/* ============================================================
   COMPONENTS.CSS — Kobi Proje Danışmanlık
   ============================================================
   Yeniden kullanılabilir bileşen stilleri: butonlar, kartlar,
   form alanları, hata mesajları, iç sayfa hero, CTA bölümü,
   WhatsApp butonu, scroll-to-top, mobil alt bar, skip-link.
   
   BEM isimlendirme kuralı tutarlı şekilde uygulanır.
   Her bileşen kendi başına çalışabilir (self-contained).
   ============================================================ */

/* ============================================================
   1. BUTONLAR
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.8rem 1.8rem;
  font-family: var(--font-heading);
  font-size: var(--font-size-base);
  font-weight: 600;
  line-height: 1.4;
  text-align: center;
  white-space: nowrap;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition:
    background-color var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
  -webkit-user-select: none;
  user-select: none;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

/* Birincil buton — dolu arka plan */
.btn--primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #ffffff;
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(26, 42, 94, 0.25);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  border-color: var(--color-primary-dark);
  box-shadow: 0 6px 20px rgba(26, 42, 94, 0.35);
  color: #ffffff;
}

.btn--primary:active {
  box-shadow: 0 2px 8px rgba(26, 42, 94, 0.2);
}

/* İkincil buton — çerçeveli (outline) */
.btn--secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--secondary:hover {
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(26, 42, 94, 0.2);
}

/* Beyaz buton — koyu arka planlar üzerinde */
.btn--white {
  background: #ffffff;
  color: var(--color-primary);
  border-color: #ffffff;
}

.btn--white:hover {
  background: var(--color-bg-secondary);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* Ghost beyaz buton — hero üzerinde şeffaf */
.btn--ghost-white {
  background: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.4);
}

.btn--ghost-white:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #ffffff;
  color: #ffffff;
}

/* Outline buton — koyu arka planlarda beyaz kenarlıklı */
.btn--outline {
  background: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.5);
}

.btn--outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #ffffff;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.15);
}

.btn--ghost-white:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.7);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Boyut varyantları */
.btn--sm {
  padding: 0.5rem 1.2rem;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn--lg {
  padding: 1rem 2.4rem;
  font-size: var(--font-size-lg);
  border-radius: var(--radius-lg);
}

/* CTA buton — hafif parıltı animasyonu */
.btn--cta {
  position: relative;
}

.btn--cta::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.15) 50%,
    transparent 100%
  );
  transition: left 0.6s ease;
}

.btn--cta:hover::after {
  left: 100%;
}

/* Buton ikonu */
.btn__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.btn--lg .btn__icon {
  width: 22px;
  height: 22px;
}

/* ============================================================
   2. KART BİLEŞENİ
   ============================================================ */
.card {
  position: relative;
  background-color: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  border-top: 3px solid transparent;
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-top-color: transparent;
}

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

.card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(26, 42, 94, 0.08) 0%, rgba(26, 42, 94, 0.04) 100%);
  margin-bottom: var(--space-lg);
  color: var(--color-primary);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.card__icon svg {
  width: 28px;
  height: 28px;
}

.card:hover .card__icon {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #ffffff;
}

.card__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.card__text {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  transition: color var(--transition-fast), gap var(--transition-fast);
}

.card__link:hover {
  color: var(--color-secondary);
  gap: var(--space-sm);
}

.card__link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.card__link:hover svg {
  transform: translateX(4px);
}

/* ============================================================
   3. FORM ALANLARI (Floating Label)
   ============================================================ */
.form-group {
  position: relative;
  margin-bottom: var(--space-lg);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 1rem 1rem 0.6rem;
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 42, 94, 0.1);
}

.form-input.is-error,
.form-select.is-error,
.form-textarea.is-error {
  border-color: var(--color-danger);
  box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

/* Floating label */
.form-label {
  position: absolute;
  top: 50%;
  left: 1rem;
  transform: translateY(-50%);
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  pointer-events: none;
  transition:
    top var(--transition-fast),
    font-size var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast);
  background-color: transparent;
  padding: 0 0.25rem;
}

.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label,
.form-select:focus ~ .form-label,
.form-select:not([value=""]) ~ .form-label {
  top: 0;
  transform: translateY(-50%);
  font-size: var(--font-size-xs);
  color: var(--color-primary);
  background-color: var(--color-bg-primary);
}

/* Textarea label — üst hizalama */
.form-group--textarea .form-label {
  top: 1rem;
  transform: none;
}

