/* ================================================================
 SECTIONS2: WHY US + COURSES
 ================================================================ */

.section-badge__icon.orange-bg { background: var(--orange-50); }
.section-badge__icon.teal-bg { background: var(--teal-50); }
.section-title .orange { color: var(--orange); }
.section-title .teal { color: var(--teal); }

.why-us {
  position: relative;
  padding: 120px 0 130px;
  background: var(--white);
  overflow: hidden;
}

.why-us__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.why-us__bg-line1,
.why-us__bg-line2 {
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gray-200) 20%, var(--gray-200) 80%, transparent);
  opacity: 0.5;
}

.why-us__bg-line1 { top: 180px; }
.why-us__bg-line2 { bottom: 200px; }

.why-us__bg-glow1,
.why-us__bg-glow2 {
  position: absolute;
  width: 500px;
  height: 500px;
  filter: blur(60px);
}

.why-us__bg-glow1 {
  top: -100px;
  left: -150px;
  background: transparent;
}

.why-us__bg-glow2 {
  bottom: -100px;
  right: -150px;
  background: transparent;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
  z-index: 2;
}

.feature-card {
  position: relative;
  padding: 36px 28px 32px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 20px;
  transition: all 0.45s var(--ease);
  cursor: default;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--card-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease);
  border-radius: 20px 20px 0 0;
}

.feature-card:hover::before { transform: scaleX(1); }

.feature-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-6px);
}

.feature-card::after {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 140px;
  height: 140px;
  background: var(--card-glow);
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.45s var(--ease);
  pointer-events: none;
  filter: blur(30px);
}

.feature-card:hover::after { opacity: 1; }

.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  position: relative;
  transition: all 0.4s var(--ease-bounce);
}

.feature-card:hover .feature-icon { transform: scale(1.08) rotate(-3deg); }

.feature-icon svg {
  width: 28px;
  height: 28px;
  stroke-width: 1.8;
  transition: transform 0.4s var(--ease);
}

.feature-card:hover .feature-icon svg { transform: scale(1.1); }

.feature-number {
  position: absolute;
  top: 20px;
  right: 20px;
  font-family: 'Outfit', sans-serif;
  font-size: 48px;
  font-weight: 900;
  color: var(--gray-100);
  line-height: 1;
  transition: color 0.45s var(--ease);
  user-select: none;
}

.feature-card:hover .feature-number { color: var(--card-number-hover); }

.feature-title {
  font-family: 'Outfit', sans-serif;
  font-size: 19px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
  position: relative;
}

.feature-desc {
  font-size: 14.5px;
  color: var(--gray-400);
  line-height: 1.7;
  position: relative;
}

.feature-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 16px;
  padding: 5px 12px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  background: var(--card-tag-bg);
  color: var(--card-accent);
  position: relative;
  transition: all 0.3s var(--ease);
}

.feature-card:hover .feature-tag {
  background: var(--card-accent);
  color: white;
}

.feature-tag svg { width: 12px; height: 12px; }

.feature-card[data-color="teal"] { --card-accent: var(--teal); --card-glow: rgba(21, 227, 153, 0.06); --card-tag-bg: var(--teal-50); --card-number-hover: var(--teal-100); }
.feature-card[data-color="teal"] .feature-icon { background: var(--teal-50); color: var(--teal); }
.feature-card[data-color="orange"] { --card-accent: var(--orange); --card-glow: rgba(0,84,219,0.05); --card-tag-bg: var(--orange-50); --card-number-hover: var(--orange-100); }
.feature-card[data-color="orange"] .feature-icon { background: var(--orange-50); color: var(--orange); }
.feature-card[data-color="purple"] { --card-accent: #7C3AED; --card-glow: rgba(124,58,237,0.05); --card-tag-bg: #F3F0FF; --card-number-hover: #E5DEFF; }
.feature-card[data-color="purple"] .feature-icon { background: #F3F0FF; color: #7C3AED; }
.feature-card[data-color="green"] { --card-accent: #059669; --card-glow: rgba(5,150,105,0.05); --card-tag-bg: #ECFDF5; --card-number-hover: #D1FAE5; }
.feature-card[data-color="green"] .feature-icon { background: #ECFDF5; color: #059669; }
.feature-card[data-color="amber"] { --card-accent: #059669; --card-glow: rgba(5,150,105,0.05); --card-tag-bg: #ECFDF5; --card-number-hover: #D1FAE5; }
.feature-card[data-color="amber"] .feature-icon { background: #ECFDF5; color: #059669; }
.feature-card[data-color="rose"] { --card-accent: #E11D48; --card-glow: rgba(225,29,72,0.05); --card-tag-bg: #FFF1F2; --card-number-hover: #FFE4E6; }
.feature-card[data-color="rose"] .feature-icon { background: #FFF1F2; color: #E11D48; }

.why-us-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 56px;
  position: relative;
  z-index: 2;
}

.why-stat-card {
  text-align: center;
  padding: 28px 16px;
  background: var(--gray-50);
  border-radius: var(--radius);
  border: 1px solid var(--gray-100);
  transition: all 0.35s var(--ease);
}

