/* ==========================================================================
   Variables
   ========================================================================== */
:root {
  /* Colors */
  --color-bg: #111111; /* velvet dark charcoal */
  --color-bg-alt: #1c0a10; /* deep burgundy-black */
  --color-surface: #1a1a1a;
  --color-surface-elevated: #1f1518;
  --color-text: #f5f5f5; /* warm ivory/light grey */
  --color-text-muted: #b3b3b3;
  --color-border-subtle: #2a2a2a;
  --color-border-strong: #3a3a3a;
  --color-primary: #dc2626; /* deep ruby red */
  --color-primary-soft: #f97373; /* soft scarlet tone */
  --color-success: #22c55e;
  --color-warning: #eab308;
  --color-danger: #ef4444;
  --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: #1f2933;
  --color-neutral-900: #111827;

  /* Typography */
  --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Playfair Display", "Times New Roman", serif;

  --font-size-xs: 0.75rem;   /* 12px */
  --font-size-sm: 0.875rem;  /* 14px */
  --font-size-base: 1rem;    /* 16px */
  --font-size-md: 1.0625rem; /* 17px */
  --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 (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-7: 1.75rem;  /* 28px */
  --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: 16px;
  --radius-xl: 24px;
  --radius-full: 999px;

  /* Shadows (subtle, elevated, dramatic for opulent cards) */
  --shadow-sm: 0 4px 10px rgba(0, 0, 0, 0.45);
  --shadow-md: 0 18px 45px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.75);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-base: 200ms ease-out;
  --transition-slow: 320ms ease-out;
}

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

html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
sub,
sup,
tt,
var,
b,
u,
i,
center,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
header,
hgroup,
main,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video {
  margin: 0;
  padding: 0;
  border: 0;
  font: inherit;
  vertical-align: baseline;
}

article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
menu,
nav,
section {
  display: block;
}

body {
  line-height: 1;
}

ol,
ul {
  list-style: none;
}

blockquote,
q {
  quotes: none;
}

blockquote::before,
blockquote::after,
q::before,
q::after {
  content: "";
  content: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  background: transparent;
  border-radius: 0;
}

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

html {
  scroll-behavior: smooth;
}

html,
body {
  overflow-x: clip;
  max-width: 100%;
}

/* Remove default focus outlines so we can style focus-visible explicitly */
:focus {
  outline: none;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */
body {
  min-height: 100vh;
  background: radial-gradient(circle at top left, #1f1518 0, #111111 42%, #050505 100%);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  display: block;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-neutral-50);
  letter-spacing: 0.03em;
}

h1 {
  font-size: clamp(2.75rem, 5vw, 3.5rem);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-4);
}

h2 {
  font-size: clamp(2rem, 3.5vw, 2.5rem);
  line-height: var(--line-height-snug);
  margin-bottom: var(--space-3);
}

h3 {
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  line-height: var(--line-height-snug);
  margin-bottom: var(--space-3);
}

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

h5 {
  font-size: 1.125rem;
  line-height: var(--line-height-snug);
  margin-bottom: var(--space-2);
}

h6 {
  font-size: 1rem;
  line-height: var(--line-height-snug);
  margin-bottom: var(--space-2);
}

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

strong,
b {
  font-weight: 600;
}

a {
  color: var(--color-primary-soft);
  text-decoration: none;
  position: relative;
  transition: color var(--transition-base);
}

a::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: -0.15em;
  height: 1px;
  background: linear-gradient(90deg, rgba(220, 38, 38, 0.1), rgba(220, 38, 38, 0.9));
  transform-origin: center;
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

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

a:hover::after {
  transform: scaleX(1);
}

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

code,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

hr {
  border: 0;
  border-top: 1px solid var(--color-border-subtle);
  margin: var(--space-8) 0;
}

