/* ============================================================
   VİZUAL İYİLEŞTİRMELER - ESTETİK GÜNCELLEMELER
   ============================================================ */

/* === GOOGLE FONTS === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

/* === TYPOGRAPHY OVERRIDES === */
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
  line-height: 1.7;
  letter-spacing: -0.011em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: -0.025em;
}

h1 { 
  font-weight: 800; 
  letter-spacing: -0.04em;
}

h2 { font-weight: 700; }
h3 { font-weight: 700; }
h4 { font-weight: 600; }

/* === BETTER BUTTONS === */
.btn {
  font-weight: 600;
  border-width: 2px;
  border-radius: 12px;
  letter-spacing: -0.01em;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.btn--primary {
  box-shadow: 0 2px 8px rgba(var(--color-primary-rgb), 0.2), 0 1px 3px rgba(var(--color-primary-rgb), 0.15);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(var(--color-primary-rgb), 0.3), 0 2px 6px rgba(var(--color-primary-rgb), 0.2);
}

.btn--secondary {
  box-shadow: 0 2px 8px rgba(var(--color-secondary-rgb), 0.2), 0 1px 3px rgba(var(--color-secondary-rgb), 0.15);
}

.btn--secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(var(--color-secondary-rgb), 0.3), 0 2px 6px rgba(var(--color-secondary-rgb), 0.2);
}

.btn--outline:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.15);
}

.btn--ghost:hover {
  background-color: rgba(var(--color-primary-rgb), 0.08);
}

/* === SECTION IMPROVEMENTS === */
.section {
  padding: 3.5rem 0;
}

.section--alt {
  background: linear-gradient(180deg, #F7F8FA 0%, rgba(247, 248, 250, 0.4) 100%);
}

@media (max-width: 768px) {
  .section {
    padding: 2.5rem 0;
  }
}

/* === SECTION HEADERS === */
.section-header {
  margin-bottom: 2.5rem;
}

.section-header__title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  letter-spacing: -0.04em;
  line-height: 1.2;
}

.section-header__desc {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  max-width: 700px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .section-header {
    margin-bottom: 2rem;
  }
  
  .section-header__title {
    font-size: 1.75rem;
  }
  
  .section-header__desc {
    font-size: 1rem;
  }
}

/* === SOLUTION ITEMS ENHANCEMENT === */
.solution-item {
  background: white;
  border: 2px solid #E5E7EB;
  border-radius: 16px;
  padding: 1.5rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  height: 100%;
}

.solution-item:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: 0 12px 32px rgba(var(--color-primary-rgb), 0.12), 0 4px 12px rgba(var(--color-primary-rgb), 0.08);
}

.solution-item__icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.2);
}

.solution-item__icon svg {
  color: white;
  width: 32px;
  height: 32px;
}

.solution-item__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: #1A1A1A;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.solution-item__desc {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #6B7280;
  margin-bottom: 1rem;
}

/* === PROCESS STEPS ENHANCEMENT === */
.process-steps {
  position: relative;
}

.process-step {
  text-align: center;
  position: relative;
  padding: 1.5rem 1.25rem;
  background: white;
  border-radius: 16px;
  border: 2px solid #E5E7EB;
  transition: all 0.3s ease;
}

.process-step:hover {
  border-color: var(--color-primary);
  box-shadow: 0 8px 24px rgba(var(--color-primary-rgb), 0.1);
  transform: translateY(-4px);
}

.process-step__number {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  box-shadow: 0 6px 20px rgba(var(--color-primary-rgb), 0.3);
  font-size: 1.5rem;
  font-weight: 800;
  color: white;
  letter-spacing: -0.02em;
}

.process-step__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.process-step__desc {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #6B7280;
}

/* === CATEGORY CARDS === */
.category-card {
  background: white;
  border: 2px solid #E5E7EB;
  border-radius: 16px;
  padding: 2rem 1.5rem;
  text-align: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: block;
  height: 100%;
}

.category-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-secondary);
  box-shadow: 0 12px 32px rgba(var(--color-secondary-rgb), 0.12), 0 4px 12px rgba(var(--color-secondary-rgb), 0.08);
}

.category-card__icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-light) 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  box-shadow: 0 4px 12px rgba(var(--color-secondary-rgb), 0.2);
}

.category-card__icon svg {
  color: white;
}

.category-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: #1A1A1A;
  letter-spacing: -0.02em;
}

.category-card__desc {
  font-size: 0.9375rem;
  color: #6B7280;
  line-height: 1.6;
}

/* === REFERENCES GRID === */
.references-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  align-items: center;
  justify-items: center;
}

.reference-logo {
  padding: 1.5rem;
  background: white;
  border: 2px solid #E5E7EB;
  border-radius: 12px;
  transition: all 0.3s ease;
  filter: grayscale(100%) opacity(0.6);
  width: 100%;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.reference-logo:hover {
  filter: grayscale(0%) opacity(1);
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(var(--color-primary-rgb), 0.1);
}

/* === LINKS === */
.link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.link--primary {
  color: var(--color-primary);
}

.link--primary:hover {
  color: var(--color-primary-dark);
  gap: 0.5rem;
}

/* === HERO ENHANCEMENTS === */
.hero__grid {
  align-items: center;
  gap: 4rem;
}

.hero__content h1 {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.045em;
}

.hero__content p {
  font-size: 1.375rem;
  line-height: 1.7;
  color: #6B7280;
  margin-bottom: 2rem;
}

@media (max-width: 768px) {
  .hero__content h1 {
    font-size: 2.25rem;
  }
  
  .hero__content p {
    font-size: 1.125rem;
  }
}

/* === SMOOTH ANIMATIONS === */
@media (prefers-reduced-motion: no-preference) {
  .solution-item,
  .category-card,
  .process-step,
  .reference-logo,
  .btn {
    will-change: transform;
  }
}

/* === GRID IMPROVEMENTS === */
.grid {
  gap: 1.5rem;
}

.grid--2,
.grid--3,
.grid--4 {
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .grid {
    gap: 1.25rem;
  }
}