:root {
    --bg: #0f1724;
    --card: #0b1220;
    --accent: #06b6d4;
    --accent-dark: #0891b2;
    --muted: #9aa4b2;
    --white: #eef2f7;
    --error: #ff6b6b;
    --success: #06d6a0;
    --warning: #ffb703;
    --radius: 10px;
    --transition: all 0.2s ease;
}

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

body {
    font-family: Inter, Segoe UI, Roboto, Arial, sans-serif;
    background: linear-gradient(180deg, #071025 0%, #061a2b 100%);
    color: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Geniş Header Stili */
.wide-header {
    background: rgba(11, 18, 32, 0.95);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    width: 100%;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    margin-bottom: 0.75rem;
    line-height: 1.2;
    font-weight: 700;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--white);
}

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

.brand {
    display: flex;
    gap: 12px;
    align-items: center;
}

.logo {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent), #7c3aed);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
}

nav a {
    color: var(--muted);
    margin-left: 18px;
    font-size: 15px;
    padding: 8px 12px;
    border-radius: var(--radius);
    transition: var(--transition);
}

nav a:hover {
    color: var(--white);
    background: rgba(255, 255, 255, 0.05);
}

section {
    padding: 60px 0;
}

/* Cards */
.card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
    padding: 24px;
    border-radius: var(--radius);
    box-shadow: 0 6px 18px rgba(2, 6, 23, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.03);
}

/* Buttons */
.btn {
    display: inline-block;
    background: var(--accent);
    color: #022;
    padding: 12px 18px;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn.ghost {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.btn.ghost:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* Hero Section */
.hero {
    display: flex;
    gap: 40px;
    align-items: center;
}

.hero-left h1 {
    margin-top: 1.8rem;
}

.hero-left {
    flex: 1;
}

.hero-right {
    width: 420px;
    max-width: 100%;
}

img.mock {
    width: 100%;
    border-radius: var(--radius);
    display: block;
}

.lead {
    color: var(--muted);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.cta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 2rem;
}

.feature {
    padding: 18px;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.03);
}

/* Grid System */
.grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* Services */
.services .item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 18px;
    background: var(--card);
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.03);
    margin-bottom: 12px;
}

.service-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

/* Pricing */
.pricing {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 1.5rem;
}

.plan {
    background: var(--card);
    padding: 24px;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.03);
    display: flex;
    flex-direction: column;
}

.plan ul {
    padding-left: 18px;
    margin: 0 0 1.5rem 0;
    flex-grow: 1;
}

.plan li {
    margin-bottom: 0.5rem;
}

.price {
    font-size: 22px;
    margin: 10px 0;
}

/* Forms */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-form input,
.contact-form textarea {
    padding: 12px;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.03);
    color: var(--white);
    resize: vertical;
    font-family: inherit;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(6, 182, 212, 0.2);
}

.muted {
    color: var(--muted);
    font-size: 0.9rem;
}

.error {
    color: var(--error);
    font-size: 0.8rem;
    margin-top: 4px;
}

/* Thank You Modal */
.thank {
    position: fixed;
    inset: 0;
    background: linear-gradient(90deg, rgba(2, 6, 23, 0.6), rgba(2, 6, 23, 0.85));
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    z-index: 50;
    padding: 20px;
}

html {
    scroll-behavior: smooth;
}

/* Anchor tıklamalarında header tarafından örtülmeyi önler (header yüksekliğine göre ayarla) */
#hizmetler,
#iletisim {
    scroll-margin-top: 90px;
    /* sticky header yüksekliğine göre değiştirin (ör. 70-100px) */
    padding-top: 8px;
    /* görsel olarak biraz boşluk */
}

/* H2'ye ekstra görsel boşluk */
#hizmetler h2, #iletisim h2 {
    margin-top: 24px;
}

.thank-card {
    background: #071223;
    padding: 32px;
    border-radius: var(--radius);
    text-align: center;
    max-width: 540px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Footer */
footer {
    padding: 30px 0;
    text-align: center;
    color: var(--muted);
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    margin-top: auto;
}

/* Utilities */
.text-center {
    text-align: center;
}

.mb-0 {
    margin-bottom: 0;
}

.mt-2 {
    margin-top: 2rem;
}

/* Responsive */
@media (max-width: 900px) {
    .hero {
        flex-direction: column-reverse;
        align-items: flex-start;
    }

    .grid {
        grid-template-columns: 1fr;
    }

    .header-container {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }

    nav {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }

    nav a {
        margin-left: 0;
        font-size: 14px;
        padding: 6px 10px;
    }

    .hero-right {
        width: 100%;
    }

    .pricing {
        grid-template-columns: 1fr;
    }

    .hero-left h1 {
        margin-top: -1.5rem;
    }
}