:root {
    --bg: #0b1220;
    --bg-soft: #111a2e;
    --card: rgba(17, 26, 46, 0.82);
    --card-solid: #121c31;
    --text: #e8edf7;
    --muted: #9aa8c7;
    --border: rgba(255, 255, 255, 0.08);
    --accent: #4f8cff;
    --accent-2: #69e6ff;
    --success: #22c55e;
    --danger: #ef4444;
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
    --input-bg: rgba(255, 255, 255, 0.04);
    --hover-bg: rgba(255, 255, 255, 0.06);
    --header-bg: rgba(10, 17, 31, 0.78);
    --badge-bg: rgba(79, 140, 255, 0.14);
    --hero-grad-1: rgba(79, 140, 255, 0.18);
    --hero-grad-2: rgba(105, 230, 255, 0.12);
}

html[data-theme="light"] {
    --bg: #f3f7fc;
    --bg-soft: #eaf0f8;
    --card: rgba(255, 255, 255, 0.86);
    --card-solid: #ffffff;
    --text: #142033;
    --muted: #5d6c86;
    --border: rgba(20, 32, 51, 0.08);
    --accent: #2563eb;
    --accent-2: #06b6d4;
    --success: #16a34a;
    --danger: #dc2626;
    --shadow: 0 20px 60px rgba(15, 23, 42, 0.08);
    --input-bg: rgba(37, 99, 235, 0.04);
    --hover-bg: rgba(37, 99, 235, 0.06);
    --header-bg: rgba(255, 255, 255, 0.8);
    --badge-bg: rgba(37, 99, 235, 0.10);
    --hero-grad-1: rgba(37, 99, 235, 0.08);
    --hero-grad-2: rgba(6, 182, 212, 0.07);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Segoe UI", Arial, sans-serif;
    background:
        radial-gradient(circle at top left, var(--hero-grad-1), transparent 28%),
        radial-gradient(circle at top right, var(--hero-grad-2), transparent 32%),
        linear-gradient(135deg, var(--bg) 0%, var(--bg-soft) 100%);
    color: var(--text);
    min-height: 100vh;
}

a {
    text-decoration: none;
}

.login-body {
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.login-theme-toggle {
    position: absolute;
    top: 24px;
    right: 24px;
    z-index: 9;
}

.login-page-wrapper {
    width: 100%;
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 36px;
    padding: 40px 70px;
}

.login-left-panel {
    padding-right: 20px;
}

.brand-badge,
.section-badge,
.card-tag,
.admin-chip-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 999px;
    background: var(--badge-bg);
    color: var(--accent-2);
    border: 1px solid var(--border);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.login-left-panel h1 {
    font-size: 54px;
    line-height: 1.1;
    max-width: 640px;
    margin: 20px 0 18px;
    font-weight: 800;
}

.login-left-panel p {
    max-width: 620px;
    font-size: 18px;
    line-height: 1.8;
    color: var(--muted);
}

.login-feature-list {
    margin-top: 28px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text);
    font-size: 16px;
}

.feature-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    box-shadow: 0 0 16px rgba(79, 140, 255, 0.35);
}

.login-card {
    width: 100%;
    max-width: 480px;
    margin-left: auto;
    background: var(--card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: 28px;
    box-shadow: var(--shadow);
    padding: 36px;
}

.login-card-top h2 {
    font-size: 34px;
    margin-bottom: 10px;
}

.login-card-top p {
    color: var(--muted);
    margin-bottom: 24px;
    line-height: 1.7;
}

.alert-error {
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.22);
    color: #ffb4b4;
    padding: 14px 16px;
    border-radius: 14px;
    margin-bottom: 18px;
    font-size: 14px;
}

html[data-theme="light"] .alert-error {
    color: #b91c1c;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.input-group label {
    display: block;
    margin-bottom: 9px;
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
}

.input-group input {
    width: 100%;
    height: 54px;
    border: 1px solid var(--border);
    background: var(--input-bg);
    color: var(--text);
    border-radius: 16px;
    padding: 0 16px;
    outline: none;
    font-size: 15px;
    transition: 0.25s ease;
}

.input-group input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(79, 140, 255, 0.12);
}

.primary-btn,
.secondary-btn,
.theme-toggle-btn,
.logout-link {
    transition: 0.25s ease;
}

.primary-btn {
    height: 56px;
    border: none;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: white;
    font-size: 16px;
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 14px 30px rgba(37, 99, 235, 0.25);
}

