:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --accent-color: #f59e0b;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-color: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --radius: 12px;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar Style */
.navbar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    text-decoration: none;
}

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

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

.nav-links a {
    margin: 0 15px;
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--primary-color);
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border-radius: var(--radius);
    border: none;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

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

.btn-submit {
    width: 100%;
    background-color: var(--primary-color);
    color: white;
    padding: 14px;
    font-size: 1rem;
    margin-top: 15px;
}

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

/* Hero Section - Arka Plan Düzeltildi */
.hero-section {
    position: relative;
    background-image: url('huma-kurye-hakkimizda-acilkurye.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 100px 0;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

/* Arka Plan Karartma Katmanı (Açık Hale Getirildi) */
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.55); /* Opaklığı düşürüldü ki resim net görünsün */
    z-index: 1;
}

/* Hero İçeriği */
.hero-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.badge {
    background-color: #dbeafe;
    color: var(--primary-color);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.hero-text h1 {
    font-size: 2.5rem;
    line-height: 1.2;
    margin: 20px 0 15px 0;
    color: #ffffff; /* Karanlık arka planda yazının okunması için beyaz yapıldı */
}

.hero-text p {
    color: #e2e8f0;
    font-size: 1.1rem;
    margin-bottom: 25px;
}

.hero-features {
    display: flex;
    gap: 20px;
    color: #f1f5f9;
    font-weight: 500;
}

.hero-features i {
    color: #10b981;
}

/* Calculator Card */
.calculator-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
}

.calculator-card h2 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.input-icon {
    position: relative;
}

.input-icon i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.input-icon select, select {
    width: 100%;
    padding: 12px 12px 12px 38px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    outline: none;
    background-color: #fff;
    font-size: 0.95rem;
}

select {
    padding-left: 12px;
}

/* Custom Radio Package Boxes */
.package-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.package-box input {
    display: none;
}

.box-content {
    border: 1px solid var(--border-color);
    padding: 12px 8px;
    border-radius: var(--radius);
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.box-content i {
    font-size: 1.2rem;
}

.package-box input:checked + .box-content {
    border-color: var(--primary-color);
    background-color: #eff6ff;
    color: var(--primary-color);
    font-weight: 600;
}

/* Price Box */
.price-display {
    background-color: #f1f5f9;
    padding: 15px;
    border-radius: var(--radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
}

.price-display span {
    color: var(--text-muted);
    font-weight: 500;
}

.price-display h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
}

/* Responsiveness (Mobil Uyum) */
@media (max-width: 900px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .hero-text {
        text-align: center;
    }

    .hero-features {
        justify-content: center;
    }

    .nav-links {
        display: none;
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 50px 0;
    }
}

@media (max-width: 480px) {
    .package-options {
        grid-template-columns: 1fr;
    }
}