/* ============================================================
   Master Prompter - Ana Stil Dosyası
   ============================================================ */

/* ---- CSS Variables ---- */
:root {
    --color-bg: #0a0a0f;
    --color-bg-alt: #12121a;
    --color-bg-card: #16161f;
    --color-bg-card-hover: #1c1c28;
    --color-surface: #1e1e2a;
    --color-border: #2a2a3a;
    --color-border-light: #3a3a4a;

    --color-text: #e8e8ef;
    --color-text-muted: #8888a0;
    --color-text-dim: #5a5a72;

    --color-primary: #6c5ce7;
    --color-primary-light: #8577ed;
    --color-primary-dark: #5a4bd6;
    --color-primary-glow: rgba(108, 92, 231, 0.25);

    --color-accent: #00d2ff;
    --color-accent-glow: rgba(0, 210, 255, 0.2);

    --color-success: #00c48c;
    --color-warning: #ffaa00;
    --color-danger: #ff4757;

    --font-heading: 'Space Grotesk', system-ui, sans-serif;
    --font-body: 'DM Sans', system-ui, sans-serif;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 8px 32px rgba(0,0,0,0.4);
    --shadow-lg: 0 16px 64px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 40px var(--color-primary-glow);

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --container-max: 1200px;
    --nav-height: 72px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-height); }
body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a { color: var(--color-primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent); }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ---- Container ---- */
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }

/* ---- Buttons ---- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 14px 32px; border-radius: var(--radius-md); font-family: var(--font-heading);
    font-weight: 600; font-size: 0.95rem; border: none; cursor: pointer;
    transition: all var(--transition); text-decoration: none;
}
.btn-primary {
    background: var(--color-primary); color: #fff;
    box-shadow: 0 4px 20px var(--color-primary-glow);
}
.btn-primary:hover { background: var(--color-primary-light); transform: translateY(-2px); color: #fff; box-shadow: 0 8px 30px var(--color-primary-glow); }
.btn-secondary { background: var(--color-surface); color: var(--color-text); border: 1px solid var(--color-border); }
.btn-secondary:hover { background: var(--color-bg-card-hover); border-color: var(--color-border-light); color: var(--color-text); }
.btn-outline { background: transparent; color: var(--color-text); border: 1px solid var(--color-border-light); }
.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary-light); }
.btn-lg { padding: 16px 40px; font-size: 1.05rem; border-radius: var(--radius-lg); }

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(10, 10, 15, 0.8); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent; transition: all var(--transition);
}
.site-nav.scrolled { border-bottom-color: var(--color-border); }
.nav-container { display: flex; align-items: center; justify-content: space-between; height: var(--nav-height); }
.nav-brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-heading); font-weight: 700; font-size: 1.15rem; color: var(--color-text); }
.nav-brand:hover { color: var(--color-text); }
.nav-brand img { border-radius: 8px; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { color: var(--color-text-muted); font-size: 0.9rem; font-weight: 500; transition: color var(--transition); }
.nav-links a:hover { color: var(--color-text); }
.nav-cta {
    background: var(--color-primary) !important; color: #fff !important;
    padding: 10px 24px !important; border-radius: var(--radius-md) !important;
}
.nav-cta:hover { background: var(--color-primary-light) !important; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--color-text); margin: 6px 0; transition: all var(--transition); border-radius: 2px; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
    position: relative; min-height: 100vh; display: flex; align-items: center;
    padding-top: var(--nav-height); overflow: hidden;
}
.hero-bg {
    position: absolute; inset: 0; z-index: 0;
    background:
        radial-gradient(ellipse 60% 50% at 20% 50%, var(--color-primary-glow), transparent),
        radial-gradient(ellipse 40% 40% at 80% 30%, var(--color-accent-glow), transparent),
        var(--color-bg);
}
.hero-container { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
.hero-title { font-family: var(--font-heading); font-size: clamp(2.5rem, 5vw, 4.2rem); font-weight: 700; line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 24px; }
.hero-title span { background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-subtitle { font-size: 1.15rem; color: var(--color-text-muted); line-height: 1.7; margin-bottom: 36px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* Phone Mockup */
.phone-mockup {
    width: 280px; margin: 0 auto; background: #1a1a24; border-radius: 36px;
    padding: 12px; box-shadow: var(--shadow-lg), 0 0 80px var(--color-primary-glow);
    border: 1px solid var(--color-border);
}
.phone-notch { width: 100px; height: 24px; background: #0a0a0f; border-radius: 0 0 16px 16px; margin: 0 auto 8px; }
.phone-screen { background: #0d0d14; border-radius: 24px; overflow: hidden; aspect-ratio: 9/16; position: relative; }
.prompter-demo { padding: 32px 20px; height: 100%; display: flex; flex-direction: column; justify-content: center; }
.demo-text { font-size: 1.1rem; color: #fff; line-height: 1.8; animation: scrollDemo 8s ease-in-out infinite; }
.demo-controls { position: absolute; bottom: 16px; left: 50%; transform: translateX(-50%); display: flex; align-items: center; gap: 12px; }
.demo-dot { width: 10px; height: 10px; background: var(--color-primary); border-radius: 50%; }
.demo-dot.red { background: var(--color-danger); }
.demo-bar { width: 60px; height: 4px; background: var(--color-border-light); border-radius: 4px; position: relative; overflow: hidden; }
.demo-bar::after { content: ''; position: absolute; left: 0; top: 0; height: 100%; width: 60%; background: var(--color-accent); border-radius: 4px; animation: progress 8s ease-in-out infinite; }

