/* ========================================================================== 
   Variables
   ========================================================================== */
:root {
  /* Color Palette */
  --color-background: #f5f7fb;
  --color-surface: #ffffff;
  --color-surface-muted: #e6ebf4;

  --color-text: #111827;
  --color-text-muted: #4b5563;
  --color-text-soft: #6b7280;

  --color-primary: #1d4ed8; /* deep professional blue */
  --color-primary-soft: #dbe5ff;
  --color-primary-dark: #12338f;

  --color-accent: #0ea5e9; /* subtle technical accent (optional) */

  --color-success: #16a34a;
  --color-warning: #eab308;
  --color-danger: #dc2626;

  /* Neutral grays (steel / technical) */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2933;
  --gray-900: #111827;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;

  --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-height-tight: 1.2;
  --line-height-base: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing scale (0–96px) */
  --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-sm: 0.25rem; /* 4px */
  --radius-md: 0.5rem;  /* 8px */
  --radius-lg: 0.75rem; /* 12px */
  --radius-xl: 1rem;    /* 16px */
  --radius-full: 9999px;

  /* Shadows (subtle technical depth) */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 10px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 10px 30px rgba(15, 23, 42, 0.12);

  /* Transitions */
  --duration-fast: 150ms;
  --duration-base: 200ms;
  --duration-slow: 300ms;
  --easing-standard: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Darker focus outlines for accessibility on light backgrounds */
:root {
  --focus-ring-color: rgba(37, 99, 235, 0.45);
  --focus-ring-width: 2px;
  --focus-ring-offset: 2px;
}

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

html {
  margin: 0;
  padding: 0;
  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%;
}

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

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

textarea {
  resize: vertical;
}

a {
  color: inherit;
}

/* Smooth font rendering on supported browsers */
body,
input,
button,
textarea,
select {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========================================================================== 
   Base Styles
   ========================================================================== */
body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  background: radial-gradient(circle at top, #f9fbff 0%, var(--color-background) 55%, #edf1f9 100%);
  color: var(--color-text);
  min-height: 100vh;
}

main {
  min-height: 60vh;
}

/* Headings - modern, clear hierarchy */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--color-text);
}

h1 {
  font-size: clamp(2.25rem, 3vw + 1rem, 3rem);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
}

h2 {
  font-size: clamp(1.875rem, 2.6vw + 0.5rem, 2.4rem);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}

h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-2);
}

h4 {
  font-size: 1.25rem;
  margin-bottom: var(--space-2);
}

p {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-muted);
}

p + p {
  margin-top: var(--space-3);
}

/* Links - subtle, professional */
a {
  text-decoration: none;
  color: var(--color-primary);
  transition: color var(--duration-base) var(--easing-standard),
    opacity var(--duration-base) var(--easing-standard);
}

a:hover {
  color: var(--color-primary-dark);
}

a:active {
  opacity: 0.85;
}

/* Lists */
ul,
ol {
  padding-left: 1.25rem;
}

li + li {
  margin-top: 0.25rem;
}

/* Images */
img {
  border-radius: var(--radius-md);
}

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

:focus-visible {
  outline: var(--focus-ring-width) solid var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
}

@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;
  }
}

/* ========================================================================== 
   Layout Utilities
   ========================================================================== */
.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
  max-width: 72rem; ~1152px, good for professional content
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
}

.section {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

.section--muted {
  background: linear-gradient(135deg, var(--gray-50), var(--color-surface));
}

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

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

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

.flex-center {
  align-items: center;
  justify-content: center;
}

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

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

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

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

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

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

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}

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

/* Alignment */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.text-muted {
  color: var(--color-text-soft);
}

/* Spacing utilities (limited set for base) */
.mt-4 {
  margin-top: var(--space-4);
}

.mt-6 {
  margin-top: var(--space-6);
}

.mb-4 {
  margin-bottom: var(--space-4);
}

.mb-6 {
  margin-bottom: var(--space-6);
}

.py-8 {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

/* 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;
}

/* ========================================================================== 
   Components
   ========================================================================== */
/* Buttons - clear hierarchy, good contrast */
.button,
button,
input[type="button"],
input[type="submit"],
input[type="reset"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  background: var(--color-primary);
  color: #ffffff;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition:
    background-color var(--duration-base) var(--easing-standard),
    border-color var(--duration-base) var(--easing-standard),
    box-shadow var(--duration-base) var(--easing-standard),
    transform var(--duration-fast) var(--easing-standard),
    color var(--duration-base) var(--easing-standard);
}

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

.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--secondary {
  background: #ffffff;
  color: var(--color-primary)!important;
  border-color: var(--gray-200);
  box-shadow: var(--shadow-sm);
}

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

.button--ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: transparent;
  box-shadow: none;
}

.button--ghost:hover {
  background: rgba(37, 99, 235, 0.06);
  color: var(--color-primary);
}

.button:disabled,
button:disabled,
input[type="button"]:disabled,
input[type="submit"]:disabled,
input[type="reset"]:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

/* Inputs & form controls */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input[type="search"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 0.65rem 0.9rem;
  font-size: var(--font-size-sm);
  color: var(--color-text);
  background-color: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  box-shadow: none;
  transition:
    border-color var(--duration-base) var(--easing-standard),
    box-shadow var(--duration-base) var(--easing-standard),
    background-color var(--duration-base) var(--easing-standard);
}

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

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary-soft);
}

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

label {
  display: inline-block;
  margin-bottom: 0.25rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--gray-700);
}

/* Card - used for service highlights, references, etc. */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148, 163, 184, 0.25);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
}

.card--muted {
  background: linear-gradient(135deg, #f8fafc, #edf2f7);
}

.card-header {
  margin-bottom: var(--space-4);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.card-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-soft);
}

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

/* Tag / Pill for statuses like "Gyors reagálás", "Non-stop támogatás" */
.badge {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-full);
  padding: 0.15rem 0.6rem;
  font-size: var(--font-size-xs);
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

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

.badge--success {
  background-color: rgba(22, 163, 74, 0.08);
  color: var(--color-success);
}

.badge--neutral {
  background-color: rgba(148, 163, 184, 0.12);
  color: var(--gray-700);
}

/* Subtle top border section header for references / support sections */
.section-header {
  border-top: 1px solid var(--gray-200);
  padding-top: var(--space-6);
  margin-bottom: var(--space-6);
}

.section-eyebrow {
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-soft);
  margin-bottom: var(--space-2);
}

/* Navigation baseline (mobile-friendly) */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(248, 250, 252, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.65rem;
  padding-bottom: 0.65rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--font-size-sm);
}

.nav-link {
  position: relative;
  padding: 0.25rem 0;
  color: var(--color-text-soft);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width var(--duration-base) var(--easing-standard);
}

.nav-link:hover {
  color: var(--color-text);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link--active {
  color: var(--color-text);
}

.nav-link--active::after {
  width: 100%;
}

@media (max-width: 768px) {
  .nav-links {
    display: none; /* actual toggle handled in app-specific CSS/JS */
  }
}

/* Hero baseline (for main trust-building intro) */
.hero {
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

.hero-eyebrow {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: var(--space-2);
}

.hero-title {
  max-width: 18ch;
}

.hero-subtitle {
  margin-top: var(--space-3);
}

.hero-meta {
  margin-top: var(--space-6);
}

/* Footer baseline */
.footer {
  border-top: 1px solid var(--gray-200);
  background: #f9fafb;
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
  font-size: var(--font-size-sm);
}

.footer-muted {
  color: var(--color-text-soft);
}