/* =========================================================================
   DigiFlux — Etkinlikler sayfasına özel stiller
   ========================================================================= */

/* ============================================================
   Category chip varyantları
   ============================================================ */
.chip-cat { letter-spacing: 0.05em; }

.chip-cat-toplanti     { background: var(--df-think-tint);    color: var(--df-think); }
.chip-cat-atolye       { background: var(--df-do-tint);       color: var(--df-do); }
.chip-cat-ziyaret      { background: var(--df-dialogue-tint); color: var(--df-dialogue); }
.chip-cat-konferans    { background: var(--df-reading-tint);  color: var(--df-reading); }
.chip-cat-diseminasyon { background: rgba(255, 169, 77, 0.18); color: #B96100; }

/* ============================================================
   [2] EVENTS SECTION (filter + featured + grid)
   ============================================================ */
.events-section {
  background-color: var(--df-white);
  padding-bottom: 4rem;
}

.events-head {
  text-align: center;
  max-width: 760px;
  margin: 3rem auto 0;
}

.events-head .section-tagline { padding-left: 0; }
.events-head .section-tagline::before { display: none; }

.events-head p {
  color: var(--df-gray-500);
  font-size: 1rem;
  line-height: 1.65;
}

/* ----- Filter bar (sticky) ----- */
.filter-bar {
  position: sticky;
  top: var(--header-h);
  z-index: 50;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-top: 1px solid var(--df-gray-200);
  border-bottom: 1px solid var(--df-gray-200);
  margin-top: 2rem;
  margin-bottom: 2.5rem;
  padding-block: 0.875rem;
  box-shadow: 0 2px 8px rgba(15, 27, 61, 0.04);
}

.filter-bar-inner {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: stretch;
}

.filter-chips {
  list-style: none;
  display: flex;
  gap: 0.5rem;
  flex-wrap: nowrap;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding-bottom: 0.25rem;
  margin: 0 calc(-1 * var(--container-pad));
  padding-inline: var(--container-pad);
}

.filter-chips::-webkit-scrollbar { display: none; }

.filter-chip {
  flex-shrink: 0;
  scroll-snap-align: start;
  padding: 0.5rem 1rem;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--df-navy);
  background-color: var(--df-white);
  border: 1px solid var(--df-gray-200);
  border-radius: var(--radius-pill);
  cursor: pointer;
  white-space: nowrap;
  transition:
    background-color var(--t-fast),
    color var(--t-fast),
    border-color var(--t-fast),
    transform var(--t-fast);
  min-height: 36px;
}

.filter-chip:hover {
  border-color: var(--df-blue-deep);
  color: var(--df-blue-deep);
}

.filter-chip.is-active {
  background-color: var(--df-blue-deep);
  color: var(--df-white);
  border-color: var(--df-blue-deep);
  box-shadow: 0 4px 12px rgba(27, 77, 168, 0.30);
}

.filter-chip:focus-visible {
  outline: 2px solid var(--df-blue-bright);
  outline-offset: 2px;
}

.filter-year {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.filter-year select {
  appearance: none;
  -webkit-appearance: none;
  padding: 0.5rem 2rem 0.5rem 0.875rem;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--df-navy);
  background-color: var(--df-white);
  border: 1px solid var(--df-gray-200);
  border-radius: var(--radius-pill);
  cursor: pointer;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235A6280' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><path d='M6 9l6 6 6-6'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  min-height: 36px;
  transition: border-color var(--t-fast);
}

.filter-year select:hover,
.filter-year select:focus {
  border-color: var(--df-blue-deep);
  outline: none;
}

@media (min-width: 768px) {
  .filter-bar-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
  }
  .filter-chips {
    flex-wrap: wrap;
    overflow-x: visible;
    margin: 0;
    padding-inline: 0;
    padding-bottom: 0;
  }
}

/* ============================================================
   THUMBNAIL gradients (kategori bazlı)
   ============================================================ */
.event-thumb,
.featured-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.thumb-icon {
  color: rgba(255, 255, 255, 0.92);
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.25));
  transition: transform var(--t-med);
}

.event-card:hover .thumb-icon,
.featured-event:hover .thumb-icon {
  transform: scale(1.08);
}

.thumb-blue   { background: linear-gradient(135deg, var(--df-blue-deep) 0%, var(--df-blue-bright) 100%); }
.thumb-orange { background: linear-gradient(135deg, #C75409 0%, var(--df-orange) 100%); }
.thumb-green  { background: linear-gradient(135deg, #4F8C17 0%, var(--df-dialogue) 100%); }
.thumb-red    { background: linear-gradient(135deg, #A8281A 0%, var(--df-reading) 100%); }
.thumb-amber  { background: linear-gradient(135deg, var(--df-orange) 0%, var(--df-amber) 100%); }

