/* ========================================================================== 
   Variables
   ========================================================================== */

:root {
  /* Color Palette */
  --color-background: #050816; /* deep navy / near-black */
  --color-surface: #0f172a; /* elevated surface navy */
  --color-surface-subtle: #111827;
  --color-text: #f9fafb; /* almost white */
  --color-text-muted: #9ca3af; /* graphite gray */

  --color-primary: #ff5a5f; /* vibrant coral */
  --color-primary-soft: rgba(255, 90, 95, 0.1);

  --color-success: #16a34a;
  --color-warning: #fbbf24;
  --color-danger: #ef4444;

  --color-border-subtle: #1f2933;
  --color-border-strong: #4b5563;

  --color-neutral-50: #f9fafb;
  --color-neutral-100: #f3f4f6;
  --color-neutral-200: #e5e7eb;
  --color-neutral-300: #d1d5db;
  --color-neutral-400: #9ca3af;
  --color-neutral-500: #6b7280;
  --color-neutral-600: #4b5563;
  --color-neutral-700: #374151;
  --color-neutral-800: #1f2937;
  --color-neutral-900: #111827;

  --color-accent-gold: #fbbf24; /* refined accent gold */

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --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 */
  --font-size-5xl: 3rem;     /* 48px */

  --line-height-tight: 1.1;
  --line-height-snug: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing scale (px-based, expressed as 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-sm: 0.25rem;  /* 4px */
  --radius-md: 0.5rem;   /* 8px */
  --radius-lg: 0.75rem;  /* 12px */
  --radius-xl: 1rem;     /* 16px */
  --radius-full: 999px;

  /* Shadows (subtle but premium) */
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.45);
  --shadow-elevated: 0 24px 60px rgba(0, 0, 0, 0.65);
  --shadow-soft-inner: inset 0 1px 0 rgba(255, 255, 255, 0.02);

  /* Transitions & Motion */
  --transition-fast: 120ms ease-out;
  --transition-normal: 200ms ease-out;
  --transition-slow: 320ms ease;

  /* Layout */
  --container-max-width: 1120px;
  --container-padding-x: 1.5rem;
}

@media (min-width: 1280px) {
  :root {
    --container-max-width: 1200px;
  }
}

/* ========================================================================== 
   Reset / Normalize
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  margin: 0;
}

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

ul[role='list'],
ol[role='list'] {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

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

img {
  height: auto;
}

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

button {
  cursor: pointer;
}

button:disabled,
[aria-disabled='true'] {
  cursor: not-allowed;
}

/* Remove default underline and color inheritance handled in base */
a {
  text-decoration: none;
  color: inherit;
}

/* Better line wrapping */
body {
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

/* ========================================================================== 
   Base
   ========================================================================== */

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  background-color: var(--color-background);
  color: var(--color-text);
  min-height: 100vh;
}

main {
  min-height: 60vh;
}

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

h1 {
  font-size: clamp(var(--font-size-3xl), 4vw, var(--font-size-5xl));
  letter-spacing: -0.03em;
  margin-bottom: var(--space-4);
}

h2 {
  font-size: clamp(var(--font-size-2xl), 3vw, var(--font-size-4xl));
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}

h3 {
  font-size: var(--font-size-2xl);
  letter-spacing: -0.01em;
  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-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}

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

strong {
  font-weight: 600;
  color: var(--color-text);
}

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

/* Links: bold accents, premium feel */
a {
  color: var(--color-primary);
  transition: color var(--transition-normal), opacity var(--transition-fast);
}

a:hover,
a:focus-visible {
  color: var(--color-accent-gold);
}

/* Lists */
ul,
ol {
  margin-left: var(--space-4);
  margin-bottom: var(--space-4);
}

li + li {
  margin-top: var(--space-1);
}

/* Horizontal rule */
hr {
  border: 0;
  border-top: 1px solid var(--color-border-subtle);
  margin: var(--space-6) 0;
}

/* ========================================================================== 
   Accessibility & Motion
   ========================================================================== */

:focus-visible {
  outline: 2px solid var(--color-accent-gold);
  outline-offset: 3px;
}

:focus {
  outline: none;
}

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

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

/* Layout container */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding-x);
  padding-right: var(--container-padding-x);
}

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

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

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

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

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

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

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

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

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

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

.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-8);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-8);
}

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

/* 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;
}

/* Text alignment */
.text-center {
  text-align: center;
}

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

/* Width helpers */
.w-full {
  width: 100%;
}

/* Spacing utilities (common) */
.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); }
.pt-8 { padding-top: var(--space-8); }
.pb-8 { padding-bottom: var(--space-8); }

