/* NetDef 2.0 - Apple Design System */

:root {
    --color-bg: #000000;
    --color-bg-secondary: #1d1d1f;
    --color-bg-tertiary: #2d2d2f;
    --color-surface: #161617;
    --color-text: #f5f5f7;
    --color-text-secondary: #86868b;
    --color-text-tertiary: #6e6e73;
    --color-accent: #2997ff;
    --color-accent-hover: #0077ed;
    --color-success: #30d158;
    --color-warning: #ff9f0a;
    --color-danger: #ff3b30;
    --color-border: rgba(255,255,255,0.08);
    --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', 'Segoe UI', sans-serif;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow: 0 4px 24px rgba(0,0,0,0.4);
    --transition: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    overflow-x: hidden;
}

a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent-hover); }

/* Navigation */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(0,0,0,0.72);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--color-border);
    height: 48px;
    display: flex; align-items: center;
}

.nav-inner {
    max-width: 1200px; width: 100%; margin: 0 auto;
    padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between;
}

.nav-logo {
    font-size: 21px; font-weight: 600; color: var(--color-text);
    display: flex; align-items: center; gap: 8px;
}

.nav-logo svg { width: 24px; height: 24px; }

.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a { color: var(--color-text-secondary); font-size: 14px; font-weight: 400; }
.nav-links a:hover { color: var(--color-text); }

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

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 10px 22px; border-radius: 980px;
    font-size: 14px; font-weight: 500; font-family: inherit;
    border: none; cursor: pointer; transition: all var(--transition);
    text-decoration: none; white-space: nowrap;
}

.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: var(--color-accent-hover); color: #fff; }

.btn-secondary { background: rgba(255,255,255,0.1); color: var(--color-text); }
.btn-secondary:hover { background: rgba(255,255,255,0.15); color: var(--color-text); }

.btn-ghost { background: transparent; color: var(--color-accent); }
.btn-ghost:hover { background: rgba(41,151,255,0.1); }

.btn-danger { background: var(--color-danger); color: #fff; }
.btn-sm { padding: 6px 16px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 17px; }

/* Hero */
.hero {
    min-height: 100vh; display: flex; flex-direction: column;
    align-items: center; justify-content: center; text-align: center;
    padding: 120px 24px 80px;
    background: radial-gradient(ellipse at 50% 0%, rgba(41,151,255,0.12) 0%, transparent 60%);
}

.hero-badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 16px; border-radius: 980px;
    background: rgba(41,151,255,0.12); color: var(--color-accent);
    font-size: 13px; font-weight: 500; margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(40px, 7vw, 72px); font-weight: 700;
    letter-spacing: -0.02em; line-height: 1.05; margin-bottom: 20px;
}

.hero h1 .gradient {
    background: linear-gradient(135deg, #2997ff, #30d158);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: clamp(17px, 2.5vw, 21px); color: var(--color-text-secondary);
    max-width: 640px; margin-bottom: 36px; line-height: 1.5;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }

/* Sections */
.section { padding: 100px 24px; max-width: 1200px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-header h2 { font-size: clamp(32px, 5vw, 48px); font-weight: 700; letter-spacing: -0.02em; margin-bottom: 12px; }
.section-header p { font-size: 19px; color: var(--color-text-secondary); }

/* Feature Grid */
.features-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px;
}

.feature-card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); padding: 32px;
    transition: transform var(--transition), border-color var(--transition);
}

.feature-card:hover { transform: translateY(-4px); border-color: rgba(41,151,255,0.3); }
.feature-icon { font-size: 32px; margin-bottom: 16px; }
.feature-card h3 { font-size: 19px; font-weight: 600; margin-bottom: 8px; }
.feature-card p { font-size: 15px; color: var(--color-text-secondary); line-height: 1.6; }

/* Integration Steps */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.step-card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); padding: 32px; position: relative;
}
.step-num {
    width: 32px; height: 32px; border-radius: 50%;
    background: var(--color-accent); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 14px; font-weight: 600; margin-bottom: 16px;
}
.step-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.step-card p { font-size: 14px; color: var(--color-text-secondary); margin-bottom: 16px; }