/* Dot pattern overlay */
.event-thumb::after,
.featured-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.5) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.15;
  pointer-events: none;
}

.category-overlay {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 2;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
}

/* ============================================================
   [3] FEATURED EVENT
   ============================================================ */
.featured-event {
  display: grid;
  grid-template-columns: 1fr;
  background-color: var(--df-white);
  border: 1px solid var(--df-gray-200);
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: 3rem;
  transition: transform var(--t-med), box-shadow var(--t-med);
}

.featured-event:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.featured-thumb { aspect-ratio: 16 / 9; }

.featured-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  background: linear-gradient(135deg, var(--df-amber) 0%, var(--df-orange) 100%);
  color: var(--df-white);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 12px rgba(244, 123, 32, 0.45);
}

.featured-body {
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.featured-body .event-title {
  font-size: clamp(1.25rem, 2.4vw, 1.625rem);
  font-weight: 800;
  color: var(--df-navy);
  margin: 0.25rem 0;
  letter-spacing: -0.015em;
  line-height: 1.25;
}

.featured-body .event-summary {
  font-size: 1rem;
  color: var(--df-gray-700);
  line-height: 1.65;
  margin: 0;
}

@media (min-width: 900px) {
  .featured-event {
    grid-template-columns: 1.1fr 1fr;
    align-items: stretch;
  }
  .featured-thumb { aspect-ratio: auto; min-height: 320px; }
  .featured-body  { padding: 2.5rem; justify-content: center; }
}

/* ============================================================
   Event card (grid)
   ============================================================ */
.events-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.event-card {
  background-color: var(--df-white);
  border: 1px solid var(--df-gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition:
    transform var(--t-med),
    box-shadow var(--t-med),
    border-color var(--t-med),
    opacity 250ms var(--ease-out);
}

.event-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(46, 134, 255, 0.30);
}

.event-body {
  padding: 1.25rem 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex-grow: 1;
}

.event-meta {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  font-size: 0.75rem;
  color: var(--df-gray-500);
  margin: 0;
}

.event-meta li {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.event-meta svg { color: var(--df-blue-bright); }

.event-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  color: var(--df-navy);
  margin: 0.25rem 0 0;
  letter-spacing: -0.01em;
  line-height: 1.35;
  /* 2-line clamp */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.event-summary {
  font-size: 0.875rem;
  color: var(--df-gray-500);
  line-height: 1.6;
  margin: 0;
  flex-grow: 1;
  /* 3-line clamp */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.event-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  align-self: flex-start;
  margin-top: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--df-blue-bright);
  transition: color var(--t-fast), gap var(--t-fast);
}

.event-link:hover,
.event-link:focus-visible {
  color: var(--df-blue-deep);
  gap: 0.55rem;
}

@media (min-width: 600px) {
  .events-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .events-grid { grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
}

/* ----- Hidden by filter ----- */
.event-card.is-hidden { display: none; }

/* ----- Empty state ----- */
.events-empty {
  display: none;
  text-align: center;
  padding: 3rem 1.5rem;
  background-color: var(--df-gray-100);
  border: 1px dashed var(--df-gray-200);
  border-radius: var(--radius-lg);
  margin-top: 1rem;
  color: var(--df-gray-500);
  font-size: 0.9375rem;
  font-style: italic;
}

.events-empty.is-visible { display: block; }

/* ============================================================
   [5] UPCOMING
   ============================================================ */
.upcoming {
  background: linear-gradient(180deg, var(--df-gray-100) 0%, #EEF2FB 100%);
  position: relative;
}
.upcoming::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(rgba(27, 77, 168, 0.05) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}
.upcoming > .container { position: relative; }

.upcoming-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 820px;
  margin-inline: auto;
  padding: 0;
}

.upcoming-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1.25rem;
  align-items: center;
  padding: 1.125rem 1.25rem;
  background-color: var(--df-white);
  border: 1px solid var(--df-gray-200);
  border-radius: var(--radius-lg);
  transition: transform var(--t-med), box-shadow var(--t-med), border-color var(--t-med);
}

.upcoming-card:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(46, 134, 255, 0.25);
}

.date-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 72px;
  padding: 0.625rem 0.5rem;
  background-color: var(--df-white);
  border: 1px solid var(--df-gray-200);
  border-radius: var(--radius-md);
  text-align: center;
  flex-shrink: 0;
  font-family: var(--font-display);
}

.date-box .day {
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1;
  color: var(--df-navy);
  letter-spacing: -0.02em;
}

.date-box .month {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.2rem;
  color: var(--df-orange);
}

.date-box .year {
  font-size: 0.625rem;
  color: var(--df-gray-500);
  font-weight: 600;
  margin-top: 0.125rem;
  letter-spacing: 0.04em;
}

