/* ========================================================================
   Variables
   ======================================================================== */
:root {
  /* Color palette - tuned for a clean, trustworthy, minimalist Turkish service site */
  --color-background: #f5f7fa;
  --color-surface: #ffffff;
  --color-text: #111827;
  --color-text-muted: #6b7280;
  --color-primary: #2563eb; /* calm professional blue */
  --color-primary-soft: #e0edff;
  --color-primary-dark: #1d4ed8;
  --color-success: #16a34a;
  --color-warning: #f59e0b;
  --color-danger: #dc2626;

  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2933;
  --color-gray-900: #111827;

  /* Typography - Latin + Turkish support */
  --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "Roboto", "Helvetica Neue", Arial, "Noto Sans", sans-serif,
    "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  --font-serif: "Georgia", "Times New Roman", serif;
  --font-mono: "SF Mono", Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;

  /* Font sizes (root is 16px) */
  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-lg: 1.125rem;  /* 18px */
  --font-size-xl: 1.25rem;   /* 20px */
  --font-size-2xl: 1.5rem;   /* 24px */
  --font-size-3xl: 1.875rem; /* 30px */
  --font-size-4xl: 2.25rem;  /* 36px */

  /* Line heights */
  --line-height-tight: 1.2;
  --line-height-snug: 1.35;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing scale (px-based, used via rem) */
  --space-0: 0;
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;   /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;     /* 16px */
  --space-5: 1.25rem;  /* 20px */
  --space-6: 1.5rem;   /* 24px */
  --space-8: 2rem;     /* 32px */
  --space-10: 2.5rem;  /* 40px */
  --space-12: 3rem;    /* 48px */
  --space-16: 4rem;    /* 64px */
  --space-20: 5rem;    /* 80px */
  --space-24: 6rem;    /* 96px */

  /* Radius */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 999px; /* pill */

  /* Shadows - subtle for trustworthy look */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 10px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 10px 25px rgba(15, 23, 42, 0.12);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-normal: 200ms ease-out;
  --transition-slow: 300ms ease-out;
}

/* Reduced motion adjustments */
@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0ms;
    --transition-normal: 0ms;
    --transition-slow: 0ms;
  }
}

/* ========================================================================
   Reset / Normalize
   ======================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
}

h1, h2, h3, h4, h5, h6,
p, figure, blockquote,
dl, dd {
  margin: 0;
}

ul, ol {
  margin: 0;
  padding: 0;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  border: none;
  background: none;
  padding: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Remove list styles on ul, ol elements with a list role, for accessibility */
ul[role="list"],
ol[role="list"] {
  list-style: none;
}

/* ========================================================================
   Base Styles
   ======================================================================== */
body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  background-color: var(--color-background);
  color: var(--color-text);
  min-height: 100vh;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

main {
  min-height: 60vh;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--color-gray-900);
}

h1 {
  font-size: clamp(2rem, 4vw, var(--font-size-4xl));
  margin-bottom: var(--space-4);
}

h2 {
  font-size: clamp(1.5rem, 3vw, var(--font-size-3xl));
  margin-bottom: var(--space-3);
}

h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-2);
}

h4 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

h5 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-1);
}

h6 {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-1);
}

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
}

strong {
  font-weight: 600;
}

small {
  font-size: var(--font-size-sm);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-normal);
}

a:hover {
  color: #ababab;
}

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

code, pre {
  font-family: var(--font-mono);
}

hr {
  border: none;
  border-top: 1px solid var(--color-gray-200);
  margin: var(--space-6) 0;
}

/* Body layout helpers for a multi-page site */
body[data-layout="centered"] main {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ========================================================================
   Accessibility & Focus
   ======================================================================== */
:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ========================================================================
   Utilities
   ======================================================================== */

/* Layout containers for content optimized for Turkish users on desktop & mobile */
.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
  max-width: 1120px; /* comfortable reading width */
}

@media (min-width: 1200px) {
  .container {
    max-width: 1200px;
  }
}

/* Flex utilities */
.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

.flex-column {
  flex-direction: column;
}

.flex-row {
  flex-direction: row;
}

.flex-wrap {
  flex-wrap: wrap;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.items-center {
  align-items: center;
}

