:root {
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #38bdf8;
    --accent-hover: #0284c7;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
}

/* Навигация */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 10%;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid #334155;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

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

nav a {
    color: var(--text-muted);
    text-decoration: none;
    margin-right: 2rem;
    transition: color 0.2s;
}

nav a:hover { color: var(--text-main); }

.btn-login {
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
    padding: 0.5rem 1.2rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-login:hover {
    background: var(--accent);
    color: var(--bg-dark);
}

/* Главный баннер */
.hero {
    height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 1rem;
    background: radial-gradient(circle at top, #1e293b 0%, #0f172a 100%);
    margin-top: 5rem;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -1px;
}

.hero-content p {
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2rem;
    font-size: 1.2rem;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-dark);
    padding: 0.8rem 2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.2s;
}

.btn-primary:hover { background: var(--accent-hover); }

/* Блоки с услугами */
.services {
    padding: 5rem 10%;
    background: #0b0f19;
}

.services h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid #334155;
    transition: transform 0.2s;
}

.card:hover { transform: translateY(-5px); }

.card h3 { margin-bottom: 1rem; color: var(--accent); }
.card p { color: var(--text-muted); font-size: 0.95rem; }

/* Модальное окно */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(8px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--bg-card);
    padding: 3rem;
    border-radius: 16px;
    width: 100%;
    max-width: 450px;
    position: relative;
    border: 1px solid #475569;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.close-btn {
    position: absolute;
    top: 1.5rem; right: 1.5rem;
    font-size: 2rem;
    color: var(--text-muted);
    cursor: pointer;
}

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

.modal-content h2 { font-size: 1.5rem; margin-bottom: 0.25rem; }
.modal-subtitle { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 2rem; }

/* Форма */
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-size: 0.85rem; color: var(--text-muted); }

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-dark);
    border: 1px solid #475569;
    border-radius: 8px;
    color: var(--text-main);
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent);
}

.form-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    margin-bottom: 2rem;
}

.remember-me { color: var(--text-muted); cursor: pointer; }
.forgot-pass { color: var(--accent); text-decoration: none; }
.forgot-pass:hover { text-decoration: underline; }

.btn-submit {
    width: 100%;
    background: var(--accent);
    color: var(--bg-dark);
    padding: 0.75rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-submit:hover { background: var(--accent-hover); }