/* ========================================================
   Evolution GO - Design System & Custom CSS
   ======================================================== */

:root {
    /* Color Palette */
    --bg-dark: #0a0e17;
    --bg-card: rgba(18, 26, 43, 0.6);
    --bg-card-hover: rgba(26, 37, 61, 0.85);
    --sidebar-bg: #0d1321;
    --primary: #4f46e5;
    --primary-hover: #6366f1;
    --success: #10b981;
    --success-light: rgba(16, 185, 129, 0.1);
    --danger: #ef4444;
    --danger-light: rgba(239, 68, 68, 0.1);
    --warning: #f59e0b;
    --warning-light: rgba(245, 158, 11, 0.1);
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --text-dark: #4b5563;
    --border-color: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --transition-speed: 0.25s;
    
    /* Fonts */
    --font-family: 'Outfit', sans-serif;
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-family);
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
}

/* App Container */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styling */
.sidebar {
    width: 320px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    padding: 2.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    flex-shrink: 0;
}

.sidebar-header .logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-main);
}

.sidebar-header .logo span strong {
    color: var(--primary-hover);
}

.sidebar-header .icon-logo {
    color: var(--primary-hover);
    font-size: 1.8rem;
    filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.6));
}

.sidebar-header .subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    margin-left: 2.5rem;
}

/* Settings Panel */
.settings-panel {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.settings-panel h3, .status-summary h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.settings-panel h3 i, .status-summary h3 i {
    color: var(--primary-hover);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.input-group label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.input-group input {
    background-color: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.6rem 0.8rem;
    color: var(--text-main);
    font-size: 0.9rem;
    width: 100%;
    outline: none;
    transition: border-color var(--transition-speed);
}

.input-group input:focus {
    border-color: var(--primary-hover);
}

.password-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-wrapper input {
    padding-right: 2.5rem;
}

.password-wrapper .btn-icon {
    position: absolute;
    right: 0.75rem;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    outline: none;
}

.password-wrapper .btn-icon:hover {
    color: var(--text-main);
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: var(--text-main);
    border: none;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.6rem 1rem;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

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

/* Status Summary */
.status-summary {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.25rem;
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.summary-item span {
    color: var(--text-muted);
}

.summary-item strong {
    font-size: 1.1rem;
    font-weight: 600;
}

.text-success { color: var(--success); }
.text-danger { color: var(--danger); }

.sidebar-footer {
    margin-top: auto;
    font-size: 0.75rem;
    color: var(--text-dark);
    text-align: center;
}

/* Main Content Area */
.main-content {
    flex-grow: 1;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

/* Main Header */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.header-title h1 {
    font-size: 2rem;
    font-weight: 700;
}

.header-title .date-now {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.toolbar {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box i {
    position: absolute;
    left: 1rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.search-box input {
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.6rem 1rem 0.6rem 2.5rem;
    color: var(--text-main);
    font-size: 0.9rem;
    width: 260px;
    outline: none;
    transition: width var(--transition-speed), border-color var(--transition-speed), background-color var(--transition-speed);
}

.search-box input:focus {
    width: 320px;
    border-color: var(--primary-hover);
    background-color: rgba(0, 0, 0, 0.2);
}

.btn-refresh {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-main);
    cursor: pointer;
    transition: transform var(--transition-speed), background-color var(--transition-speed);
}

.btn-refresh:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: rotate(30deg);
}

.btn-refresh:active {
    transform: rotate(360deg) scale(0.9);
}

/* Filter Bar */
.filter-bar {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.25rem;
}

.filter-btn {
    background-color: transparent;
    border: 1px solid transparent;
    border-radius: 30px;
    padding: 0.5rem 1.25rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-speed);
}

.filter-btn:hover {
    color: var(--text-main);
    background-color: rgba(255, 255, 255, 0.03);
}

.filter-btn.active {
    background-color: rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.3);
    color: var(--primary-hover);
}

/* Instances Grid */
.instances-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    min-height: 400px;
}

/* Instance Card */
.instance-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.instance-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: transparent;
    transition: background var(--transition-speed);
}

.instance-card.connected::before {
    background: linear-gradient(90deg, var(--success), #34d399);
}

.instance-card.disconnected::before {
    background: linear-gradient(90deg, var(--danger), #f87171);
}

.instance-card:hover {
    transform: translateY(-6px);
    background: var(--bg-card-hover);
    box-shadow: var(--glass-shadow);
    border-color: rgba(255, 255, 255, 0.15);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.instance-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-main);
}