.form-textarea:focus ~ .form-label,
.form-textarea:not(:placeholder-shown) ~ .form-label {
  top: -0.5rem;
  transform: none;
  font-size: var(--font-size-xs);
  color: var(--color-primary);
  background-color: var(--color-bg-primary);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
  padding-top: 1.2rem;
}

.form-select {
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23636e72' d='M6 8.825L.35 3.175l.7-.7L6 7.425l4.95-4.95.7.7z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

/* ============================================================
   4. HATA / ALERT MESAJLARI
   ============================================================ */
.form-error {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-danger);
  margin-top: var(--space-xs);
  padding-left: 0.25rem;
}

.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.alert svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.alert--success {
  background-color: rgba(40, 167, 69, 0.08);
  color: var(--color-success);
  border: 1px solid rgba(40, 167, 69, 0.2);
}

.alert--danger {
  background-color: rgba(220, 53, 69, 0.08);
  color: var(--color-danger);
  border: 1px solid rgba(220, 53, 69, 0.2);
}

.alert--info {
  background-color: rgba(26, 42, 94, 0.06);
  color: var(--color-primary);
  border: 1px solid rgba(26, 42, 94, 0.15);
}

/* ============================================================
   5. İÇ SAYFA HERO BÖLÜMÜ
   ============================================================ */
.page-hero {
  position: relative;
  padding: var(--space-4xl) 0 var(--space-3xl);
  background: linear-gradient(
    135deg,
    var(--color-primary-dark) 0%,
    var(--color-primary) 40%,
    var(--color-primary-light) 100%
  );
  overflow: hidden;
  text-align: center;
}

/* Dekoratif daire deseni */
.page-hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 400px;
  height: 400px;
  border-radius: var(--radius-full);
  background: radial-gradient(circle, rgba(212, 168, 67, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -5%;
  width: 300px;
  height: 300px;
  border-radius: var(--radius-full);
  background: radial-gradient(circle, rgba(255, 255, 255, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 1;
}

.page-hero__subtitle {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-lg);
  position: relative;
  z-index: 1;
}

/* Breadcrumb */
.page-hero__breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  position: relative;
  z-index: 1;
}

.page-hero__breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.page-hero__breadcrumb a:hover {
  color: var(--color-secondary-light);
}

.page-hero__breadcrumb-separator {
  font-size: var(--font-size-xs);
  opacity: 0.5;
}

.page-hero__breadcrumb-current {
  color: var(--color-secondary-light);
  font-weight: 500;
}

@media (min-width: 768px) {
  .page-hero {
    padding: var(--space-4xl) 0;
  }

  .page-hero__title {
    font-size: var(--font-size-4xl);
  }
}

/* ============================================================
   6. CTA BÖLÜMÜ
   ============================================================ */
.cta-section {
  position: relative;
  padding: var(--space-3xl) 0;
  background: linear-gradient(
    135deg,
    var(--color-primary-dark) 0%,
    var(--color-primary) 50%,
    var(--color-primary-light) 100%
  );
  text-align: center;
  overflow: hidden;
}

/* Dekoratif dalga üst kenar */
.cta-section::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--color-bg-primary);
  clip-path: ellipse(55% 100% at 50% 0%);
}

.cta-section__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 1;
}

.cta-section__text {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin: 0 auto var(--space-xl);
  line-height: 1.7;
  position: relative;
  z-index: 1;
}

.cta-section__actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  position: relative;
  z-index: 1;
}

.cta-section__phone {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-secondary-light);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.cta-section__phone svg {
  width: 22px;
  height: 22px;
}

@media (min-width: 576px) {
  .cta-section__actions {
    flex-direction: row;
    justify-content: center;
  }
}

@media (min-width: 768px) {
  .cta-section {
    padding: var(--space-4xl) 0;
  }

  .cta-section__title {
    font-size: var(--font-size-3xl);
  }
}

/* CTA bölümü içindeki butonlar — koyu arka planda beyaz görünüm */
.cta-section .btn--secondary {
  background: transparent;
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.5);
}

.cta-section .btn--secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #ffffff;
  color: #ffffff;
}

/* ============================================================
   7. WHATSAPP BUTONU
   ============================================================ */
.whatsapp-btn {
  position: fixed;
  bottom: 100px;
  right: 24px;
  z-index: 900;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background-color: #25d366;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
  cursor: pointer;
}

