/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700&display=swap');

:root {
    --primary-red: #FF0000;
    --primary-blue: #3B2EFF;
    --gradient: linear-gradient(90deg, #6A00FF, #00E5FF);
    --bg-light: #ffffff;
    --text-light: #1a1a1a;
    --bg-dark: #0a0a0a;
    --text-dark: #f0f0f0;
    --card-light: #f5f5f5;
    --card-dark: #1f1f1f;
}

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

body {
    font-family: 'Montserrat', sans-serif;
    color: var(--text-light);
    background-color: var(--bg-light);
    transition: background-color 0.3s, color 0.3s;
    overflow-x: hidden;
}

body.dark-mode {
    background-color: var(--bg-dark);
    color: var(--text-dark);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    position: relative;
    z-index: 100;
}

.logo {
    font-weight: 800;
    font-size: 24px;
    color: var(--primary-blue);
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

nav ul {
    display: flex;
    gap: 20px;
}

nav a:hover {
    color: var(--primary-blue);
}

.actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.btn {
    padding: 10px 20px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: transform 0.2s;
}

.btn:hover {
    transform: scale(1.05);
}

.btn-primary {
    background: var(--gradient);
    color: white;
}

/* Hero */
.hero {
    position: relative;
    height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

#bg-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-content {
    z-index: 10;
    max-width: 800px;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
}

/* Sections */
.section {
    padding: 80px 0;
}

h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 36px;
}

/* Cards */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.card {
    background: var(--card-light);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: 0.3s;
}

.dark-mode .card {
    background: var(--card-dark);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.price {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-blue);
    margin: 15px 0;
}

/* Tariffs Tabs */
.tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
}

.tab-btn {
    padding: 10px 30px;
    border: 2px solid var(--primary-blue);
    background: transparent;
    border-radius: 30px;
    cursor: pointer;
    color: inherit;
    font-weight: 600;
}

.tab-btn.active {
    background: var(--primary-blue);
    color: white;
}

.tab-content {
    display: none;
}
.tab-content.active {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

/* Form */
.connect-form {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.connect-form input, 
.connect-form select {
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #ddd;
    background: var(--card-light);
    color: var(--text-light);
}

.dark-mode .connect-form input,
.dark-mode .connect-form select {
    background: var(--card-dark);
    color: var(--text-dark);
    border-color: #333;
}

/* Footer */
footer {
    background: var(--card-light);
    padding: 40px 0;
    margin-top: 50px;
}

.dark-mode footer {
    background: var(--card-dark);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

/* Chat Btn */
.chat-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient);
    color: white;
    border: none;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

/* Cabinet */
.cabinet-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background: var(--card-light);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.dark-mode .sidebar {
    background: var(--card-dark);
}

.main-content {
    flex: 1;
    padding: 30px;
}

.sidebar a {
    padding: 15px;
    border-radius: 8px;
    display: block;
}

.sidebar a:hover, .sidebar a.active {
    background: var(--primary-blue);
    color: white;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.dark-mode th, .dark-mode td {
    border-color: #333;
}

/* Responsive */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 15px;
    }
    .cabinet-layout {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
    }
}