/* Badges */
.status-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 30px;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.status-badge.connected {
    background-color: var(--success-light);
    color: var(--success);
}

.status-badge.disconnected {
    background-color: var(--danger-light);
    color: var(--danger);
}

/* Card Body / Modem Details */
.card-body {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.info-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
}

.info-label {
    color: var(--text-muted);
}

.info-value {
    font-weight: 500;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.info-value i {
    font-size: 0.8rem;
}

/* Card Footer / Actions */
.card-footer {
    display: flex;
    gap: 0.75rem;
    margin-top: auto;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1rem;
}

.btn-card-action {
    flex-grow: 1;
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    transition: all var(--transition-speed);
}

.btn-card-action:hover {
    background-color: var(--primary);
    border-color: var(--primary);
}

.btn-card-action.btn-disconnect:hover {
    background-color: var(--danger);
    border-color: var(--danger);
}

/* Dropdown/Select for proxy */
.proxy-select-wrapper {
    position: relative;
    width: 90px;
}

.proxy-select-wrapper select {
    width: 100%;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.4rem 0.5rem;
    color: var(--text-main);
    font-size: 0.75rem;
    font-weight: 500;
    outline: none;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    transition: border-color var(--transition-speed);
}

.proxy-select-wrapper select:focus {
    border-color: var(--primary-hover);
}

.proxy-select-wrapper::after {
    content: '\f0d7';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: 0.6rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.7rem;
    color: var(--text-muted);
    pointer-events: none;
}

/* Loaders and States */
.loading-state, .error-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 5rem 0;
    color: var(--text-muted);
}

.loading-state i, .error-state i {
    font-size: 2.5rem;
    color: var(--primary-hover);
}

.error-state i {
    color: var(--danger);
}

.hidden {
    display: none !important;
}

/* Modal Styling */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-speed) ease;
}

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

.modal-card {
    background: #0f172a;
    border: 1px solid var(--border-color);
    border-radius: 24px;
    width: 90%;
    max-width: 480px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
    transform: translateY(20px);
    transition: transform var(--transition-speed) cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-backdrop.active .modal-card {
    transform: translateY(0);
}

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.btn-close-modal {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.75rem;
    cursor: pointer;
    line-height: 1;
    transition: color var(--transition-speed);
}

.btn-close-modal:hover {
    color: var(--text-main);
}

.modal-body {
    padding: 2rem;
}

.qr-container {
    min-height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #ffffff;
    border-radius: 16px;
    padding: 1.5rem;
    position: relative;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.qr-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    color: #1e293b;
    text-align: center;
}

.qr-state i {
    font-size: 2.2rem;
    color: var(--primary);
}

.qr-state.text-danger i {
    color: var(--danger);
}

.qr-state p {
    font-size: 0.9rem;
    font-weight: 500;
}

#qr-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    width: 100%;
}

#qr-image {
    max-width: 220px;
    width: 100%;
    height: auto;
    display: block;
}

.qr-instruction {
    color: #475569;
    font-size: 0.8rem;
    line-height: 1.4;
    text-align: center;
    padding: 0 0.5rem;
}

/* Modems and Tools Panel in Sidebar */
.modem-status-panel, .tools-panel {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.modem-item {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.modem-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modem-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.modem-name i {
    color: var(--text-muted);
}

.modem-badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 30px;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.modem-badge.online {
    background-color: var(--success-light);
    color: var(--success);
}

.modem-badge.unstable {
    background-color: var(--warning-light);
    color: var(--warning);
}

.modem-badge.offline {
    background-color: var(--danger-light);
    color: var(--danger);
}

.modem-badge.testing {
    background-color: rgba(99, 102, 241, 0.1);
    color: var(--primary-hover);
}

/* Quality Bar */
.quality-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    gap: 0.5rem;
}

.quality-label {
    color: var(--text-muted);
    flex-shrink: 0;
}

.quality-bar-container {
    flex-grow: 1;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.quality-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--success));
    border-radius: 4px;
    transition: width 0.5s ease-in-out;
    width: 0%;
}

.quality-val {
    font-weight: 600;
    color: var(--text-main);
    width: 30px;
    text-align: right;
    flex-shrink: 0;
}

/* Speedtest Row */
.speedtest-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
}

.speed-label {
    color: var(--text-muted);
}

.speed-val {
    font-weight: 600;
    color: var(--primary-hover);
}

/* Responsividade */
@media (max-width: 992px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 1.5rem;
    }
    
    .main-content {
        padding: 1.5rem;
    }
}