.why-stat-card:hover {
  background: var(--white);
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}

.why-stat-number {
  font-family: 'Outfit', sans-serif;
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 4px;
}

.why-stat-card:nth-child(1) .why-stat-number { color: var(--orange); }
.why-stat-card:nth-child(2) .why-stat-number { color: var(--teal); }
.why-stat-card:nth-child(3) .why-stat-number { color: #7C3AED; }
.why-stat-card:nth-child(4) .why-stat-number { color: #059669; }

.why-stat-label {
  font-size: 13.5px;
  color: var(--gray-400);
  font-weight: 500;
}

.courses {
  position: relative;
  padding: 120px 0 130px;
  background: var(--gray-50);
  overflow: hidden;
}

.courses__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.courses__bg-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(21, 227, 153, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 227, 153, 0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 65% 55% at 50% 50%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 65% 55% at 50% 50%, black, transparent);
}

.course-filters {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}

.course-filter-btn {
  padding: 10px 22px;
  border: 1.5px solid var(--gray-200);
  border-radius: 40px;
  background: var(--white);
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-500);
  cursor: pointer;
  transition: all 0.3s var(--ease);
  white-space: nowrap;
}

.course-filter-btn:hover {
  border-color: var(--teal);
  color: var(--teal);
}

.course-filter-btn.active {
  background: var(--teal);
  border-color: var(--teal);
  color: white;
  box-shadow: none;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
  z-index: 2;
}

.course-card {
  background: var(--white);
  border-radius: 20px;
  border: 1px solid var(--gray-200);
  overflow: hidden;
  transition: all 0.45s var(--ease);
  display: flex;
  flex-direction: column;
}

.course-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-6px);
}

.course-card__header {
  position: relative;
  padding: 28px 24px 24px;
  background: var(--course-bg);
  overflow: hidden;
}

.course-card__media {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 156px;
  margin: -10px 0 20px;
  border-radius: 16px;
  overflow: hidden;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.18);
  box-shadow: 0 18px 40px rgba(0,0,0,0.12);
}

.course-card__media img,
.course-card__media video,
.course-card__media iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  object-fit: cover;
}

.course-card__media video {
  background: rgba(0,0,0,0.2);
}

@media (max-width: 768px) {
  .course-card__media {
    height: 132px;
    margin-bottom: 16px;
  }
}

.course-card__header::before {
  content: '';
  position: absolute;
  top: -30px;
  right: -30px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
}

.course-card__header::after {
  content: '';
  position: absolute;
  bottom: -20px;
  left: -20px;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
}

.course-card__icon-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.course-card__icon {
  width: 52px;
  height: 52px;
  background: rgba(255,255,255,0.18);
  backdrop-filter: blur(8px);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  transition: transform 0.4s var(--ease-bounce);
}

.course-card__icon i { font-size: 22px; }
.course-card:hover .course-card__icon { transform: scale(1.1) rotate(-5deg); }

.course-card__level {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px 10px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
  border-radius: 8px;
  font-size: 11px;
  font-weight: 700;
  color: rgba(255,255,255,0.9);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.level-dots { display: flex; gap: 3px; }
.level-dot { width: 6px; height: 6px; border-radius: 50%; background: rgba(255,255,255,0.35); }
.level-dot.filled { background: rgba(255,255,255,0.95); }

.course-card__header-title {
  font-family: 'Outfit', sans-serif;
  font-size: 22px;
  font-weight: 800;
  color: white;
  letter-spacing: -0.02em;
  position: relative;
  z-index: 1;
  line-height: 1.2;
}

.course-card__header-sub {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  font-weight: 500;
  margin-top: 4px;
  position: relative;
  z-index: 1;
}

.course-card__body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.course-card__desc {
  font-size: 14.5px;
  color: var(--gray-500);
  line-height: 1.7;
  margin-bottom: 20px;
}

.course-topics { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 22px; }
.course-topic {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  background: var(--gray-50);
  color: var(--gray-500);
  border: 1px solid var(--gray-100);
  transition: all 0.3s var(--ease);
}

.course-card:hover .course-topic {
  background: var(--course-topic-hover-bg);
  color: var(--course-topic-hover-color);
  border-color: transparent;
}

.course-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: 18px;
  border-top: 1px solid var(--gray-100);
  margin-top: auto;
  margin-bottom: 18px;
}

.course-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--gray-400);
  font-weight: 500;
}

.course-meta-item svg { width: 15px; height: 15px; opacity: 0.6; }

.course-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 13px 20px;
  border-radius: 12px;
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 700;
  border: 1.5px solid var(--gray-200);
  background: transparent;
  color: var(--gray-600);
  cursor: pointer;
  transition: all 0.35s var(--ease);
  text-decoration: none;
  margin-top: auto;
}

.course-cta:hover { text-decoration: none; }

.course-cta svg { width: 16px; height: 16px; transition: transform 0.3s var(--ease); }

.course-card:hover .course-cta {
  background: var(--course-cta-bg);
  border-color: var(--course-cta-bg);
  color: white;
  box-shadow: none;
}

