/* ============================================
   Network Monitor - Premium Dark Theme v2.0
   ============================================ */

:root {
    /* Color Palette */
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.7);
    --bg-card-hover: rgba(30, 41, 59, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --border-glass: rgba(255, 255, 255, 0.06);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --accent-blue: #3b82f6;
    --accent-blue-glow: rgba(59, 130, 246, 0.3);
    --accent-cyan: #06b6d4;
    --accent-green: #10b981;
    --accent-green-glow: rgba(16, 185, 129, 0.25);
    --accent-red: #ef4444;
    --accent-red-glow: rgba(239, 68, 68, 0.25);
    --accent-amber: #f59e0b;
    --accent-purple: #8b5cf6;

    /* Gradients */
    --gradient-online: linear-gradient(135deg, #10b981, #059669);
    --gradient-offline: linear-gradient(135deg, #ef4444, #dc2626);
    --gradient-header: linear-gradient(135deg, #1e293b, #0f172a);
    --gradient-blue: linear-gradient(135deg, #3b82f6, #2563eb);
    --gradient-cyan: linear-gradient(135deg, #06b6d4, #0891b2);
    --gradient-purple: linear-gradient(135deg, #8b5cf6, #7c3aed);

    /* Spacing */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* ---- Background Particles ---- */
.bg-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.bg-particles::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(circle at 20% 30%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.03) 0%, transparent 50%);
    animation: bgFloat 20s ease-in-out infinite;
}

@keyframes bgFloat {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    33% {
        transform: translate(2%, -2%) rotate(1deg);
    }

    66% {
        transform: translate(-1%, 1%) rotate(-1deg);
    }
}

/* ---- App Container ---- */
.app-container {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px 32px;
}

/* ---- Header ---- */
.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 28px;
    background: var(--gradient-header);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-xl);
    margin-bottom: 20px;
    backdrop-filter: blur(20px);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

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

.logo-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-blue);
    border-radius: var(--radius-md);
    color: white;
    box-shadow: 0 4px 15px var(--accent-blue-glow);
}

.logo h1 {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #f1f5f9, #cbd5e1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-top: 2px;
}

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

.last-update {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: var(--bg-glass);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-glass);
}

.update-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-green);
    animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(0.8);
    }
}

.btn-refresh {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-refresh:hover {
    background: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
    box-shadow: 0 4px 15px var(--accent-blue-glow);
    transform: rotate(90deg);
}

.btn-refresh.spinning svg {
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ---- Add Host Section ---- */
.add-host-section {
    margin-bottom: 20px;
}

.add-host-form {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
}

.form-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: rgba(59, 130, 246, 0.12);
    color: var(--accent-blue);
    flex-shrink: 0;
}

.form-input {
    flex: 1;
    min-width: 0;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.85rem;
    outline: none;
    transition: all var(--transition-fast);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
    background: rgba(255, 255, 255, 0.06);
}

.form-input.shake {
    animation: shakeInput 0.4s ease;
    border-color: var(--accent-red);
}

@keyframes shakeInput {

    0%,
    100% {
        transform: translateX(0);
    }

    20% {
        transform: translateX(-6px);
    }

    40% {
        transform: translateX(6px);
    }

    60% {
        transform: translateX(-4px);
    }

    80% {
        transform: translateX(4px);
    }
}

.btn-add-host {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--gradient-blue);
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
    flex-shrink: 0;
}

.btn-add-host:hover {
    box-shadow: 0 4px 20px var(--accent-blue-glow);
    transform: translateY(-1px);
}

.btn-add-host:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-add-host.loading {
    pointer-events: none;
    opacity: 0.7;
}

/* ---- Summary Grid ---- */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.summary-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
    transition: all var(--transition-normal);
}

.summary-card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.summary-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.summary-total .summary-icon {
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent-blue);
}

.summary-online .summary-icon {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-green);
}

.summary-offline .summary-icon {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
}

.summary-latency .summary-icon {
    background: rgba(139, 92, 246, 0.15);
    color: var(--accent-purple);
}

.summary-recording .summary-icon {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-red);
}

.summary-info {
    display: flex;
    flex-direction: column;
}

.summary-value {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.summary-online .summary-value {
    color: var(--accent-green);
}

.summary-offline .summary-value {
    color: var(--accent-red);
}

.summary-latency .summary-value {
    color: var(--accent-purple);
}

.summary-recording .summary-value {
    color: var(--accent-red);
}

.summary-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ---- Section Header ---- */
.hosts-section {
    margin-bottom: 32px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.auto-refresh-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--accent-green);
    background: rgba(16, 185, 129, 0.08);
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid rgba(16, 185, 129, 0.15);
    font-weight: 500;
}

.pulse-ring {
    position: relative;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-green);
}

.pulse-ring::after {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid var(--accent-green);
    animation: pulseRing 2s ease-out infinite;
}

@keyframes pulseRing {
    0% {
        transform: scale(0.5);
        opacity: 1;
    }

    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

/* ---- Hosts Grid ---- */
.hosts-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

/* ---- Host Card ---- */
.host-card {
    position: relative;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
    transition: all var(--transition-normal);
    overflow: hidden;
}

.host-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    transition: all var(--transition-normal);
}

.host-card.online::before {
    background: var(--gradient-online);
    box-shadow: 0 2px 10px var(--accent-green-glow);
}

.host-card.offline::before {
    background: var(--gradient-offline);
    box-shadow: 0 2px 10px var(--accent-red-glow);
}

.host-card:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.host-card.online:hover {
    border-color: rgba(16, 185, 129, 0.2);
}