.primary-btn:hover {
    transform: translateY(-1px);
    opacity: 0.96;
}

.secondary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 48px;
    padding: 0 20px;
    border-radius: 14px;
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
    font-weight: 700;
}

.secondary-btn:hover {
    background: var(--hover-bg);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 16px 24px;
    background: var(--header-bg);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 20px;
}

.brand-area {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-logo {
    width: 46px;
    height: 46px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: white;
    font-weight: 800;
    box-shadow: 0 10px 22px rgba(37, 99, 235, 0.22);
}

.brand-title {
    font-size: 18px;
    font-weight: 800;
    color: var(--text);
}

.brand-subtitle {
    font-size: 13px;
    color: var(--muted);
    margin-top: 2px;
}

.main-nav {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.nav-link {
    color: var(--muted);
    font-weight: 700;
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid transparent;
}

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

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

.admin-chip {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--text);
}

.theme-toggle-btn {
    border: 1px solid var(--border);
    background: var(--card);
    color: var(--text);
    height: 46px;
    padding: 0 16px;
    border-radius: 14px;
    cursor: pointer;
    font-weight: 700;
}

.theme-toggle-btn:hover {
    background: var(--hover-bg);
}

.theme-toggle-btn.small {
    height: 44px;
}

.logout-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 46px;
    padding: 0 16px;
    border-radius: 14px;
    color: white;
    font-weight: 800;
    background: linear-gradient(135deg, #ef4444, #f97316);
}

.logout-link:hover {
    opacity: 0.95;
    transform: translateY(-1px);
}

.page-shell {
    max-width: 1400px;
    margin: 0 auto;
    padding: 34px 24px 50px;
}

.hero-panel {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 28px;
    box-shadow: var(--shadow);
    padding: 34px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1.6fr 0.7fr;
    gap: 24px;
    align-items: center;
}

.hero-text h1 {
    font-size: 42px;
    margin: 16px 0 14px;
    line-height: 1.15;
}

.hero-text p {
    max-width: 760px;
    color: var(--muted);
    font-size: 17px;
    line-height: 1.8;
}

.hero-meta-card {
    background: var(--card-solid);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 24px;
    text-align: center;
}

.meta-label {
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 12px;
}

.meta-value {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 6px;
}

.meta-sub {
    color: var(--accent-2);
    font-weight: 700;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    margin-top: 24px;
}

.stat-card,
.content-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 24px;
    box-shadow: var(--shadow);
}

.stat-card {
    padding: 24px;
}

.stat-title {
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 10px;
}

.stat-value {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 8px;
}

.stat-desc {
    color: var(--muted);
    line-height: 1.7;
    font-size: 14px;
}

.dashboard-main-grid {
    display: grid;
    grid-template-columns: 1.5fr 0.8fr;
    gap: 24px;
    margin-top: 24px;
}

.content-card {
    padding: 24px;
}

.card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 18px;
}

.card-head h3 {
    font-size: 22px;
}

.card-tag {
    font-size: 12px;
}

.card-tag.green {
    color: #86efac;
    background: rgba(34, 197, 94, 0.12);
}

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

.quick-link-box {
    display: block;
    padding: 22px;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: var(--card-solid);
    color: var(--text);
    transition: 0.25s ease;
}

.quick-link-box:hover {
    transform: translateY(-2px);
    background: var(--hover-bg);
}

.quick-link-title {
    display: block;
    font-size: 17px;
    font-weight: 800;
    margin-bottom: 8px;
}

.quick-link-text {
    display: block;
    color: var(--muted);
    line-height: 1.7;
    font-size: 14px;
}

.side-text {
    color: var(--muted);
    line-height: 1.8;
    margin-bottom: 18px;
}

@media (max-width: 1180px) {
    .login-page-wrapper,
    .hero-content,
    .dashboard-main-grid,
    .header-inner {
        grid-template-columns: 1fr;
    }

    .login-card {
        margin-left: 0;
    }

    .main-nav {
        justify-content: flex-start;
    }

    .header-right {
        flex-wrap: wrap;
    }
}

@media (max-width: 900px) {
    .stats-grid,
    .quick-links-grid {
        grid-template-columns: 1fr;
    }

    .login-page-wrapper {
        padding: 30px 20px;
    }

    .login-left-panel h1 {
        font-size: 36px;
    }

    .hero-text h1 {
        font-size: 30px;
    }

    .site-header {
        padding: 14px 16px;
    }

    .page-shell {
        padding: 24px 16px 40px;
    }

    .login-card,
    .hero-panel,
    .stat-card,
    .content-card {
        padding: 20px;
        border-radius: 20px;
    }
}