:root {
    --bg: #0f0f15;
    --text: #e0e0ff;
    --text-muted: #a0a0cc;
    --accent: #00d4ff;
    --accent-dark: #0099bb;
    --surface: #1a1a24;
    --border: #2a2a38;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    min-height: 100vh;
}

h1, h2, h3 {
    font-family: 'EB Garamond', serif;
    font-weight: 500;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

.lang-switch {
    position: fixed;
    top: 1.5rem;
    right: 2rem;
    z-index: 100;
}

.lang-btn {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    transition: all 0.3s;
}

.lang-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
}

/* Hero */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    text-align: center;
    background: linear-gradient(to bottom, rgba(0,212,255,0.05), transparent);
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 4.5rem;
    margin-bottom: 0.5rem;
    color: var(--accent);
}

.tagline {
    font-size: 1.8rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.intro {
    font-size: 1.3rem;
    max-width: 720px;
    margin: 0 auto 2.5rem;
    color: var(--text-muted);
}

.btn {
    display: inline-block;
    padding: 0.9rem 2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
}

.btn.primary {
    background: var(--accent);
    color: #000;
}

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

/* Sections */
.section {
    padding: 8rem 0;
}

.core, .framework, .contact {
    background: var(--surface);
}

h2 {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--accent);
}

.principles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.principle {
    text-align: center;
    padding: 2rem;
    background: rgba(255,255,255,0.03);
    border-radius: 12px;
    border: 1px solid var(--border);
}

.steps {
    list-style: none;
    max-width: 700px;
    margin: 2rem auto;
    font-size: 1.2rem;
}

.steps li {
    margin: 1.5rem 0;
    padding-left: 2rem;
    position: relative;
}

.steps li::before {
    content: "→";
    color: var(--accent);
    position: absolute;
    left: 0;
}

/* Form */
.contact-form {
    max-width: 600px;
    margin: 3rem auto;
}

.form-row {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

input, textarea {
    width: 100%;
    padding: 0.9rem;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 6px;
    font-family: inherit;
}

textarea {
    resize: vertical;
}

button[type="submit"] {
    width: 100%;
    margin-top: 1rem;
}

/* Footer */
footer {
    padding: 3rem 0;
    text-align: center;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
}

.social a {
    color: var(--text-muted);
    margin: 0 1rem;
    text-decoration: none;
}

.social a:hover {
    color: var(--accent);
}