@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&family=Inter:wght@300;400;500;700&display=swap');

:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #121824;
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    
    --primary: #1c98d7;
    --primary-hover: #157cb1;
    --success: #67b134;
    --success-hover: #539028;
    --warning: #ffbb00;
    --danger: #ef4444;
    
    --glass-bg: rgba(18, 24, 36, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: rgba(0, 0, 0, 0.3);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-main);
    font-family: var(--font-body);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Background Gradients */
.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
}

.bg-gradient::before,
.bg-gradient::after {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.12;
    mix-blend-mode: screen;
    pointer-events: none;
}

.bg-gradient::before {
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    top: -10%;
    left: -10%;
    animation: float1 25s infinite alternate ease-in-out;
}

.bg-gradient::after {
    background: radial-gradient(circle, var(--success) 0%, transparent 70%);
    bottom: -10%;
    right: -10%;
    animation: float2 30s infinite alternate ease-in-out;
}

@keyframes float1 {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(120px, 80px) scale(1.2); }
    100% { transform: translate(-60px, 150px) scale(0.9); }
}

@keyframes float2 {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-150px, -80px) scale(0.8); }
    100% { transform: translate(100px, 60px) scale(1.15); }
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 15px 0;
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 800;
    color: var(--text-main);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo span {
    color: var(--primary);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 12px;
    font-weight: 600;
    font-family: var(--font-heading);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    outline: none;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-main);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-muted);
}

/* Hero Section */
.hero {
    padding: 80px 0 60px;
    text-align: center;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #fff 0%, #a5d3ed 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 35px;
    line-height: 1.6;
}

/* Glass Card styling */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: 0 8px 32px var(--glass-shadow);
}

/* Auth Modal/Box */
.auth-box {
    max-width: 400px;
    margin: 0 auto 50px;
    padding: 30px;
}

.auth-box h3 {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 16px;
    transition: all 0.2s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.08);
}

/* Pricing Grid */
.pricing {
    padding: 40px 0 80px;
}

.pricing-title {
    text-align: center;
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 40px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.price-card {
    padding: 35px 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.price-card.popular {
    border-color: var(--warning);
}

.price-card.popular::before {
    content: 'САМЫЙ ВЫГОДНЫЙ';
    position: absolute;
    top: 20px;
    right: -40px;
    background: var(--warning);
    color: #000;
    font-family: var(--font-heading);
    font-size: 10px;
    font-weight: 800;
    padding: 4px 40px;
    transform: rotate(45deg);
}

.price-card .term {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.price-card .price {
    font-family: var(--font-heading);
    font-size: 40px;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 15px;
    display: flex;
    align-items: baseline;
}

.price-card .price span {
    font-size: 24px;
    color: var(--text-muted);
    font-weight: 400;
}

.price-card .features {
    list-style: none;
    text-align: center;
    margin-bottom: 30px;
    color: var(--text-muted);
    font-size: 15px;
}

.price-card .features li {
    margin-bottom: 10px;
}

.price-card .btn {
    width: 100%;
    margin-top: auto;
}

/* Device Tabs */
.tabs-section {
    padding: 60px 0 80px;
}

.tabs-section h2 {
    text-align: center;
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 40px;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 10px 20px;
    border-radius: 30px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-family: var(--font-heading);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab-btn.active, .tab-btn:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.tab-content {
    display: none;
    padding: 40px;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

.device-instruction {
    display: flex;
    gap: 40px;
    align-items: center;
    flex-wrap: wrap;
}

.device-instruction .left {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.device-instruction .left img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
}

.device-instruction .right {
    flex: 1.5;
    min-width: 300px;
}

.device-instruction .right h3 {
    font-family: var(--font-heading);
    font-size: 24px;
    margin-bottom: 20px;
}

.instruction-steps {
    list-style: none;
}

.instruction-steps li {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    align-items: flex-start;
}

.instruction-steps .step-num {
    background: rgba(28, 152, 215, 0.15);
    color: var(--primary);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
}

.instruction-steps .step-text span {
    display: block;
    font-weight: 600;
    margin-bottom: 4px;
}

.instruction-steps .step-text p {
    color: var(--text-muted);
    font-size: 14px;
}

/* User Cabinet Panel */
.cabinet-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 30px;
    padding: 40px 0;
    align-items: start;
}

@media (max-width: 900px) {
    .cabinet-grid {
        grid-template-columns: 1fr;
    }
}

.profile-card {
    padding: 30px;
}

.profile-header {
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 20px;
    margin-bottom: 20px;
}

.profile-header h2 {
    font-family: var(--font-heading);
    font-size: 24px;
}

.profile-header p {
    color: var(--text-muted);
    font-size: 14px;
}

.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 30px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    margin-top: 10px;
}

.status-active {
    background: rgba(103, 177, 52, 0.15);
    color: var(--success);
}

.status-inactive {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.info-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    font-size: 15px;
}

.info-row span:first-child {
    color: var(--text-muted);
}

.info-row span:last-child {
    font-weight: 600;
}

/* Connection config box */
.config-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px dashed var(--glass-border);
    border-radius: 16px;
    padding: 20px;
    margin-top: 25px;
}

.config-box h4 {
    font-family: var(--font-heading);
    margin-bottom: 15px;
    font-size: 16px;
}

.sub-link-container {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.sub-link-input {
    flex: 1;
    font-family: monospace;
    font-size: 12px;
}

.qr-container {
    display: flex;
    justify-content: center;
    margin: 20px 0 10px;
}

.qr-container canvas {
    background: #fff;
    padding: 10px;
    border-radius: 12px;
}

/* Referrals section */
.referral-box {
    margin-top: 30px;
    border-top: 1px solid var(--glass-border);
    padding-top: 25px;
}

.referral-box h4 {
    font-family: var(--font-heading);
    margin-bottom: 10px;
    font-size: 18px;
}

.referral-box p {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 15px;
}

/* Footer */
footer {
    border-top: 1px solid var(--glass-border);
    padding: 30px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    margin-top: auto;
}

/* Alert Notification popup */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--bg-secondary);
    border-left: 4px solid var(--primary);
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.5);
    z-index: 1000;
    animation: slideIn 0.3s ease;
    display: none;
}

.toast.success {
    border-color: var(--success);
}

.toast.error {
    border-color: var(--danger);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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