.course-card:hover .course-cta svg { transform: translateX(3px); }

.course-card[data-course="ilkokul"] { --course-bg: linear-gradient(135deg, #0054db 0%, #0042ad 100%); --course-topic-hover-bg: var(--orange-50); --course-topic-hover-color: var(--orange-dark); --course-cta-bg: var(--orange); --course-cta-shadow: rgba(0,84,219,0.25); }
.course-card[data-course="ortaokul"] { --course-bg: linear-gradient(135deg, #15e399 0%, #0fb87c 100%); --course-topic-hover-bg: var(--teal-50); --course-topic-hover-color: var(--teal-dark); --course-cta-bg: var(--teal); --course-cta-shadow: rgba(21, 227, 153, 0.25); }
.course-card[data-course="lgs"] { --course-bg: linear-gradient(135deg, #0054db 0%, #0042ad 100%); --course-topic-hover-bg: var(--orange-50); --course-topic-hover-color: var(--orange-dark); --course-cta-bg: var(--orange); --course-cta-shadow: rgba(0,84,219,0.25); }
.course-card[data-course="tyt"] { --course-bg: linear-gradient(135deg, #15e399 0%, #0fb87c 100%); --course-topic-hover-bg: var(--teal-50); --course-topic-hover-color: var(--teal-dark); --course-cta-bg: var(--teal); --course-cta-shadow: rgba(21, 227, 153, 0.25); }
.course-card[data-course="tyt-ayt"] { --course-bg: linear-gradient(135deg, #0054db 0%, #0042ad 100%); --course-topic-hover-bg: var(--orange-50); --course-topic-hover-color: var(--orange-dark); --course-cta-bg: var(--orange); --course-cta-shadow: rgba(0,84,219,0.25); }
.course-card[data-course="ayt"] { --course-bg: linear-gradient(135deg, #7C3AED 0%, #5B21B6 100%); --course-topic-hover-bg: #F3F0FF; --course-topic-hover-color: #5B21B6; --course-cta-bg: #7C3AED; --course-cta-shadow: rgba(124,58,237,0.25); }
.course-card[data-course="geometri"] { --course-bg: linear-gradient(135deg, #059669 0%, #047857 100%); --course-topic-hover-bg: #ECFDF5; --course-topic-hover-color: #047857; --course-cta-bg: #059669; --course-cta-shadow: rgba(5,150,105,0.25); }
.course-card[data-course="olasilik"] { --course-bg: linear-gradient(135deg, #059669 0%, #047857 100%); --course-topic-hover-bg: #ECFDF5; --course-topic-hover-color: #047857; --course-cta-bg: #059669; --course-cta-shadow: rgba(5,150,105,0.25); }
.course-card[data-course="cebir"] { --course-bg: linear-gradient(135deg, #E11D48 0%, #BE123C 100%); --course-topic-hover-bg: #FFF1F2; --course-topic-hover-color: #BE123C; --course-cta-bg: #E11D48; --course-cta-shadow: rgba(225,29,72,0.25); }

.course-card__popular {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 4px 10px;
  background: rgba(255,255,255,0.22);
  backdrop-filter: blur(8px);
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  color: white;
  letter-spacing: 0.04em;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 4px;
}

.course-card__popular i { font-size: 11px; }

.courses-view-all {
  text-align: center;
  margin-top: 48px;
  position: relative;
  z-index: 2;
}

.courses-view-all__btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 32px;
  background: var(--white);
  border: 1.5px solid var(--gray-200);
  border-radius: 14px;
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--gray-700);
  cursor: pointer;
  transition: all 0.35s var(--ease);
  box-shadow: 0 1px 4px rgba(0,0,0,0.03);
}

.courses-view-all__btn:hover {
  border-color: var(--teal);
  color: var(--teal);
  background: var(--teal-50);
  box-shadow: none;
  transform: translateY(-2px);
}

.courses-view-all__btn svg { width: 18px; height: 18px; transition: transform 0.3s var(--ease); }
.courses-view-all__btn:hover svg { transform: translateX(4px); }

@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .courses-grid { grid-template-columns: repeat(2, 1fr); }
  .why-us-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .why-us { padding: 80px 0 90px; }
  .courses { padding: 80px 0 90px; }
  .features-grid { grid-template-columns: 1fr; max-width: 440px; margin: 0 auto; }
  .courses-grid { grid-template-columns: 1fr; max-width: 440px; margin: 0 auto; }
  .why-us-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; max-width: 440px; margin: 40px auto 0; }
  .course-filters { gap: 6px; }
  .course-filter-btn { padding: 8px 16px; font-size: 13px; }
  .feature-number { font-size: 40px; }
}

@media (max-width: 480px) {
  .why-us { padding: 64px 0 72px; }
  .courses { padding: 64px 0 72px; }
  .feature-card { padding: 28px 22px 26px; }
  .feature-icon { width: 52px; height: 52px; border-radius: 14px; }
  .feature-icon svg { width: 24px; height: 24px; }
  .why-us-stats { grid-template-columns: 1fr 1fr; }
  .why-stat-number { font-size: 26px; }
}