:root {
    --primary-color: #0b5cff;
    --primary-hover: #004ad7;
    --text-dark: #232333;
    --text-light: #6e7480;
    --bg-light: #f7f9fa;
    --white: #ffffff;
    --border-radius: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

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

a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 5%;
    background-color: var(--white);
    border-bottom: 1px solid #eaeaea;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}
.logo span { color: var(--text-dark); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-item {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-light);
    cursor: pointer;
}
.nav-item:hover { color: var(--primary-color); }

.lang-switch {
    border: 1px solid #ddd;
    padding: 5px 10px;
    border-radius: 6px;
    font-size: 0.85rem;
    cursor: pointer;
    background: transparent;
}

.btn-signin {
    color: var(--primary-color);
    font-weight: 600;
}

.btn-signup {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    font-weight: 600;
}
.btn-signup:hover { background-color: var(--primary-hover); }

/* --- Hero Section (Ana Bölüm) --- */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4rem 5%;
    min-height: 85vh;
    background: linear-gradient(135deg, #fff 50%, #f0f4ff 100%);
}

.hero-content {
    flex: 1;
    max-width: 600px;
    padding-right: 2rem;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.hero-text {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2.5rem;
}

/* --- Toplantıya Katıl Kutusu --- */
.join-box {
    display: flex;
    gap: 10px;
    background: var(--white);
    padding: 10px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    border: 1px solid #eee;
    max-width: 480px;
}

.join-input {
    flex: 1;
    border: none;
    padding: 12px 15px;
    font-size: 1rem;
    outline: none;
}

.join-btn {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 0 25px;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
}
.join-btn:hover { background-color: var(--primary-hover); }

.or-divider {
    margin: 20px 0;
    font-size: 0.9rem;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 10px;
}
.or-divider::before, .or-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: #ddd;
}

.new-meeting-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
}
.new-meeting-btn:hover { background-color: #f0f7ff; }

/* --- Görsel Alanı --- */
.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

/* Placeholder Resim Kutusu */
.img-placeholder {
    width: 100%;
    max-width: 600px;
    height: 400px;
    background-color: #eef2ff;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(11, 92, 255, 0.1);
}

/* Basit bir SVG ikon temsili */
.grid-icon {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    width: 60%;
    height: 60%;
}
.grid-item {
    background-color: #dbeafe;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #93c5fd;
}
.grid-item.active {
    background-color: var(--primary-color);
    color: white;
    position: relative;
}
.mic-icon { width: 20px; height: 20px; background: rgba(255,255,255,0.3); border-radius: 50%; position: absolute; bottom: 10px; right: 10px;}
footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-light);
    font-size: 0.9rem;
    background-color: var(--bg-light);
}

@media (max-width: 768px) {
    .hero { flex-direction: column-reverse; text-align: center; padding-top: 2rem; }
    .hero-content { padding-right: 0; margin-top: 2rem; }
    .hero-title { font-size: 2.2rem; }
    .nav-links { display: none; } /* Basitlik için mobilde menüyü gizledim */
    .join-box { margin: 0 auto; }
    .or-divider { max-width: 480px; margin: 20px auto; }
}