.code-block {
    background: var(--color-bg); border: 1px solid var(--color-border);
    border-radius: var(--radius-sm); padding: 16px; overflow-x: auto;
    font-family: 'SF Mono', 'Fira Code', monospace; font-size: 13px;
    color: var(--color-success); line-height: 1.6;
}

/* Pricing */
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; max-width: 960px; margin: 0 auto; }
.pricing-card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); padding: 40px 32px; text-align: center;
}
.pricing-card.featured { border-color: var(--color-accent); background: rgba(41,151,255,0.05); }
.pricing-card h3 { font-size: 21px; font-weight: 600; margin-bottom: 8px; }
.pricing-card .price { font-size: 48px; font-weight: 700; margin: 16px 0; }
.pricing-card .price span { font-size: 17px; color: var(--color-text-secondary); font-weight: 400; }
.pricing-features { list-style: none; text-align: left; margin: 24px 0; }
.pricing-features li { padding: 8px 0; font-size: 14px; color: var(--color-text-secondary); border-bottom: 1px solid var(--color-border); }
.pricing-features li::before { content: '✓ '; color: var(--color-success); }

/* Footer */
.footer {
    border-top: 1px solid var(--color-border); padding: 40px 24px;
    text-align: center; color: var(--color-text-tertiary); font-size: 13px;
}

/* Auth Pages */
.auth-wrap {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    padding: 80px 24px;
    background: radial-gradient(ellipse at 50% 30%, rgba(41,151,255,0.08) 0%, transparent 60%);
}

.auth-card {
    width: 100%; max-width: 420px;
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); padding: 40px;
}

.auth-card h1 { font-size: 28px; font-weight: 600; text-align: center; margin-bottom: 8px; }
.auth-card .subtitle { text-align: center; color: var(--color-text-secondary); font-size: 15px; margin-bottom: 32px; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 13px; color: var(--color-text-secondary); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 12px 16px;
    background: var(--color-bg); border: 1px solid var(--color-border);
    border-radius: var(--radius-sm); color: var(--color-text);
    font-size: 15px; font-family: inherit; transition: border-color var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--color-accent);
}

.alert { padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 20px; font-size: 14px; }
.alert-error { background: rgba(255,59,48,0.15); color: var(--color-danger); border: 1px solid rgba(255,59,48,0.3); }
.alert-success { background: rgba(48,209,88,0.15); color: var(--color-success); border: 1px solid rgba(48,209,88,0.3); }

.auth-footer { text-align: center; margin-top: 24px; font-size: 14px; color: var(--color-text-secondary); }

/* Dashboard Layout */
.dashboard-layout { display: flex; min-height: 100vh; padding-top: 48px; }

.sidebar {
    width: 240px; background: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border);
    padding: 24px 0; position: fixed; top: 48px; bottom: 0; left: 0;
    overflow-y: auto;
}

.sidebar-nav { list-style: none; }
.sidebar-nav a {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 24px; color: var(--color-text-secondary);
    font-size: 14px; transition: all var(--transition);
}
.sidebar-nav a:hover, .sidebar-nav a.active {
    color: var(--color-text); background: rgba(255,255,255,0.05);
}
.sidebar-nav a.active { border-right: 2px solid var(--color-accent); }
.sidebar-nav .icon { font-size: 18px; width: 24px; text-align: center; }

.sidebar-divider {
    padding: 16px 24px 8px;
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    list-style: none;
}

.main-content { flex: 1; margin-left: 240px; padding: 32px; max-width: calc(100% - 240px); }

.page-header { margin-bottom: 32px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.page-header h1 { font-size: 28px; font-weight: 600; }

/* Stats Grid */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 32px; }
.stat-card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-md); padding: 24px;
}
.stat-card .label { font-size: 13px; color: var(--color-text-secondary); margin-bottom: 8px; }
.stat-card .value { font-size: 32px; font-weight: 700; letter-spacing: -0.02em; }

/* Cards & Tables */
.card {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-md); padding: 24px; margin-bottom: 24px;
}
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.card-header h2 { font-size: 17px; font-weight: 600; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 16px; text-align: left; font-size: 14px; border-bottom: 1px solid var(--color-border); }
th { color: var(--color-text-secondary); font-weight: 500; font-size: 13px; }
td { color: var(--color-text); }
tr:hover td { background: rgba(255,255,255,0.02); }

