:root {
    --color-primary: #0F4C81;
    --color-secondary: #0A2540;
    --color-accent: #F97316;
    --color-success: #16A34A;
    --color-warning: #F59E0B;
    --color-danger: #DC2626;
    --color-bg: #F8FAFC;
    --color-card: #FFFFFF;
    --color-border: #E2E8F0;
    --color-text: #0F172A;
    --color-muted: #64748B;
    --shadow-soft: 0 20px 50px rgba(15, 76, 129, 0.08);
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Inter", sans-serif;
    background:
        radial-gradient(circle at top right, rgba(249, 115, 22, 0.12), transparent 30%),
        linear-gradient(180deg, #fdfefe 0%, var(--color-bg) 100%);
    color: var(--color-text);
}

h1, h2, h3, h4, h5, h6 {
    margin: 0 0 0.5rem;
    font-family: "Poppins", sans-serif;
}

h1 { font-size: 32px; font-weight: 700; }
h2 { font-size: 28px; font-weight: 700; }
h3 { font-size: 24px; font-weight: 600; }
h4 { font-size: 20px; font-weight: 600; }
h5 { font-size: 18px; font-weight: 600; }
h6 { font-size: 16px; font-weight: 600; }

p, label, input, select, textarea, button {
    font-size: 15px;
}

.form-label.jiomook-form-label--required::after {
    content: " *";
    color: var(--color-danger);
    font-weight: 700;
}

.jiomook-shell {
    min-height: 100vh;
}

.app-layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    min-height: 100vh;
}

.app-sidebar {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 24px 20px;
    color: #fff;
    background: linear-gradient(180deg, var(--color-secondary) 0%, #081b2c 100%);
}

.app-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
}

.app-brand__logo {
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    font-weight: 700;
    background: rgba(255, 255, 255, 0.14);
}

.brand-logo__image {
    width: 48px;
    height: 48px;
    object-fit: contain;
    border-radius: 14px;
    padding: 7px;
    background: rgba(255, 255, 255, 0.14);
}

.app-brand small,
.app-topbar p,
.page-header-jiomook__subtitle {
    color: var(--color-muted);
}

.sidebar-nav {
    display: grid;
    gap: 10px;
}

.sidebar-nav a {
    padding: 12px 14px;
    border-radius: 12px;
    color: rgba(255, 255, 255, 0.84);
    text-decoration: none;
    transition: 0.2s ease;
}

.sidebar-nav a.active,
.sidebar-nav a:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.app-main {
    padding: 24px;
}

.app-topbar,
.page-header-jiomook,
.filter-bar,
.dashboard-grid,
.content-grid {
    margin-bottom: 24px;
}

.app-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.page-header-jiomook {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 18px;
    padding: 22px 24px;
    border: 1px solid rgba(15, 76, 129, 0.1);
    border-radius: 24px;
    background:
        radial-gradient(circle at top right, rgba(249, 115, 22, 0.08), transparent 26%),
        linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(246, 249, 252, 0.98) 100%);
    box-shadow: 0 18px 44px rgba(15, 76, 129, 0.06);
}

.page-header-jiomook__eyebrow {
    margin-bottom: 8px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-primary);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.content-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, 420px);
    gap: 24px;
}

.content-grid__main,
.content-grid__side,
.preview-wrapper {
    min-width: 0;
}

.jiomook-card,
.kpi-card,
.preview-section,
.device-frame {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-card);
    box-shadow: var(--shadow-soft);
}

.jiomook-card__body,
.preview-section,
.device-frame {
    padding: 22px;
}

.jiomook-card__title {
    margin-bottom: 14px;
    font-size: 18px;
}

.kpi-card {
    display: flex;
    align-items: start;
    justify-content: space-between;
    padding: 20px;
}

.kpi-card__label,
.kpi-card__trend {
    margin: 0;
    color: var(--color-muted);
}

.kpi-card__value {
    margin: 8px 0;
}

.kpi-card__icon {
    display: grid;
    place-items: center;
    width: 54px;
    height: 54px;
    border-radius: 16px;
    color: var(--color-primary);
    background: rgba(15, 76, 129, 0.08);
}

.palette-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.palette-grid div {
    display: flex;
    align-items: center;
    gap: 10px;
}

.palette-grid span {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    border: 1px solid rgba(15, 23, 42, 0.08);
}

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

.mobile-bottom-nav {
    display: none;
}

.preview-wrapper {
    max-width: 1280px;
    margin: 0 auto;
    padding: 32px 24px 96px;
}

.preview-section {
    margin-bottom: 24px;
}

.device-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.device-label {
    display: inline-block;
    margin-bottom: 14px;
    font-weight: 600;
    color: var(--color-primary);
}

.device-screen {
    overflow: hidden;
    border-radius: 16px;
    border: 1px solid var(--color-border);
    background: #f1f5f9;
}

.device-screen--desktop { min-height: 360px; }
.device-screen--tablet { min-height: 320px; }
.device-screen--mobile { min-height: 560px; }

.demo-navbar,
.demo-sidebar,
.demo-cards div,
.demo-table,
.demo-bottom-nav {
    background: linear-gradient(135deg, rgba(15, 76, 129, 0.18), rgba(249, 115, 22, 0.18));
}

.demo-navbar { height: 58px; }
.demo-layout { display: grid; grid-template-columns: 88px 1fr; }
.demo-sidebar { min-height: 302px; }
.demo-content { padding: 16px; }
.demo-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 12px; }
.demo-cards div { height: 72px; border-radius: 14px; }
.demo-table { height: 160px; border-radius: 16px; }
.demo-bottom-nav { height: 52px; margin: 16px; border-radius: 16px; }