.host-card.offline:hover {
    border-color: rgba(239, 68, 68, 0.2);
}

/* Recording indicator on card */
.host-card.recording {
    border-color: rgba(239, 68, 68, 0.3);
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.08);
}

.host-card.recording::after {
    content: '';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-red);
    animation: recordBlink 1s ease-in-out infinite;
}

@keyframes recordBlink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.3;
    }
}

.card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
}

.card-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.host-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.2;
}

.host-ip {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    margin-top: 4px;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    flex-shrink: 0;
}

.status-badge.online {
    background: rgba(16, 185, 129, 0.12);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-badge.offline {
    background: rgba(239, 68, 68, 0.12);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.status-badge.online .status-dot {
    background: var(--accent-green);
    box-shadow: 0 0 6px var(--accent-green);
    animation: dotPulse 2s ease-in-out infinite;
}

.status-badge.offline .status-dot {
    background: var(--accent-red);
    box-shadow: 0 0 6px var(--accent-red);
}

/* Card Metrics */
.card-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.metric {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.metric-label {
    font-size: 0.68rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.metric-value {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.host-card.online .metric-value.latency-value {
    color: var(--accent-cyan);
}

.host-card.offline .metric-value.latency-value {
    color: var(--accent-red);
}

/* Uptime Bar */
.uptime-bar-container {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--border-glass);
}

.uptime-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.uptime-label {
    font-size: 0.68rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.uptime-percent {
    font-size: 0.78rem;
    font-weight: 700;
}

.host-card.online .uptime-percent {
    color: var(--accent-green);
}

.host-card.offline .uptime-percent {
    color: var(--accent-red);
}

.uptime-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    overflow: hidden;
}

.uptime-fill {
    height: 100%;
    border-radius: 4px;
    transition: width var(--transition-slow);
}

.host-card.online .uptime-fill {
    background: var(--gradient-online);
}

.host-card.offline .uptime-fill {
    background: var(--gradient-offline);
}

/* ---- Card Actions ---- */
.card-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--border-glass);
}

.btn-record {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.72rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    flex: 1;
    justify-content: center;
}

.btn-record:hover {
    background: rgba(239, 68, 68, 0.12);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--accent-red);
}

.btn-record.active {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.4);
    color: var(--accent-red);
}

.record-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    transition: all var(--transition-normal);
}

.btn-record.active .record-dot {
    background: var(--accent-red);
    box-shadow: 0 0 8px var(--accent-red);
    animation: recordBlink 1s ease-in-out infinite;
}

.btn-record:hover .record-dot {
    background: var(--accent-red);
}

.btn-graph {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.72rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-graph:hover {
    background: rgba(6, 182, 212, 0.12);
    border-color: rgba(6, 182, 212, 0.3);
    color: var(--accent-cyan);
}

.btn-delete {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-normal);
    flex-shrink: 0;
}

.btn-delete:hover {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--accent-red);
}

/* ---- Graph Modal ---- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    width: 90%;
    max-width: 900px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transform: scale(0.95) translateY(20px);
    transition: transform var(--transition-normal);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
}

.modal-overlay.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-glass);
    background: var(--gradient-header);
}

.modal-title {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
}

.modal-title svg {
    color: var(--accent-cyan);
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--accent-red);
}

.modal-body {
    padding: 24px;
    height: 400px;
}

.modal-body canvas {
    width: 100% !important;
    height: 100% !important;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    border-top: 1px solid var(--border-glass);
    background: rgba(255, 255, 255, 0.01);
}

.modal-info {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.btn-modal-refresh {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-modal-refresh:hover {
    background: rgba(59, 130, 246, 0.12);
    border-color: rgba(59, 130, 246, 0.3);
    color: var(--accent-blue);
}

/* ---- Toast Notification ---- */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    padding: 12px 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 500;
    z-index: 2000;
    opacity: 0;
    transition: all var(--transition-normal);
    backdrop-filter: blur(16px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    pointer-events: none;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast-success {
    border-color: rgba(16, 185, 129, 0.3);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), var(--bg-secondary));
}

.toast-error {
    border-color: rgba(239, 68, 68, 0.3);
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), var(--bg-secondary));
}

/* ---- Loading State ---- */
.loading-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--text-muted);
    gap: 16px;
}

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border-glass);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ---- Footer ---- */
.app-footer {
    text-align: center;
    padding: 24px;
    color: var(--text-muted);
    font-size: 0.78rem;
    position: relative;
    z-index: 1;
}

/* ---- Status Change Animation ---- */
@keyframes statusChange {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.02);
    }

    100% {
        transform: scale(1);
    }
}

.host-card.status-changed {
    animation: statusChange 0.5s ease;
}

/* ---- Responsive ---- */
@media (max-width: 1200px) {
    .hosts-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .summary-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 900px) {
    .app-container {
        padding: 16px;
    }

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

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

    .app-header {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }

    .header-right {
        width: 100%;
        justify-content: space-between;
    }

    .add-host-form {
        flex-wrap: wrap;
    }

    .form-input {
        min-width: 120px;
    }

    .modal-body {
        height: 300px;
    }
}

@media (max-width: 600px) {
    .summary-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

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

    .summary-card {
        padding: 14px 16px;
    }

    .summary-value {
        font-size: 1.4rem;
    }

    .add-host-form {
        flex-direction: column;
    }

    .form-input {
        width: 100%;
    }

    .btn-add-host {
        width: 100%;
        justify-content: center;
    }

    .modal-content {
        width: 95%;
    }

    .modal-body {
        height: 250px;
        padding: 16px;
    }
}