decoration: none;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.menu-link:hover {
    transform: translateY(-1px);
    border-color: #cfe0ff;
    box-shadow: var(--shadow-soft);
}

.menu-link-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.menu-link-title {
    font-size: 15px;
    font-weight: 700;
}

.menu-link-meta {
    color: var(--muted);
    font-size: 13px;
}

.badge {
    flex-shrink: 0;
    padding: 6px 10px;
    border-radius: 999px;
    background: #ebfff5;
    color: var(--success);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.app-footer {
    padding: 0 0 36px;
}

.app-footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 24px;
    color: var(--muted);
    font-size: 13px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.65);
    border-radius: 18px;
}

@media (max-width: 900px) {
    .login-shell,
    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .dashboard-header,
    .app-header,
    .app-footer-inner,
    .button-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .feature-list {
        grid-template-columns: 1fr;
    }

    .dashboard-title-group h1 {
        font-size: 34px;
    }

    .login-stage {
        padding: 40px 0 64px;
    }

    .menu-section[open] .menu-links {
        grid-template-columns: 1fr;
    }

    body.admin-page .dashboard-shell {
        padding: 20px 0 40px;
    }

    body.admin-page .dashboard-panel {
        padding: 24px;
    }

    body.admin-page .dashboard-header {
        gap: 18px;
        margin-bottom: 20px;
    }

    body.admin-page .dashboard-title-group h1 {
        font-size: 32px;
        margin-bottom: 6px;
    }

    body.admin-page .dashboard-title-group p {
        font-size: 15px;
        line-height: 1.5;
    }

    body.admin-page .dashboard-actions {
        width: 100%;
    }

    body.admin-page .secondary-button,
    body.admin-page .primary-button {
        min-width: 140px;
    }

    body.admin-page .menu-summary {
        padding: 20px;
    }

    body.admin-page .menu-summary-title {
        font-size: 20px;
        line-height: 1.05;
    }

    body.admin-page .menu-summary-meta {
        font-size: 14px;
        line-height: 1.45;
    }
}

@media (max-width: 560px) {
    body.modern-app .page {
        width: min(100% - 20px, 1120px);
    }

    body.login-page .page {
        width: calc(100% - 12px);
    }

    .login-card,
    .dashboard-panel,
    .menu-card {
        padding: 22px;
    }

    .login-hero h1 {
        font-size: 34px;
    }

    body.login-page .app-shell {
        padding-top: 10px;
    }

    body.login-page .app-header {
        margin-left: 0;
        margin-right: 0;
        padding: 14px 16px;
        border-radius: 18px;
    }

    body.login-page .app-brand {
        margin-left: 0;
        gap: 10px;
    }

    body.login-page .app-brand img {
        height: 40px;
    }

    body.login-page .app-brand-title {
        top: 0;
        font-size: 16px;
        line-height: 1.25;
    }

    body.login-page .login-stage {
        padding: 24px 0 40px;
    }

    body.login-page .login-card {
        max-width: none;
        border-radius: 18px;
    }

    body.login-page .card-title {
        font-size: 24px;
    }

    body.login-page .button-row {
        width: 100%;
    }

    body.login-page .primary-button {
        width: 100%;
    }

    body.admin-page .page {
        width: calc(100% - 12px);
    }

    body.admin-page .app-header {
        padding: 14px 16px;
        border-radius: 18px;
        gap: 10px;
    }

    body.admin-page .app-brand {
        gap: 10px;
    }

    body.admin-page .app-brand img {
        height: 36px;
    }

    body.admin-page .app-brand-subtitle {
        font-size: 12px;
        line-height: 1.2;
    }

    body.admin-page .app-header-meta {
        display: none;
    }

    body.admin-page .dashboard-shell {
        padding: 14px 0 28px;
    }

    body.admin-page .dashboard-panel {
        padding: 18px;
        border-radius: 18px;
    }

    body.admin-page .dashboard-title-group h1 {
        font-size: 24px;
        line-height: 1.05;
    }

    body.admin-page .dashboard-title-group p {
        font-size: 14px;
        line-height: 1.45;
    }

    body.admin-page .dashboard-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    body.admin-page .dashboard-actions .secondary-button,
    body.admin-page .dashboard-actions .primary-button {
        width: 100%;
        min-width: 0;
        min-height: 44px;
        padding: 0 14px;
        font-size: 14px;
    }

    body.admin-page .menu-card {
        border-radius: 18px;
    }

    body.admin-page .menu-summary {
        padding: 16px;
        gap: 12px;
    }

    body.admin-page .menu-summary-text {
        gap: 0;
    }

    body.admin-page .menu-summary-title {
        font-size: 17px;
        line-height: 1.05;
    }

    body.admin-page .menu-summary-meta {
        display: none;
    }

    body.admin-page .menu-summary-icon {
        width: 18px;
        height: 18px;
    }

    body.admin-page .menu-summary-icon:before,
    body.admin-page .menu-summary-icon:after {
        top: 8px;
        width: 18px;
    }

    body.admin-page .menu-links {
        padding: 0 16px 16px;
    }

    body.admin-page .menu-link {
        padding: 12px 14px;
    }

    body.admin-page .menu-link-title {
        font-size: 14px;
    }

    body.admin-page .menu-link-meta {
        font-size: 12px;
        line-height: 1.35;
    }

    body.admin-page .app-footer-inner {
        padding: 14px 16px;
        font-size: 12px;
        line-height: 1.4;
    }
}