/* Beytil İstanbuli — tasarım sistemi
   Yön: articatering.com.tr referansı (açık zemin, modern kurumsal, turuncu/
   altın vurgu rengi, görsel ağırlıklı hero slider). Marka logosu/renkleri
   henüz teslim edilmedi; --color-primary geçici bir turuncu/amber tondur. */

:root {
  --color-bg: #ffffff;
  --color-surface: #f7f6f4;
  --color-dark: #1c1c1e;
  --color-primary: #d97b29;
  --color-primary-dark: #b5621d;
  --color-text: #232323;
  --color-muted: #6b6b6b;
  --color-border: #e6e3de;
  --color-success: #2f9e5b;
  --color-warning: #d8a23b;
  --color-error: #c9463c;

  --font-heading: "Poppins", "Segoe UI", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  --radius-sm: 6px;
  --radius-md: 14px;
  --shadow-md: 0 12px 30px rgba(20, 20, 20, 0.08);
  --container-width: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 var(--space-2);
  color: var(--color-dark);
}
h1 { font-size: clamp(2rem, 3.6vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 2.8vw, 2.3rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 var(--space-2); color: var(--color-muted); }
a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: var(--container-width); margin: 0 auto; padding: 0 var(--space-3); }
.section { padding: var(--space-6) 0; }
.section.alt { background: var(--color-surface); }
.section-title { text-align: center; margin-bottom: var(--space-4); }
.section-title .eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.9rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-outline { background: transparent; border-color: var(--color-dark); color: var(--color-dark); }
.btn-outline:hover { background: var(--color-dark); color: #fff; }
.btn-block { width: 100%; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 88px; }
.logo { font-family: var(--font-heading); font-size: 1.35rem; font-weight: 700; color: var(--color-dark); }
.logo img { height: 46px; width: auto; }
.main-nav { display: flex; align-items: center; gap: var(--space-3); }
.main-nav a { font-size: 0.9rem; font-weight: 600; color: var(--color-text); text-transform: uppercase; letter-spacing: 0.03em; }
.main-nav a:hover, .main-nav a.active { color: var(--color-primary); }
.nav-toggle { display: none; background: none; border: none; font-size: 1.6rem; cursor: pointer; color: var(--color-dark); }

@media (max-width: 900px) {
  .main-nav {
    position: fixed; inset: 88px 0 0 0; background: #fff;
    flex-direction: column; align-items: flex-start; padding: var(--space-4) var(--space-3);
    transform: translateY(-110%); transition: transform 0.25s ease; overflow-y: auto;
  }
  .main-nav.open { transform: translateY(0); }
  .main-nav a { padding: var(--space-2) 0; border-bottom: 1px solid var(--color-border); width: 100%; }
  .nav-toggle { display: block; }
}

/* Hero slider */
.hero { position: relative; height: 82vh; min-height: 480px; overflow: hidden; background: var(--color-dark); }
.hero-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity 0.8s ease;
  background-size: cover; background-position: center;
  display: flex; align-items: center;
}
.hero-slide.active { opacity: 1; }
.hero-slide::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(0,0,0,0.65), rgba(0,0,0,0.25)); }
.hero-slide-content { position: relative; z-index: 2; color: #fff; max-width: 620px; padding: 0 var(--space-3); margin: 0 auto; width: 100%; }
.hero-slide-content .eyebrow { color: var(--color-primary); text-transform: uppercase; letter-spacing: 0.2em; font-size: 0.8rem; font-weight: 700; }
.hero-slide-content h1 { color: #fff; }
.hero-slide-content p { color: rgba(255,255,255,0.85); font-size: 1.05rem; max-width: 520px; }
.hero-dots { position: absolute; bottom: var(--space-3); left: 50%; transform: translateX(-50%); z-index: 3; display: flex; gap: 0.5rem; }
.hero-dots button { width: 10px; height: 10px; border-radius: 50%; border: none; background: rgba(255,255,255,0.4); cursor: pointer; }
.hero-dots button.active { background: var(--color-primary); }

