:root {
    --bg: #0a0a0a;
    --gold: #c5a059;
    --white: #ffffff;
    --gray: #888888;
    --border: #1f1f1f;
}

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

body {
    background-color: var(--bg);
    color: var(--white);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
}

/* Navigasyon */
header {
    padding: 30px 5%;
    border-bottom: 1px solid var(--border);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.btn-menu {
    text-decoration: none;
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    border: 1px solid var(--border);
    padding: 10px 20px;
    transition: 0.3s;
}

.btn-menu:hover {
    border-color: var(--gold);
    color: var(--gold);
}

.brand {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.brand span {
    color: var(--gold);
}

.spacer { width: 100px; }

/* Hero */
.hero {
    max-width: 1400px;
    margin: 80px auto;
    padding: 0 5%;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero p {
    color: var(--gray);
    font-size: 1.1rem;
    max-width: 600px;
}

/* Bölümler */
.curriculum {
    max-width: 1400px;
    margin: 0 auto 100px;
    padding: 0 5%;
}

.chapter {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 40px 0;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

.chapter.active:hover {
    padding-left: 15px;
    border-bottom-color: var(--gold);
}

.ch-info {
    display: flex;
    align-items: center;
    gap: 40px;
}

.ch-number {
    font-size: 1.2rem;
    font-weight: 300;
    color: var(--gold);
}

.ch-text h3 {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.ch-text p {
    color: var(--gray);
    font-size: 0.95rem;
    max-width: 500px;
}

.ch-status {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--gold);
}

.chapter.locked {
    opacity: 0.3;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .ch-info { gap: 20px; }
    .spacer { display: none; }
    .ch-status { display: none; }
}