.badge {
    display: inline-block; padding: 3px 10px; border-radius: 980px;
    font-size: 12px; font-weight: 500;
}
.badge-success { background: rgba(48,209,88,0.15); color: var(--color-success); }
.badge-danger { background: rgba(255,59,48,0.15); color: var(--color-danger); }
.badge-warning { background: rgba(255,159,10,0.15); color: var(--color-warning); }
.badge-info { background: rgba(41,151,255,0.15); color: var(--color-accent); }

/* Tabs */
.tabs { display: flex; gap: 4px; margin-bottom: 24px; border-bottom: 1px solid var(--color-border); }
.tab {
    padding: 10px 20px; font-size: 14px; color: var(--color-text-secondary);
    cursor: pointer; border-bottom: 2px solid transparent; transition: all var(--transition);
    background: none; border-top: none; border-left: none; border-right: none; font-family: inherit;
}
.tab:hover { color: var(--color-text); }
.tab.active { color: var(--color-accent); border-bottom-color: var(--color-accent); }

/* Modal */
.modal-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,0.6);
    display: flex; align-items: center; justify-content: center;
    z-index: 2000; opacity: 0; visibility: hidden; transition: all var(--transition);
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-lg); padding: 32px; width: 90%; max-width: 520px;
    max-height: 90vh; overflow-y: auto;
}
.modal h2 { font-size: 21px; font-weight: 600; margin-bottom: 24px; }
.modal-actions { display: flex; gap: 12px; justify-content: flex-end; margin-top: 24px; }

/* Toast */
.toast-container { position: fixed; top: 64px; right: 24px; z-index: 3000; display: flex; flex-direction: column; gap: 8px; }
.toast {
    padding: 12px 20px; border-radius: var(--radius-sm); font-size: 14px;
    background: var(--color-surface); border: 1px solid var(--color-border);
    box-shadow: var(--shadow); animation: slideIn 0.3s ease;
}
.toast-success { border-color: var(--color-success); }
.toast-error { border-color: var(--color-danger); }
.toast-info { border-color: var(--color-accent); }

@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* Chart */
.chart-container { position: relative; height: 280px; margin-top: 16px; }

/* Animations */
.fade-in { animation: fadeIn 0.6s ease forwards; }
.fade-in-up { animation: fadeInUp 0.6s ease forwards; opacity: 0; }
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

/* Responsive */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    top: 48px;
    background: rgba(0, 0, 0, 0.55);
    z-index: 1040;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

.nav-menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    margin-right: 4px;
    margin-left: -8px;
    padding: 0;
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-text);
    cursor: pointer;
    flex-shrink: 0;
}

.nav-menu-toggle:hover {
    background: rgba(255, 255, 255, 0.08);
}

.sidebar-mobile-header {
    display: none;
}

.nav-user-name {
    color: var(--color-text-secondary);
    font-size: 14px;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dashboard-nav .nav-logo {
    flex: 1;
    min-width: 0;
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-menu-toggle { display: inline-flex; }
    .nav-inner { padding: 0 12px 0 8px; gap: 4px; }
    .nav-actions { gap: 6px; flex-shrink: 0; }
    .nav-user-name { display: none; }
    .nav-admin-badge { display: none !important; }
    .dashboard-nav .nav-logo { font-size: 18px; flex: 0 1 auto; }

    body.sidebar-open { overflow: hidden; }

    .sidebar-overlay { display: block; }

    .sidebar {
        display: flex;
        flex-direction: column;
        width: min(280px, 86vw);
        transform: translateX(-100%);
        transition: transform var(--transition);
        z-index: 1100;
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.4);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-mobile-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 16px 20px 12px;
        border-bottom: 1px solid var(--color-border);
        flex-shrink: 0;
    }

    .sidebar-mobile-title {
        font-size: 15px;
        font-weight: 600;
    }

    .sidebar-close {
        width: 36px;
        height: 36px;
        border: none;
        border-radius: var(--radius-sm);
        background: rgba(255, 255, 255, 0.06);
        color: var(--color-text);
        font-size: 24px;
        line-height: 1;
        cursor: pointer;
    }

    .sidebar-nav a {
        padding: 14px 20px;
        font-size: 15px;
        min-height: 48px;
    }

    .main-content {
        margin-left: 0;
        max-width: 100%;
        padding: 16px;
        padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    }

