:root {
    --bg-color: #06070a;
    --card-bg: #0d0f14;
    --text-main: #f0f0f0;
    --text-muted: #8b949e;
    --cyan-main: #00d4ff;
    --border-color: #1e222b;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Inter', sans-serif; }
body { background-color: var(--bg-color); color: var(--text-main); }

/* Header */
.main-header { display: flex; justify-content: space-between; align-items: center; padding: 20px 80px; background: rgba(13, 15, 20, 0.9); border-bottom: 1px solid var(--border-color); position: fixed; width: 100%; top: 0; z-index: 1000; }
.logo { font-size: 26px; font-weight: 800; color: var(--cyan-main); letter-spacing: -1px;}
.nav-links a { color: var(--text-muted); text-decoration: none; margin: 0 20px; font-weight: 500; transition: 0.2s; }
.nav-links a.active, .nav-links a:hover { color: var(--text-main); }
.auth-btn { background: transparent; border: 1px solid var(--border-color); color: var(--text-main); padding: 10px 20px; border-radius: 6px; cursor: pointer; transition: 0.2s;}
.auth-btn:hover { border-color: var(--cyan-main); color: var(--cyan-main); }

/* Views */
.view-section { display: none; padding: 120px 80px 60px; max-width: 1400px; margin: 0 auto; animation: fadeIn 0.4s; }
.active-view { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Hero */
.hero-container { text-align: center; max-width: 800px; margin: 100px auto; }
.main-title { font-size: 54px; font-weight: 800; margin-bottom: 20px; line-height: 1.1; }
.main-description { font-size: 18px; color: var(--text-muted); margin-bottom: 40px; }
.primary-btn { background: var(--cyan-main); color: #000; border: none; padding: 15px 30px; font-size: 16px; font-weight: bold; border-radius: 8px; cursor: pointer; transition: 0.2s; }
.primary-btn:hover { background: #00b8cc; }

/* Tabs */
.plan-selector { display: flex; justify-content: center; gap: 15px; margin-bottom: 50px; }
.tab-btn { background: var(--card-bg); border: 1px solid var(--border-color); color: var(--text-muted); padding: 12px 25px; font-weight: 600; cursor: pointer; border-radius: 8px; }
.tab-btn.active, .tab-btn:hover { background: rgba(0, 212, 255, 0.1); color: var(--cyan-main); border-color: var(--cyan-main); }
.tab-content { display: none; }
.active-tab { display: block; }

/* Cards */
.plans-grid { display: flex; justify-content: center; gap: 25px; flex-wrap: wrap; }
.plan-card { background: var(--card-bg); border: 1px solid var(--border-color); padding: 40px; border-radius: 16px; width: 300px; transition: 0.3s; position: relative;}
.plan-card:hover { border-color: var(--cyan-main); transform: translateY(-5px); }
.featured-card { border-color: var(--cyan-main); background: linear-gradient(180deg, rgba(0,212,255,0.05) 0%, #0d0f14 100%); }
.new-tag { position: absolute; top: -12px; right: 20px; background: var(--cyan-main); color: #000; font-size: 11px; font-weight: 800; padding: 4px 10px; border-radius: 4px; }
.price-block { margin: 25px 0; }
.amount { font-size: 48px; font-weight: 800; color: var(--cyan-main); }
.currency, .period { color: var(--text-muted); font-size: 18px; }
.features-list { list-style: none; margin-bottom: 30px; }
.features-list li { margin-bottom: 12px; font-size: 14px; color: var(--text-muted); }
.icon-check { color: #00ff88; margin-right: 8px; }
.purchase-btn { width: 100%; padding: 14px; background: rgba(255,255,255,0.05); border: 1px solid var(--border-color); color: var(--text-main); font-weight: bold; border-radius: 8px; cursor: pointer; transition: 0.2s;}
.purchase-btn:hover { background: var(--cyan-main); color: #000; border-color: var(--cyan-main);}

/* Custom Builder & Generic Containers */
.custom-builder-container { display: grid; grid-template-columns: 2fr 1fr; gap: 30px; background: var(--card-bg); padding: 40px; border-radius: 16px; border: 1px solid var(--border-color); }
.custom-slider { -webkit-appearance: none; width: 100%; height: 6px; background: #1e222b; border-radius: 3px; margin: 15px 0 25px; outline: none;}
.custom-slider::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 18px; background: var(--cyan-main); border-radius: 50%; cursor: pointer;}
.slider-group label { color: var(--text-muted); }
.slider-value { float: right; color: var(--cyan-main); font-weight: bold; }

.page-title { text-align: center; margin-bottom: 40px; }
.status-container, .text-container { max-width: 800px; margin: 0 auto; background: var(--card-bg); padding: 40px; border-radius: 16px; border: 1px solid var(--border-color); }
.status-row { display: flex; justify-content: space-between; padding: 20px 0; border-bottom: 1px solid var(--border-color); font-weight: 600; }
.status-ok { color: #00ff88; }
.faq-item { margin-bottom: 30px; }
.faq-item h3 { margin-bottom: 10px; color: var(--cyan-main); }
.text-container p { margin-bottom: 20px; color: var(--text-muted); line-height: 1.6; }

/* Modals */
.modal { display: none; position: fixed; z-index: 2000; left: 0; top: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.8); backdrop-filter: blur(5px); }
.modal-content { background: var(--card-bg); margin: 10% auto; padding: 40px; border: 1px solid var(--border-color); width: 100%; max-width: 450px; border-radius: 16px; position: relative; }
.close-modal { position: absolute; right: 20px; top: 15px; color: var(--text-muted); font-size: 28px; cursor: pointer; }
.input-group input { width: 100%; padding: 14px; background: var(--bg-color); border: 1px solid var(--border-color); color: white; border-radius: 8px; margin-top: 8px; outline: none; }
.input-group input:focus { border-color: var(--cyan-main); }