/* Font ve temel ayarlar - Açık Tema */
:root {
	--bg-1: #ffffff;
	--bg-2: #f5f7fa;
	--acc-1: #667eea;
	--acc-2: #764ba2;
	--acc-3: #667eea;
	--text: #1a202c;
	--muted: #718096;
	--glass: rgba(255,255,255,0.9);
	--border: #e2e8f0;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
	margin: 0;
	font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, 'Helvetica Neue', Arial, sans-serif;
	color: var(--text);
	background: #ffffff;
}

.container { width: min(1120px, 92%); margin: 0 auto; }

/* Header */
.ad-header { position: sticky; top: 0; z-index: 50; backdrop-filter: saturate(140%) blur(8px); background: rgba(255,255,255,0.95); border-bottom: 1px solid var(--border); box-shadow: 0 1px 3px rgba(0,0,0,.05); }
.ad-header .container { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.brand { display: flex; align-items: center; gap: 12px; position: relative; }
.brand-link { color: var(--text); font-weight: 800; letter-spacing: 0.2px; text-decoration: none; font-size: 18px; }
.logo-glow { width: 14px; height: 14px; border-radius: 50%; background: linear-gradient(135deg, var(--acc-1), var(--acc-2)); box-shadow: 0 0 10px rgba(102,126,234,0.4); }

.nav { display: flex; gap: 10px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 16px; border-radius: 12px; text-decoration: none; border: 1px solid var(--border); color: var(--text); transition: all .2s ease; background: #fff; }
.btn.ghost { background: #f7fafc; }
.btn.ghost:hover { background: #edf2f7; }
.btn.primary { background: linear-gradient(135deg, var(--acc-1), var(--acc-2)); border-color: transparent; color: white; box-shadow: 0 4px 12px rgba(102,126,234,0.25); }
.btn:hover { transform: translateY(-1px); }
.btn.primary:hover { box-shadow: 0 6px 16px rgba(102,126,234,0.35); }
.btn.xl { padding: 14px 22px; font-size: 16px; border-radius: 14px; }

/* Hero */
.hero { position: relative; min-height: 72vh; display: grid; place-items: center; padding: 56px 0 32px; overflow: hidden; background: linear-gradient(180deg, #f7fafc 0%, #ffffff 100%); }
#particles { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: 0.3; }
.hero-content { position: relative; z-index: 1; text-align: center; }
.headline { font-size: clamp(28px, 5vw, 52px); line-height: 1.08; margin: 0 0 14px; letter-spacing: -0.5px; color: var(--text); }
.headline .accent { background: linear-gradient(90deg, var(--acc-1), var(--acc-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.subhead { margin: 0 auto 18px; color: var(--muted); width: min(720px, 92%); font-size: 16px; line-height: 1.6; }
.cta { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 10px; }
.feature-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 18px 0 0; }
.feature { border: 1px solid var(--border); background: #fff; border-radius: 14px; padding: 12px 14px; text-align: left; box-shadow: 0 2px 4px rgba(0,0,0,.03); }
.feature strong { display: block; font-size: 14px; margin-bottom: 4px; color: var(--text); }
.feature span { color: var(--muted); font-size: 13px; }
.trust { margin-top: 18px; display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.chip { padding: 8px 12px; border: 1px solid var(--border); border-radius: 999px; background: #fff; color: var(--muted); font-size: 13px; box-shadow: 0 1px 2px rgba(0,0,0,.03); }

/* Bölümler */
.section { padding: 56px 0; background: #fff; }
.section:nth-child(even) { background: #f7fafc; }
.section h2 { font-size: 26px; margin: 0 0 20px; color: var(--text); }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step-card { position: relative; background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 18px; overflow: hidden; box-shadow: 0 2px 4px rgba(0,0,0,.03); }
.step-card .step-num { position: absolute; top: 12px; right: 12px; width: 32px; height: 32px; display: grid; place-items: center; border-radius: 10px; color: white; background: linear-gradient(135deg, var(--acc-1), var(--acc-2)); font-weight: 700; font-size: 14px; }
.step-card h3 { margin: 10px 0 8px; font-size: 18px; color: var(--text); }
.step-card p { margin: 0; color: var(--muted); }

.concepts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.concept-card { position: relative; border-radius: 18px; padding: 0; border: 1px solid var(--border); background: #fff; overflow: hidden; min-height: 240px; box-shadow: 0 2px 4px rgba(0,0,0,.03); transition: transform .2s, box-shadow .2s; }
.concept-card:hover { transform: translateY(-4px); box-shadow: 0 8px 16px rgba(0,0,0,.1); }
.concept-image { width: 100%; height: 160px; object-fit: cover; display: block; }
.concept-card h3 { margin: 16px 18px 8px; color: var(--text); font-size: 18px; }
.concept-card p { margin: 0 18px 18px; color: var(--muted); font-size: 14px; line-height: 1.5; }
.card-bg { position: absolute; inset: -20% -10% auto auto; width: 60%; height: 140%; filter: blur(32px) saturate(140%); opacity: 0.3; }
.glow-1 { background: radial-gradient(circle at 30% 30%, #667eea, #764ba2); }
.glow-2 { background: radial-gradient(circle at 30% 30%, #f093fb, #f5576c); }
.glow-3 { background: radial-gradient(circle at 30% 30%, #4facfe, #00f2fe); }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 24px 0; color: var(--muted); background: #fff; }
.footer-flex { display: grid; grid-template-columns: 1fr; gap: 10px; text-align: center; }
.footer .ft-brand { display: inline-flex; align-items: center; gap: 10px; justify-content: center; }
.footer .ft-desc { margin: 6px 0 4px; }
.footer .ft-links { display: flex; gap: 10px; align-items: center; justify-content: center; flex-wrap: wrap; }
.footer .ft-links a { color: var(--muted); text-decoration: none; }
.footer .ft-links a:hover { color: var(--text); }
.footer .ft-copy { margin: 4px 0 0; }

/* Trust */
.trust-plus .trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.trust-plus .trust-item { border: 1px solid var(--border); background: #fff; border-radius: 16px; padding: 18px; box-shadow: 0 2px 4px rgba(0,0,0,.03); }
.trust-plus .trust-item h3 { color: var(--text); }
.badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.badge { padding: 8px 12px; border-radius: 999px; background: linear-gradient(135deg, rgba(102,126,234,0.1), rgba(118,75,162,0.1)); border: 1px solid var(--border); color: var(--text); font-size: 12px; }

/* Payment */
.payment .payment-lead { color: var(--muted); margin: 4px 0 14px; }
.payment-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.payment-card { border: 1px solid var(--border); background: #fff; border-radius: 16px; padding: 18px; box-shadow: 0 2px 4px rgba(0,0,0,.03); }

/* Responsive */
@media (max-width: 900px) {
	.steps, .concepts { grid-template-columns: 1fr; }
	.ad-header .container { padding: 12px 0; }
	.trust-plus .trust-grid { grid-template-columns: 1fr; }
	.payment-grid { grid-template-columns: 1fr; }
	.feature-strip { grid-template-columns: 1fr; }
}