@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-color: #0b0e14;
    --grid-color: rgba(255, 255, 255, 0.03);
    --card-bg: rgba(21, 25, 34, 0.7);
    --card-border: rgba(255, 255, 255, 0.1);
    --text-main: #FFFFFF;
    --text-muted: #94A3B8;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent: #a855f7;
    --success: #10b981;
}

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

body {
    background-color: var(--bg-color);
    background-image: 
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 40px 40px;
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Glassmorphism Navbar */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(11, 14, 20, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #fff 0%, #a855f7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    line-height: 1;
}

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

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

.btn-primary {
    background: var(--primary);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    display: inline-block;
    box-shadow: 0 4px 14px 0 rgba(59, 130, 246, 0.39);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

/* Hero Section */
.hero {
    padding: 10rem 2rem 6rem;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59,130,246,0.15) 0%, rgba(11,14,20,0) 70%);
    z-index: -1;
    pointer-events: none;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Generic Section Styles */
section {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Sorun & Özellikler Cards */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.glass-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2.5rem;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease, border-color 0.3s ease;
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity 0.3s;
}

.glass-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
}

.glass-card:hover::before {
    opacity: 1;
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    position: relative;
    background: rgba(59, 130, 246, 0.1);
    width: 60px; height: 60px;
    border-radius: 12px;
    color: var(--primary);
}
.card-icon::before {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    -webkit-transform: translate(-50%, -50%);
    line-height: 1;
}

.glass-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.glass-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Çözüm Steps */
.steps-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 2rem;
}

.step-number {
    font-size: 3rem;
    font-weight: 800;
    color: transparent;
    -webkit-text-stroke: 1px var(--primary);
    margin-right: 2rem;
    opacity: 0.5;
}

.step-content h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.step-content p {
    color: var(--text-muted);
}

/* SSS */
.faq-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.faq-item {
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--card-border);
    padding: 1.5rem;
    border-radius: 12px;
}

.faq-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0;
    color: var(--primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item h4::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    transition: transform 0.3s ease;
}

.faq-item.active h4::after {
    transform: rotate(180deg);
}

.faq-item p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 1rem;
    display: none;
}

/* Story / Founder */
.story-box {
    background: linear-gradient(145deg, rgba(21, 25, 34, 0.9), rgba(11, 14, 20, 0.9));
    border: 1px solid var(--primary);
    border-radius: 16px;
    padding: 3rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    box-shadow: 0 10px 40px rgba(59, 130, 246, 0.1);
}

.story-box p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: #e2e8f0;
    font-style: italic;
    margin-bottom: 1.5rem;
}

.founder-name {
    font-weight: 600;
    color: var(--primary);
}

/* Demo Form */
.demo-section {
    max-width: 600px;
    margin: 0 auto;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 3rem;
    backdrop-filter: blur(10px);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: #cbd5e1;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    color: white;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(0,0,0,0.4);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.btn-submit {
    width: 100%;
    font-size: 1.1rem;
    padding: 1rem;
}

/* Form Messages */
#form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    display: none;
    font-weight: 500;
}

#form-message.success {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid var(--success);
}

#form-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid #ef4444;
}

/* Footer */
footer {
    border-top: 1px solid var(--card-border);
    padding: 4rem 2rem 2rem;
    text-align: center;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.footer-slogan {
    color: var(--text-muted);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s;
}

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

.privacy-note {
    font-size: 0.8rem;
    color: #64748b;
    max-width: 500px;
    margin-top: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        padding: 1rem;
    }
    .nav-links {
        display: none; /* Mobile menu can be added later */
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .step {
        flex-direction: column;
        text-align: center;
    }
    .step-number {
        margin-right: 0;
        margin-bottom: 1rem;
    }
    .faq-grid {
        grid-template-columns: 1fr;
    }
}