.whatsapp-btn svg {
  width: 28px;
  height: 28px;
}

.whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.45);
}

/* Tooltip */
.whatsapp-btn__tooltip {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--color-text-primary);
  color: #ffffff;
  font-size: var(--font-size-sm);
  font-weight: 500;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.whatsapp-btn__tooltip::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -6px;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-left-color: var(--color-text-primary);
  border-right: 0;
}

.whatsapp-btn:hover .whatsapp-btn__tooltip {
  opacity: 1;
}

/* Bounce animasyonu — JS ile 2sn sonra tetiklenir */
.whatsapp-btn.is-bouncing {
  animation: whatsapp-bounce 1s ease;
}

@keyframes whatsapp-bounce {
  0%, 100% { transform: translateY(0); }
  20% { transform: translateY(-12px); }
  40% { transform: translateY(-6px); }
  60% { transform: translateY(-10px); }
  80% { transform: translateY(-4px); }
}

/* ============================================================
   8. SCROLL-TO-TOP BUTONU
   ============================================================ */
.scroll-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 800;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition:
    opacity var(--transition-base),
    visibility var(--transition-base),
    transform var(--transition-base),
    background-color var(--transition-fast);
}

.scroll-top svg {
  width: 20px;
  height: 20px;
}

.scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  box-shadow: var(--shadow-lg);
}

/* ============================================================
   9. MOBİL ALT BAR
   ============================================================ */
.mobile-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 950;
  display: flex;
  background-color: var(--color-bg-primary);
  box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.1);
  border-top: 1px solid var(--color-border);
  padding: var(--space-sm) 0;
  transform: translateY(0);
  transition: transform var(--transition-base);
}

.mobile-bar.is-hidden {
  transform: translateY(100%);
}

.mobile-bar__item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: var(--space-xs) 0;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.mobile-bar__item svg {
  width: 22px;
  height: 22px;
}

.mobile-bar__item--phone {
  color: var(--color-primary);
}

.mobile-bar__item--whatsapp {
  color: #25d366;
}

/* Masaüstünde gizle */
@media (min-width: 768px) {
  .mobile-bar {
    display: none;
  }
}

/* ============================================================
   10. SKIP-TO-CONTENT LİNKİ
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  padding: var(--space-sm) var(--space-lg);
  background-color: var(--color-primary);
  color: #ffffff;
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

/* ============================================================
   11. MODAL (Hızlı Danışmanlık Popup)
   ============================================================ */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal.is-open {
  opacity: 1;
  visibility: visible;
}

.modal__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}

.modal__card {
  position: relative;
  background: var(--color-bg-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  max-width: 480px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: scale(0.9) translateY(20px);
  transition: transform var(--transition-base);
  z-index: 1;
}

.modal.is-open .modal__card {
  transform: scale(1) translateY(0);
}

.modal__close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-bg-secondary);
  color: var(--color-text-secondary);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
  border: none;
  line-height: 1;
}

.modal__close:hover {
  background: var(--color-danger);
  color: #ffffff;
}

.modal__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
  padding-right: var(--space-2xl);
}

.modal__text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

.modal__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.modal__success {
  margin-top: var(--space-md);
}

/* Accordion Bileşeni */
.accordion__item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  overflow: hidden;
  background: var(--color-bg-primary);
  transition: box-shadow var(--transition-base);
}

.accordion__item:hover {
  box-shadow: var(--shadow-sm);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-lg);
  font-family: var(--font-heading);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-primary);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: color var(--transition-fast);
}

.accordion__trigger:hover {
  color: var(--color-primary);
}

.accordion__trigger[aria-expanded="true"] {
  color: var(--color-primary);
}

.accordion__icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.accordion__trigger[aria-expanded="true"] .accordion__icon {
  transform: rotate(45deg);
}

.accordion__title {
  flex: 1;
}

.accordion__content {
  overflow: hidden;
  transition: max-height 300ms ease;
}

.accordion__body {
  padding: 0 var(--space-lg) var(--space-lg);
}

.accordion__body p {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.accordion__body a {
  color: var(--color-primary);
  font-weight: 500;
  text-decoration: underline;
}

.accordion__body a:hover {
  color: var(--color-secondary);
}


/* ============================================================
   PAGE FAQ SECTION
   ============================================================ */
.page-faq {
  background: var(--color-bg-secondary);
}

.page-faq__container {
  max-width: 800px;
  margin: 0 auto;
}