/* Date box colored borders by category */
.date-box-ziyaret      { border-top: 3px solid var(--df-dialogue); }
.date-box-ziyaret .month { color: var(--df-dialogue); }

.date-box-diseminasyon { border-top: 3px solid var(--df-amber); }
.date-box-diseminasyon .month { color: #B96100; }

.date-box-konferans    { border-top: 3px solid var(--df-reading); }
.date-box-konferans .month { color: var(--df-reading); }

.date-box-toplanti     { border-top: 3px solid var(--df-think); }
.date-box-toplanti .month { color: var(--df-think); }

.date-box-atolye       { border-top: 3px solid var(--df-do); }
.date-box-atolye .month { color: var(--df-do); }

.upcoming-body {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 0;
}

.upcoming-body .chip {
  align-self: flex-start;
}

.upcoming-body h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.0625rem;
  color: var(--df-navy);
  margin: 0;
  letter-spacing: -0.01em;
}

.upcoming-loc {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  font-size: 0.8125rem;
  color: var(--df-gray-500);
}

.upcoming-loc svg { color: var(--df-blue-bright); flex-shrink: 0; }

/* Multi-day range support */
.date-box .day-range {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--df-gray-500);
  letter-spacing: -0.02em;
  margin-top: 0.1rem;
}

.upcoming-date-full {
  margin: 0.1rem 0 0;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--df-gray-500);
  letter-spacing: 0.01em;
}

.upcoming-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  color: var(--df-blue-bright);
  background-color: var(--df-gray-100);
  transition: background-color var(--t-fast), color var(--t-fast), transform var(--t-fast);
  flex-shrink: 0;
}

.upcoming-link:hover,
.upcoming-link:focus-visible {
  background-color: var(--df-blue-deep);
  color: var(--df-white);
  transform: translateX(3px);
}

.upcoming-cta {
  text-align: center;
  margin-top: 2rem;
}

/* Compact stack on very small screens */
@media (max-width: 480px) {
  .upcoming-card {
    grid-template-columns: auto 1fr;
    grid-template-areas: "date body" "link link";
    gap: 0.875rem;
  }
  .upcoming-card .date-box     { grid-area: date; }
  .upcoming-card .upcoming-body { grid-area: body; }
  .upcoming-card .upcoming-link {
    grid-area: link;
    width: 100%;
    border-radius: var(--radius-md);
    height: 38px;
    margin-top: 0.25rem;
  }
}

/* ============================================================
   [6] IMPACT STATS (dark navy)
   ============================================================ */
.impact {
  position: relative;
  overflow: hidden;
  color: var(--df-white);
  padding-block: 4.5rem;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(46, 134, 255, 0.18) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 60%, rgba(244, 123, 32, 0.12) 0%, transparent 50%),
    linear-gradient(135deg, var(--df-navy) 0%, #14246B 100%);
}

.impact::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.85) 1px, transparent 1px);
  background-size: 36px 36px;
  opacity: 0.04;
  pointer-events: none;
}

.impact > .container { position: relative; z-index: 1; }

.impact .section-head h2 { color: var(--df-white); }

.impact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem 1rem;
  margin-bottom: 2rem;
}

.impact-stat {
  text-align: center;
  padding: 0.75rem 0.5rem;
  position: relative;
}

.impact-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: rgba(255, 169, 77, 0.14);
  color: var(--df-amber);
  margin-bottom: 0.75rem;
}

.impact-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.1;
  background: linear-gradient(135deg, var(--df-amber) 0%, var(--df-orange) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  margin-bottom: 0.4rem;
  letter-spacing: -0.02em;
}

.impact-num-text {
  font-size: clamp(1.125rem, 2.4vw, 1.5rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.impact-label {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
}

.impact-note {
  text-align: center;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.62);
  font-style: italic;
  margin: 0 auto;
  max-width: 600px;
}

@media (min-width: 768px) {
  .impact-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
  }
  .impact-stat:not(:last-child) {
    border-right: 1px solid rgba(255, 255, 255, 0.10);
  }
  .impact-stat { padding: 0.5rem 1rem; }
}

/* ============================================================
   Newsletter form (CTA içinde)
   ============================================================ */
.newsletter-form {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  max-width: 560px;
  margin: 1rem auto 0;
}

.newsletter-form input[type="email"] {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--df-navy);
  background-color: var(--df-white);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-md);
  min-height: 48px;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}

.newsletter-form input[type="email"]::placeholder {
  color: var(--df-gray-500);
}

.newsletter-form input[type="email"]:focus {
  outline: none;
  border-color: var(--df-white);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.25);
}

.newsletter-form button {
  min-height: 48px;
}

@media (min-width: 600px) {
  .newsletter-form {
    flex-direction: row;
    gap: 0.5rem;
  }
  .newsletter-form input[type="email"] { flex: 1; }
}