/* Kartlar / grid */
.grid { display: grid; gap: var(--space-3); grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-3); box-shadow: var(--shadow-md); }
.card .icon { font-size: 1.8rem; color: var(--color-primary); margin-bottom: var(--space-1); }
.card h3 { margin-bottom: 0.4rem; }
.card img { border-radius: var(--radius-sm); margin-bottom: var(--space-2); aspect-ratio: 4/3; object-fit: cover; }

/* Değerler (3 sütun) */
.values-grid { display: grid; gap: var(--space-3); grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); text-align: center; }
.values-grid .value-item { padding: var(--space-3); }
.values-grid .value-item .num { font-family: var(--font-heading); font-size: 2rem; color: var(--color-primary); font-weight: 700; }

/* Etkinlik/galeri grid */
.event-grid { display: grid; gap: var(--space-3); grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.event-card { position: relative; border-radius: var(--radius-md); overflow: hidden; aspect-ratio: 4/3; }
.event-card img { width: 100%; height: 100%; object-fit: cover; }
.event-card .overlay {
  position: absolute; inset: 0; background: linear-gradient(0deg, rgba(0,0,0,0.75), transparent 60%);
  display: flex; align-items: flex-end; padding: var(--space-2); color: #fff;
}
.event-card .overlay .cat { text-transform: uppercase; font-size: 0.7rem; letter-spacing: 0.1em; color: var(--color-primary); }

/* Referans logo grid */
.reference-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: var(--space-3); align-items: center; }
.reference-grid .ref-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: var(--space-2); text-align: center; color: var(--color-muted); font-size: 0.85rem; }

/* Testimonials */
.testimonial-card { background: var(--color-surface); border-radius: var(--radius-md); padding: var(--space-3); }
.testimonial-card .stars { color: var(--color-primary); margin-bottom: 0.5rem; }
.testimonial-card .author { font-weight: 600; color: var(--color-dark); margin-top: 0.5rem; }

/* Form */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-2); }
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-size: 0.85rem; color: var(--color-muted); margin-bottom: 0.35rem; font-weight: 600; }
input, select, textarea {
  width: 100%; background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  color: var(--color-text); padding: 0.75rem 0.9rem; font-family: var(--font-body); font-size: 0.95rem;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--color-primary); outline-offset: 1px; }
.field { margin-bottom: var(--space-2); }
.checkbox-field { display: flex; align-items: flex-start; gap: 0.6rem; }
.checkbox-field input { width: auto; margin-top: 0.25rem; }
.form-alert { padding: var(--space-2); border-radius: var(--radius-sm); margin-bottom: var(--space-3); }
.form-alert.success { background: rgba(47,158,91,0.1); border: 1px solid var(--color-success); color: var(--color-success); }
.form-alert.error { background: rgba(201,70,60,0.1); border: 1px solid var(--color-error); color: var(--color-error); }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }

.rating-select { display: flex; gap: 0.3rem; }
.rating-select label { display: inline; }

/* WhatsApp float */
.whatsapp-float {
  position: fixed; right: 1.2rem; bottom: 1.2rem; z-index: 60; background: #25d366; color: #05210f;
  width: 58px; height: 58px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md); font-size: 1.6rem;
}

/* Footer */
.site-footer { background: var(--color-dark); color: #d7d5d1; padding: var(--space-5) 0 var(--space-3); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--space-3); margin-bottom: var(--space-4); }
.footer-grid h4 { color: #fff; font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: var(--space-2); }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 0.5rem; }
.footer-grid a, .footer-grid p { color: #a9a7a2; font-size: 0.9rem; }
.footer-grid a:hover { color: var(--color-primary); }
.footer-bottom { border-top: 1px solid #333; padding-top: var(--space-2); display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-1); font-size: 0.8rem; color: #8a8883; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

.empty-state { text-align: center; padding: var(--space-5); color: var(--color-muted); border: 1px dashed var(--color-border); border-radius: var(--radius-md); }
.breadcrumb { font-size: 0.8rem; color: var(--color-muted); margin-bottom: var(--space-2); }
.breadcrumb a { color: var(--color-muted); }
.breadcrumb a:hover { color: var(--color-primary); }
.page-hero { padding: var(--space-5) 0 var(--space-4); text-align: center; background: var(--color-surface); border-bottom: 1px solid var(--color-border); }