.items-start {
  align-items: flex-start;
}

.items-end {
  align-items: flex-end;
}

.gap-2 {
  gap: var(--space-2);
}

.gap-4 {
  gap: var(--space-4);
}

.gap-6 {
  gap: var(--space-6);
}

/* Grid utilities */
.grid {
  display: grid;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-gap-4 {
  gap: var(--space-4);
}

.grid-gap-6 {
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

/* Spacing utilities (commonly needed) */
.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.py-6 {
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
}
.py-8 {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-muted); }

.bg-surface { background-color: var(--color-surface); }
.bg-primary-soft { background-color: var(--color-primary-soft); }

.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }

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

/* ========================================================================
   Components
   ======================================================================== */

/* Buttons - primary call-to-action for Turkish service flows */
.button,
button,
input[type="button"],
input[type="submit"],
input[type="reset"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  background-color: var(--color-primary);
  color: #ffffff;
  font-size: var(--font-size-sm);
  font-weight: 500;
  line-height: 1.2;
  cursor: pointer;
  transition:
    background-color var(--transition-normal),
    border-color var(--transition-normal),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.button:hover,
button:hover,
input[type="button"]:hover,
input[type="submit"]:hover,
input[type="reset"]:hover {
  background-color: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.button:active,
button:active,
input[type="button"]:active,
input[type="submit"]:active,
input[type="reset"]:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.button:focus-visible,
button:focus-visible,
input[type="button"]:focus-visible,
input[type="submit"]:focus-visible,
input[type="reset"]:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.button--ghost {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.button--ghost:hover {
  background-color: var(--color-primary-soft);
}

.button--muted {
  background-color: var(--color-gray-100);
  color: var(--color-gray-800);
  border-color: var(--color-gray-200);
}

.button[disabled],
button[disabled],
input[type="button"][disabled],
input[type="submit"][disabled],
input[type="reset"][disabled] {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

/* Inputs & form controls - for booking, support requests, etc. */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input[type="search"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-gray-300);
  background-color: #ffffff;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  line-height: 1.4;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-gray-400);
}

input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary-soft);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

select {
  background-image: url("data:image/svg+xml,%3Csvg width='20' height='20' viewBox='0 0 20 20' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M6 8L10 12L14 8' stroke='%239ca3af' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 16px 16px;
  padding-right: 2.5rem;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

input[disabled],
textarea[disabled],
select[disabled] {
  background-color: var(--color-gray-100);
  cursor: not-allowed;
  color: var(--color-gray-500);
}

/* Cards - for service descriptions, testimonials, etc. */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(148, 163, 184, 0.16);
}

.card--highlight {
  border-color: var(--color-primary-soft);
  box-shadow: var(--shadow-md);
}

.card__header {
  margin-bottom: var(--space-3);
}

.card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-1);
}

.card__subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.card__body {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Simple tag/badge for categories like "Fatura Ödeme", "Randevu" */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-xl);
  background-color: var(--color-gray-100);
  color: var(--color-gray-700);
  font-size: var(--font-size-xs);
  font-weight: 500;
}

.badge--primary {
  background-color: var(--color-primary-soft);
  color: var(--color-primary-dark);
}

/* Section wrapper for consistent vertical rhythm across pages */
.section {
  padding-top: var(--space-10);
  padding-bottom: var(--space-10);
}

@media (max-width: 768px) {
  .section {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }
}

/* Hero-style heading area (About, Services, etc.) */
.section-hero {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

@media (max-width: 768px) {
  .section-hero {
    padding-top: var(--space-10);
    padding-bottom: var(--space-10);
  }
}

.section-hero__title {
  font-size: clamp(2rem, 3vw, 2.5rem);
  margin-bottom: var(--space-3);
}

.section-hero__subtitle {
  max-width: 36rem;
  color: var(--color-text-muted);
}

/* Alerts (for confirmations, warnings, etc.) */
.alert {
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  border: 1px solid transparent;
}

.alert--success {
  background-color: #ecfdf3;
  border-color: #bbf7d0;
  color: #166534;
}

.alert--warning {
  background-color: #fffbeb;
  border-color: #fef3c7;
  color: #92400e;
}

.alert--danger {
  background-color: #fef2f2;
  border-color: #fecaca;
  color: #b91c1c;
}

/* Footer basics */
.site-footer {
  border-top: 1px solid var(--color-gray-200);
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ========================================================================
   Motion preferences
   ======================================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}