/* =========================================
   Variables
   ========================================= */
:root {
  /* Color Palette */
  --color-background: #0b1020; /* deep navy background */
  --color-surface: #10182f; /* elevated surface/nav */
  --color-surface-alt: #141d38;
  --color-text: #f7f7fb; /* primary text on dark */
  --color-text-muted: #a9b2c8;
  --color-border-subtle: #283250;

  --color-primary: #ff6a1a; /* vibrant orange */
  --color-primary-soft: rgba(255, 106, 26, 0.1);

  --color-accent-teal: #1fbfbf; /* teal accents */
  --color-accent-teal-soft: rgba(31, 191, 191, 0.12);

  --color-success: #27c46b;
  --color-warning: #ffb020;
  --color-danger: #ff4b4b;

  --gray-50: #f7f7fb;
  --gray-100: #e8eaf4;
  --gray-200: #d3d7e6;
  --gray-300: #b6bed5;
  --gray-400: #9099b6;
  --gray-500: #6a7392;
  --gray-600: #4b5472;
  --gray-700: #343c57;
  --gray-800: #222942;
  --gray-900: #14182a;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Roboto", "Segoe UI", sans-serif;
  --font-heading: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Display", "Poppins", "Inter", sans-serif;
  --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-md: 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: 1.15;
  --line-height-snug: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing Scale (px) */
  --space-0: 0;
  --space-1: 2px;
  --space-2: 4px;
  --space-3: 6px;
  --space-4: 8px;
  --space-5: 10px;
  --space-6: 12px;
  --space-8: 16px;
  --space-10: 20px;
  --space-12: 24px;
  --space-16: 32px;
  --space-20: 40px;
  --space-24: 48px;
  --space-32: 64px;
  --space-40: 80px;
  --space-48: 96px;

  /* Radius */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 18px;
  --radius-full: 999px;

  /* Shadows (subtle, for trustworthy feel) */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.25);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.28);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.35);
  --shadow-soft-glow: 0 0 0 1px rgba(255, 255, 255, 0.02), 0 18px 45px rgba(3, 8, 30, 0.9);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-normal: 180ms ease-out;
  --transition-slow: 240ms ease;

  /* Layout */
  --container-max-width: 1200px;
  --container-wide-max-width: 1440px;
}

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

  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

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

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

img {
  height: auto;
}

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

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

textarea {
  resize: vertical;
}

:focus:not(:focus-visible) {
  outline: none;
}

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

main {
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--gray-50);
  line-height: var(--line-height-tight);
}

h1 { font-size: var(--font-size-4xl); margin-bottom: var(--space-12); }

h2 { font-size: var(--font-size-3xl); margin-bottom: var(--space-10); }

h3 { font-size: var(--font-size-2xl); margin-bottom: var(--space-8); }

h4 { font-size: var(--font-size-xl); margin-bottom: var(--space-6); }

h5 { font-size: var(--font-size-lg); margin-bottom: var(--space-4); }

h6 { font-size: var(--font-size-md); margin-bottom: var(--space-3); text-transform: uppercase; letter-spacing: 0.06em; }

p {
  margin-bottom: var(--space-8);
  color: var(--color-text-muted);
}

strong, b {
  font-weight: 600;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  cursor: pointer;
  outline-offset: 2px;
  transition: color var(--transition-fast),
              opacity var(--transition-fast),
              text-decoration-color var(--transition-fast);
}

a:hover {
  color: #ff7e33;
}

a:active {
  opacity: 0.85;
}

hr {
  border: none;
  border-top: 1px solid var(--color-border-subtle);
  margin: var(--space-16) 0;
}

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

/* =========================================
   Accessibility & Focus
   ========================================= */
:focus-visible {
  outline: 2px solid var(--color-accent-teal);
  outline-offset: 3px;
}

[tabindex="-1"]:focus {
  outline: none !important;
}

/* 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
   ========================================= */
/* Container */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-8);
  padding-right: var(--space-8);
}

.container-wide {
  width: 100%;
  max-width: var(--container-wide-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-10);
  padding-right: var(--space-10);
}

/* Layout 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-column {
  display: flex;
  flex-direction: column;
}

.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

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

.grid-center {
  display: grid;
  place-items: center;
}

.hidden {
  display: none !important;
}

.visually-muted {
  color: var(--color-text-muted) !important;
}

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

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

.w-full {
  width: 100%;
}

.max-w-full {
  max-width: 100%;
}

/* Basic spacing utilities (vertical rhythm) */
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mt-8 { margin-top: var(--space-8) !important; }
.mb-8 { margin-bottom: var(--space-8) !important; }
.mt-16 { margin-top: var(--space-16) !important; }
.mb-16 { margin-bottom: var(--space-16) !important; }

/* =========================================
   Components
   ========================================= */
/* Buttons */
.button,
button.button,
input[type="button"].button,
input[type="submit"].button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  background: var(--color-primary);
  color: #050815!important;
  font-weight: 600;
  font-size: var(--font-size-sm);
  letter-spacing: 0.02em;
  text-transform: none;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color var(--transition-fast),
              box-shadow var(--transition-fast),
              transform var(--transition-fast),
              border-color var(--transition-fast),
              color var(--transition-fast),
              opacity var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.button:hover {
  background: #ff7e33;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.button:active {
  transform: translateY(0);
  box-shadow: var(--shadow-xs);
}

.button:disabled,
.button[aria-disabled="true"],
button[disabled] {
  cursor: not-allowed;
  opacity: 0.55;
  box-shadow: none;
}

.button--ghost {
  background: transparent;
  color: var(--gray-50)!important;
  border-color: var(--color-border-subtle);
  box-shadow: none;
}

.button--ghost:hover {
  background: rgba(255, 255, 255, 0.02);
  border-color: var(--gray-400);
}

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

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

.button--secondary {
  background: var(--gray-800);
  color: var(--gray-50)!important;
  border-color: var(--gray-600);
  box-shadow: var(--shadow-xs);
}

.button--secondary:hover {
  background: var(--gray-700);
}

/* Inputs & Form Controls */
.input,
select,
textarea,
input[type="text"],
input[type="email"],
input[type="search"],
input[type="password"],
input[type="number"],
input[type="tel"] {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: var(--color-surface);
  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,
input::placeholder,
textarea::placeholder {
  color: var(--gray-500);
}

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

input[disabled],
textarea[disabled],
select[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Cards */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.04);
  box-shadow: var(--shadow-soft-glow);
  padding: var(--space-12);
  color: var(--color-text);
}

.card--subtle {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(10, 19, 36, 0.95));
  border-color: rgba(255, 255, 255, 0.02);
  box-shadow: var(--shadow-sm);
}

.card-header {
  margin-bottom: var(--space-8);
}

.card-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--gray-50);
}

.card-subtitle {
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

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

/* Tag / Pill (for categories, promos) */
.pill {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius-full);
  padding: 0.25rem 0.7rem;
  font-size: var(--font-size-xs);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.pill--accent {
  background-color: var(--color-accent-teal-soft);
  color: var(--color-accent-teal);
}

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

/* =========================================
   Responsive Tweaks
   ========================================= */
@media (min-width: 768px) {
  h1 { font-size: var(--font-size-5xl); }
  h2 { font-size: var(--font-size-4xl); }
  h3 { font-size: var(--font-size-3xl); }
}

@media (max-width: 600px) {
  .container,
  .container-wide {
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }

  h1 { margin-bottom: var(--space-10); }
  h2 { margin-bottom: var(--space-8); }
}