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

/* Buttons: bold CTAs */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: #0b1120;
  background: linear-gradient(135deg, var(--color-primary), #ff7b6f);
  box-shadow: var(--shadow-soft);
  transition:
    background var(--transition-normal),
    color var(--transition-normal),
    box-shadow var(--transition-normal),
    border-color var(--transition-normal),
    transform var(--transition-fast);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-elevated);
  background: linear-gradient(135deg, #ff7b6f, var(--color-primary));
}

.btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-soft);
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent-gold);
  outline-offset: 3px;
}

.btn--secondary {
  background: transparent;
  color: var(--color-text);
  border-color: rgba(148, 163, 184, 0.7);
  box-shadow: none;
}

.btn--secondary:hover {
  background: rgba(15, 23, 42, 0.9);
  border-color: #e5e7eb;
  box-shadow: var(--shadow-soft);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: transparent;
  box-shadow: none;
}

.btn--ghost:hover {
  background: rgba(15, 23, 42, 0.7);
  color: var(--color-text);
}

.btn--sm {
  padding: 0.5rem 1rem;
  font-size: var(--font-size-xs);
}

.btn--lg {
  padding: 0.9rem 1.8rem;
  font-size: var(--font-size-base);
}

.btn:disabled,
.btn[aria-disabled='true'] {
  opacity: 0.6;
  box-shadow: none;
  pointer-events: none;
}

/* Form Controls */
.input,
.textarea,
.select {
  width: 100%;
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: #020617;
  color: var(--color-text);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast);
}

.input::placeholder,
.textarea::placeholder {
  color: var(--color-text-muted);
}

.input:focus-visible,
.textarea:focus-visible,
.select:focus-visible {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px rgba(255, 90, 95, 0.4);
}

.input--invalid,
.textarea--invalid,
.select--invalid {
  border-color: var(--color-danger);
}

label {
  display: inline-block;
  margin-bottom: var(--space-1);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text);
}

.field-helper {
  margin-top: var(--space-1);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.field-error {
  margin-top: var(--space-1);
  font-size: var(--font-size-xs);
  color: var(--color-danger);
}

/* Card: for case studies, services, testimonials */
.card {
  position: relative;
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  background: radial-gradient(circle at top left, rgba(248, 250, 252, 0.06), transparent 55%),
              radial-gradient(circle at bottom right, rgba(248, 250, 252, 0.03), transparent 60%),
              var(--color-surface);
  border: 1px solid rgba(148, 163, 184, 0.25);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition:
    transform var(--transition-normal),
    box-shadow var(--transition-normal),
    border-color var(--transition-normal),
    background var(--transition-slow);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(251, 191, 36, 0.18), transparent 52%);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(251, 191, 36, 0.6);
  box-shadow: var(--shadow-elevated);
}

.card:hover::before {
  opacity: 1;
}

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

.card-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--font-size-xl);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
}

.card-eyebrow {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

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

.card-footer {
  margin-top: var(--space-4);
}

/* Badge / Pill accents (for categories, languages like PL) */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background-color: rgba(15, 23, 42, 0.9);
  color: var(--color-text-muted);
  border: 1px solid rgba(148, 163, 184, 0.5);
}

.badge--primary {
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
  border-color: rgba(255, 90, 95, 0.4);
}

.badge--gold {
  background-color: rgba(251, 191, 36, 0.1);
  color: var(--color-accent-gold);
  border-color: rgba(251, 191, 36, 0.4);
}

/* Testimonial quote style (basic) */
.quote {
  position: relative;
  padding-left: var(--space-4);
  border-left: 2px solid rgba(148, 163, 184, 0.7);
  color: var(--color-text-muted);
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
}

.quote::before {
  content: "\201C";
  position: absolute;
  left: -0.3em;
  top: -0.1em;
  font-size: 3rem;
  color: rgba(148, 163, 184, 0.25);
}

/* Navigation minimal base (structure only) */
.navbar {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.75));
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  font-size: var(--font-size-sm);
}

.nav-link {
  position: relative;
  color: var(--color-text-muted);
  padding-bottom: 0.1rem;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.2rem;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-gold));
  border-radius: 999px;
  transition: width var(--transition-normal);
}

.nav-link:hover,
.nav-link[aria-current='page'] {
  color: var(--color-text);
}

.nav-link:hover::after,
.nav-link[aria-current='page']::after {
  width: 100%;
}

/* Hero media helper */
.hero-media {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-elevated);
}

.hero-media img,
.hero-media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* CTA strip */
.cta-strip {
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  background: radial-gradient(circle at top left, rgba(255, 90, 95, 0.28), transparent 55%),
              radial-gradient(circle at bottom right, rgba(251, 191, 36, 0.25), transparent 60%),
              linear-gradient(135deg, #020617, #020617);
  border: 1px solid rgba(249, 250, 251, 0.16);
  box-shadow: var(--shadow-soft);
}

/* Tagline text style */
.tagline {
  font-family: var(--font-display);
  font-size: var(--font-size-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
}

/* End of base.css */