    .dashboard-layout {
        padding-top: 48px;
    }

    .page-header {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        margin-bottom: 20px;
    }

    .page-header h1 {
        font-size: 22px;
    }

    .page-header .btn,
    .page-header > button {
        width: 100%;
        justify-content: center;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        margin-bottom: 20px;
    }

    .stat-card {
        padding: 16px;
    }

    .stat-card .value {
        font-size: 24px;
    }

    .card {
        padding: 16px;
        margin-bottom: 16px;
        border-radius: var(--radius-sm);
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        margin-bottom: 14px;
    }

    .card-header .btn {
        width: 100%;
        justify-content: center;
    }

    .table-wrap {
        margin: 0 -16px;
        padding: 0 16px;
        -webkit-overflow-scrolling: touch;
    }

    table {
        min-width: 560px;
    }

    th, td {
        padding: 10px 12px;
        font-size: 13px;
    }

    .filter-bar {
        flex-direction: column;
        gap: 10px;
    }

    .filter-bar select,
    .filter-bar input {
        width: 100%;
        min-height: 44px;
        font-size: 16px;
    }

    .tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        margin-bottom: 16px;
        padding-bottom: 2px;
    }

    .tab {
        flex-shrink: 0;
        padding: 10px 16px;
        min-height: 44px;
    }

    .modal {
        width: calc(100% - 24px);
        max-width: none;
        padding: 24px 20px;
        margin: 12px;
        max-height: calc(100vh - 24px - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
    }

    .modal-actions {
        flex-direction: column-reverse;
        gap: 10px;
    }

    .modal-actions .btn {
        width: 100%;
        min-height: 44px;
    }

    .toast-container {
        left: 16px;
        right: 16px;
        top: auto;
        bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    }

    .toast {
        width: 100%;
        text-align: center;
    }

    .chart-container {
        height: 220px;
    }

    .hero {
        padding: 100px 16px 60px;
    }

    .hero h1 { font-size: 32px; }
    .hero-actions { flex-direction: column; width: 100%; }
    .hero-actions .btn { width: 100%; min-height: 48px; }

    .section { padding: 60px 16px; }
    .section-header { margin-bottom: 40px; }
    .section-header h2 { font-size: 28px; }
    .section-header p { font-size: 16px; }

    .features-grid { grid-template-columns: 1fr; gap: 12px; }
    .feature-card { padding: 24px 20px; }
    .steps { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }

    .auth-wrap {
        padding: 72px 16px 32px;
        align-items: flex-start;
    }

    .auth-card {
        padding: 28px 20px;
        border-radius: var(--radius-md);
    }

    .auth-card h1 { font-size: 24px; }

    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px;
        min-height: 48px;
    }

    .btn {
        min-height: 44px;
    }

    .btn-lg {
        min-height: 48px;
    }

    .pagination {
        flex-wrap: wrap;
    }

    .pagination button {
        min-width: 44px;
        min-height: 44px;
    }

    .table-actions {
        white-space: normal;
        min-width: 100px;
    }

    .table-actions .btn {
        margin: 2px 4px 2px 0;
        padding: 6px 10px;
        font-size: 12px;
    }

    .code-block {
        font-size: 12px;
        word-break: break-all;
    }

    .modal .tabs {
        margin-bottom: 12px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-card .value {
        font-size: 28px;
    }

    .nav-actions .btn-ghost {
        padding: 6px 12px;
        font-size: 12px;
    }
}

.copy-btn { cursor: pointer; opacity: 0.6; transition: opacity var(--transition); }
.copy-btn:hover { opacity: 1; }

.empty-state { text-align: center; padding: 48px 24px; color: var(--color-text-secondary); }
.empty-state p { margin-bottom: 16px; }

.filter-bar { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.filter-bar select, .filter-bar input {
    padding: 8px 12px; background: var(--color-bg); border: 1px solid var(--color-border);
    border-radius: var(--radius-sm); color: var(--color-text); font-size: 13px; font-family: inherit;
}

.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 24px; }
.pagination button {
    padding: 8px 14px; background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-sm); color: var(--color-text); cursor: pointer; font-family: inherit; font-size: 13px;
}
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }
.pagination button.active { background: var(--color-accent); border-color: var(--color-accent); }