@keyframes scrollDemo { 0%, 100% { transform: translateY(10px); opacity: 0.7; } 50% { transform: translateY(-20px); opacity: 1; } }
@keyframes progress { 0% { width: 0; } 100% { width: 100%; } }

/* ============================================================
   SECTION HEADERS
   ============================================================ */
.section-header { text-align: center; margin-bottom: 64px; }
.section-header h2 { font-family: var(--font-heading); font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 700; letter-spacing: -0.02em; margin-bottom: 16px; }
.section-header p { color: var(--color-text-muted); font-size: 1.1rem; max-width: 560px; margin: 0 auto; }

/* ============================================================
   FEATURES
   ============================================================ */
.features { padding: 120px 0; position: relative; }
.features::before { content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 80%; height: 1px; background: linear-gradient(90deg, transparent, var(--color-border), transparent); }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
    background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
    padding: 36px 28px; transition: all var(--transition);
}
.feature-card:hover { background: var(--color-bg-card-hover); border-color: var(--color-border-light); transform: translateY(-4px); }
.feature-icon { font-size: 2.2rem; margin-bottom: 20px; }
.feature-card h3 { font-family: var(--font-heading); font-size: 1.15rem; font-weight: 600; margin-bottom: 12px; }
.feature-card p { color: var(--color-text-muted); font-size: 0.92rem; line-height: 1.65; }

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.how-it-works { padding: 120px 0; background: var(--color-bg-alt); }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.step-card { text-align: center; padding: 24px; }
.step-number { font-family: var(--font-heading); font-size: 3rem; font-weight: 700; background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 16px; }
.step-card h3 { font-family: var(--font-heading); font-size: 1.1rem; font-weight: 600; margin-bottom: 10px; }
.step-card p { color: var(--color-text-muted); font-size: 0.9rem; }

/* ============================================================
   PRICING
   ============================================================ */
.pricing { padding: 120px 0; }
.pricing-toggle { display: flex; align-items: center; justify-content: center; gap: 16px; margin-bottom: 48px; }
.toggle-label { font-size: 0.95rem; color: var(--color-text-dim); cursor: pointer; transition: color var(--transition); }
.toggle-label.active { color: var(--color-text); font-weight: 600; }
.save-badge { display: inline-block; background: var(--color-success); color: #000; font-size: 0.7rem; font-weight: 700; padding: 2px 8px; border-radius: 20px; margin-left: 6px; vertical-align: middle; }
.toggle-switch { position: relative; width: 52px; height: 28px; cursor: pointer; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider { position: absolute; inset: 0; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 28px; transition: all var(--transition); }
.toggle-slider::before { content: ''; position: absolute; width: 22px; height: 22px; border-radius: 50%; background: var(--color-primary); top: 2px; left: 2px; transition: all var(--transition); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(24px); }

