/* =========================================================
   Webinar Sistemi — Genel Stil
   Dermapenworld mavi/beyaz tema
   ========================================================= */

:root {
  --blue:        #003EAB;
  --blue-dark:   #002b78;
  --blue-light:  #1e5bd6;
  --blue-50:     #eef3fc;
  --blue-100:    #d8e3f7;
  --gray-50:     #f7f9fc;
  --gray-100:    #eef1f6;
  --gray-200:    #e1e6ee;
  --gray-300:    #c8d0dc;
  --gray-500:    #6b7585;
  --gray-700:    #3a4252;
  --gray-900:    #1a1f2b;
  --green:       #16a34a;
  --green-light: #22c55e;
  --red:         #dc2626;
  --shadow-sm:   0 1px 2px rgba(15,23,42,.06), 0 1px 1px rgba(15,23,42,.04);
  --shadow:      0 4px 14px rgba(0,62,171,.08);
  --shadow-lg:   0 14px 40px rgba(0,62,171,.14);
  --radius:      14px;
  --radius-sm:   8px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--gray-900);
  background: #fff;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ================= HEADER ================= */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo img { height: 42px; width: auto; }
.logo-text {
  font-weight: 800;
  color: var(--blue);
  font-size: 20px;
  letter-spacing: -0.01em;
}
.main-nav { display: flex; align-items: center; }
.nav-list {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  gap: 4px;
}
.nav-list a {
  display: inline-block;
  padding: 10px 14px;
  color: var(--gray-700);
  font-weight: 500;
  font-size: 14.5px;
  border-radius: 8px;
  transition: background .15s, color .15s;
}
.nav-list a:hover { color: var(--blue); background: var(--blue-50); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  padding: 0;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  align-items: center;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--blue);
  border-radius: 2px;
  transition: transform .2s;
}

/* ================= HERO ================= */
.main-content { padding: 40px 24px 80px; }
.page-hero {
  text-align: center;
  margin-bottom: 48px;
}
.page-hero h1 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: var(--blue);
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}
.page-hero .lead {
  color: var(--gray-500);
  font-size: 17px;
  margin: 0;
}

/* ================= SECTION ================= */
.webinar-section { margin-bottom: 56px; }
.section-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--gray-100);
}
.section-head h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--gray-900);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}
.count-pill {
  background: var(--blue-50);
  color: var(--blue);
  font-weight: 600;
  font-size: 13px;
  padding: 4px 12px;
  border-radius: 999px;
}

/* Yanıp sönen yeşil nokta */
.pulse-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--green-light);
  box-shadow: 0 0 0 0 rgba(34,197,94,.7);
  animation: pulse 1.6s infinite;
  flex-shrink: 0;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(34,197,94,.6); transform: scale(1); }
  70%  { box-shadow: 0 0 0 12px rgba(34,197,94,0); transform: scale(1.05); }
  100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); transform: scale(1); }
}

.past-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gray-300);
  flex-shrink: 0;
}

/* ================= CARDS ================= */
.webinar-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.webinar-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.webinar-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-100);
}

.webinar-card.is-active {
  grid-template-columns: 520px 1fr;
  border-color: var(--blue-100);
  background: linear-gradient(135deg, #fff 0%, var(--blue-50) 100%);
  box-shadow: var(--shadow);
}
.webinar-card.is-past { background: #fff; }
.webinar-card.is-past .webinar-image img,
.webinar-card.is-past .image-placeholder {
  filter: grayscale(.15);
}

.webinar-image {
  position: relative;
  background: var(--blue-50);
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

/* Aktif kartlarda görsel daha geniş ve oran biraz daha sinema */
.webinar-card.is-active .webinar-image {
  aspect-ratio: 16 / 10;
}
.webinar-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.image-placeholder {
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-light);
  background: linear-gradient(135deg, var(--blue-50), #fff);
}

.status-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .04em;
  padding: 6px 10px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  backdrop-filter: blur(6px);
}
.badge-active {
  background: rgba(255,255,255,.95);
  color: var(--green);
  border: 1px solid rgba(22,163,74,.25);
}
.badge-active .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--green-light);
  animation: pulse 1.6s infinite;
}
.badge-past {
  background: rgba(220,38,38,.95);
  color: #fff;
}

.webinar-body {
  padding: 24px 26px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.webinar-date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--blue);
  font-weight: 600;
  font-size: 13.5px;
  margin-bottom: 8px;
}
.webinar-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--gray-900);
  margin: 0 0 6px;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.webinar-subtitle {
  font-size: 14px;
  color: var(--gray-500);
  margin: 0 0 10px;
  font-weight: 500;
}
.webinar-desc {
  font-size: 14.5px;
  color: var(--gray-700);
  margin: 0 0 16px;
}

/* ================= BUTTONS ================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-weight: 600;
  font-size: 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
  align-self: flex-start;
  white-space: nowrap;
}
.btn-primary {
  background: var(--blue);
  color: #fff;
}
.btn-primary:hover {
  background: var(--blue-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(0,62,171,.3);
}
.btn-outline {
  background: #fff;
  color: var(--blue);
  border-color: var(--blue);
}
.btn-outline:hover {
  background: var(--blue);
  color: #fff;
}
.btn-ghost {
  background: var(--gray-100);
  color: var(--gray-700);
}
.btn-ghost:hover {
  background: var(--gray-200);
}
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ================= EMPTY ================= */
.empty-state {
  background: var(--gray-50);
  border: 1px dashed var(--gray-200);
  border-radius: var(--radius);
  padding: 48px 24px;
  text-align: center;
  color: var(--gray-500);
}

/* ================= FOOTER ================= */
.site-footer {
  border-top: 1px solid var(--gray-200);
  padding: 28px 0;
  margin-top: 60px;
  background: var(--gray-50);
  color: var(--gray-500);
  font-size: 14px;
  text-align: center;
}

/* ================= RESPONSIVE ================= */
@media (max-width: 1000px) {
  .webinar-card.is-active {
    grid-template-columns: 360px 1fr;
  }
}

@media (max-width: 820px) {
  .webinar-card,
  .webinar-card.is-active { grid-template-columns: 1fr; }
  .webinar-image,
  .webinar-card.is-active .webinar-image { aspect-ratio: 16 / 9; }
}

@media (max-width: 700px) {
  .nav-toggle { display: flex; }
  .nav-list {
    display: none;
    position: absolute;
    top: 72px;
    left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    padding: 12px;
    gap: 4px;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow);
  }
  .nav-list.open { display: flex; }
  .nav-list a { padding: 12px 16px; }
  .header-inner { position: relative; }
  .main-content { padding: 24px 0 60px; }
  .container { padding: 0 16px; }
}