.pricing-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 800px; margin: 0 auto; }
.pricing-card {
    background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-xl);
    padding: 40px 32px; display: flex; flex-direction: column; position: relative; transition: all var(--transition);
}
.pricing-card:hover { border-color: var(--color-border-light); }
.pricing-card.featured { border-color: var(--color-primary); box-shadow: var(--shadow-glow); }
.pricing-popular { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--color-primary); color: #fff; padding: 4px 20px; border-radius: 20px; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.05em; }
.pricing-header { margin-bottom: 28px; }
.pricing-header h3 { font-family: var(--font-heading); font-size: 1.3rem; font-weight: 600; margin-bottom: 12px; }
.pricing-price { display: flex; align-items: baseline; gap: 4px; }
.pricing-price .price { font-family: var(--font-heading); font-size: 2.5rem; font-weight: 700; }
.pricing-price .period { color: var(--color-text-muted); font-size: 0.9rem; }
.pricing-features { flex: 1; margin-bottom: 28px; }
.pricing-features li { display: flex; align-items: flex-start; gap: 10px; padding: 8px 0; color: var(--color-text-muted); font-size: 0.9rem; }
.pricing-features svg { color: var(--color-success); flex-shrink: 0; margin-top: 3px; }
.pricing-card .btn { width: 100%; }

/* ============================================================
   FAQ
   ============================================================ */
.faq { padding: 120px 0; background: var(--color-bg-alt); }
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item { border: 1px solid var(--color-border); border-radius: var(--radius-md); margin-bottom: 12px; overflow: hidden; transition: all var(--transition); }
.faq-item:hover { border-color: var(--color-border-light); }
.faq-item[open] { border-color: var(--color-primary); }
.faq-item summary {
    padding: 20px 24px; font-family: var(--font-heading); font-weight: 600; font-size: 1rem;
    cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;
    transition: color var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 1.4rem; color: var(--color-text-dim); transition: transform var(--transition); }
.faq-item[open] summary::after { content: '−'; color: var(--color-primary); }
.faq-answer { padding: 0 24px 20px; }
.faq-answer p { color: var(--color-text-muted); font-size: 0.92rem; line-height: 1.7; }

/* ============================================================
   CTA SECTION
   ============================================================ */
.cta-section {
    padding: 120px 0; text-align: center;
    background: radial-gradient(ellipse 50% 60% at 50% 100%, var(--color-primary-glow), transparent), var(--color-bg);
}
.cta-section h2 { font-family: var(--font-heading); font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 700; margin-bottom: 16px; }
.cta-section p { color: var(--color-text-muted); font-size: 1.05rem; margin-bottom: 36px; }
.app-store-badge { display: inline-block; transition: transform var(--transition); }
.app-store-badge:hover { transform: scale(1.05); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { padding: 64px 0 32px; border-top: 1px solid var(--color-border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-heading); font-weight: 700; font-size: 1.1rem; margin-bottom: 12px; }
.footer-logo img { border-radius: 8px; }
.footer-tagline { color: var(--color-text-muted); font-size: 0.9rem; }
.footer-links-col h4 { font-family: var(--font-heading); font-size: 0.85rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text-dim); margin-bottom: 16px; }
.footer-links-col li { margin-bottom: 10px; }
.footer-links-col a { color: var(--color-text-muted); font-size: 0.9rem; }
.footer-links-col a:hover { color: var(--color-text); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 24px; border-top: 1px solid var(--color-border); }
.footer-bottom p { color: var(--color-text-dim); font-size: 0.82rem; }

/* Language Switcher */
.language-switcher select {
    background: var(--color-surface); color: var(--color-text-muted); border: 1px solid var(--color-border);
    padding: 6px 12px; border-radius: var(--radius-sm); font-size: 0.82rem; cursor: pointer;
    font-family: var(--font-body);
}

/* ============================================================
   ANIMATIONS (Scroll reveal)
   ============================================================ */
.feature-card, .step-card, .pricing-card { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.feature-card.visible, .step-card.visible, .pricing-card.visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .hero-container { grid-template-columns: 1fr; text-align: center; }
    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .hero-actions { justify-content: center; }
    .hero-visual { display: none; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; position: fixed; top: var(--nav-height); left: 0; right: 0; background: rgba(10,10,15,0.98); flex-direction: column; padding: 24px; gap: 16px; border-bottom: 1px solid var(--color-border); }
    .nav-links.open { display: flex; }
    .nav-toggle { display: block; }
    .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
    .nav-toggle.active span:nth-child(2) { opacity: 0; }
    .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }
    .features-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
    .hero { min-height: auto; padding: 120px 0 80px; }
}

@media (max-width: 480px) {
    .steps-grid { grid-template-columns: 1fr; }
    .hero-actions { flex-direction: column; }
    .btn-lg { width: 100%; }
}