/* ==========================================================================
   Accessibility & Motion
   ========================================================================== */
:focus-visible {
  outline: 2px solid var(--color-primary-soft);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   Utilities
   ========================================================================== */
.container {
  width: 100%;
  margin-inline: auto;
  padding-inline: var(--space-4);
  max-width: 1200px;
}

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

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

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

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

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

.gap-sm {
  gap: var(--space-3);
}

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

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

/* Grid helpers */
.grid {
  display: grid;
  gap: var(--space-6);
}

.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;
  }
}

/* Spacing utilities (margin / padding) */
.mt-0 { margin-top: 0 !important; }
.mt-xs { margin-top: var(--space-2) !important; }
.mt-sm { margin-top: var(--space-3) !important; }
.mt-md { margin-top: var(--space-4) !important; }
.mt-lg { margin-top: var(--space-6) !important; }
.mt-xl { margin-top: var(--space-8) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-xs { margin-bottom: var(--space-2) !important; }
.mb-sm { margin-bottom: var(--space-3) !important; }
.mb-md { margin-bottom: var(--space-4) !important; }
.mb-lg { margin-bottom: var(--space-6) !important; }
.mb-xl { margin-bottom: var(--space-8) !important; }

.px-section {
  padding-inline: var(--space-4);
}

.py-section {
  padding-block: var(--space-16);
}

@media (min-width: 1024px) {
  .px-section {
    padding-inline: var(--space-6);
  }
}

/* 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;
}

.sr-only-focusable:active,
.sr-only-focusable:focus {
  position: static;
  width: auto;
  height: auto;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

/* Elevation & surfaces for dark ruby theme */
.surface-base {
  background: radial-gradient(circle at top, #1c0a10 0, #111111 55%, #050505 100%);
}

.surface-card {
  background: linear-gradient(135deg, rgba(28, 10, 16, 0.95), rgba(10, 10, 10, 0.98));
  border: 1px solid rgba(220, 38, 38, 0.12);
  box-shadow: var(--shadow-md);
}

.surface-soft {
  background: radial-gradient(circle at top left, rgba(220, 38, 38, 0.12), rgba(0, 0, 0, 0.95));
}

/* Text utilities */
.text-muted {
  color: var(--color-text-muted);
}

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

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

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

/* ==========================================================================
   Components
   ========================================================================== */
/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition:
    background-color var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-fast);
}

.btn-primary {
  background: radial-gradient(circle at 10% 0, #f97373 0, #dc2626 40%, #7f1d1d 100%);
  color: #fdfbf7;
  box-shadow: 0 14px 40px rgba(220, 38, 38, 0.5);
}

.btn-primary:hover {
  background: radial-gradient(circle at 0 0, #fee2e2 0, #dc2626 45%, #7f1d1d 100%);
  transform: translateY(-1px);
  box-shadow: 0 20px 60px rgba(220, 38, 38, 0.65);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: rgba(249, 250, 251, 0.24);
  box-shadow: 0 0 0 1px rgba(249, 250, 251, 0.04);
}

.btn-outline:hover {
  background: rgba(249, 250, 251, 0.04);
  border-color: rgba(220, 38, 38, 0.7);
  color: var(--color-primary-soft);
}

.btn-ghost {
  background: rgba(17, 17, 17, 0.6);
  color: var(--color-text);
}

.btn-ghost:hover {
  background: rgba(28, 10, 16, 0.9);
  color: var(--color-primary-soft);
}

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

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

/* Inputs & form controls */
.input,
select,
textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(9, 9, 11, 0.85);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background-color var(--transition-base);
}

.input::placeholder,
textarea::placeholder {
  color: rgba(179, 179, 179, 0.7);
}

.input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  border-color: var(--color-primary-soft);
  box-shadow: 0 0 0 1px rgba(220, 38, 38, 0.3), 0 0 0 12px rgba(220, 38, 38, 0.12);
}

textarea {
  min-height: 8rem;
  resize: vertical;
}

label {
  display: inline-block;
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

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

.field-error {
  margin-top: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-danger);
}

/* Card */
.card {
  position: relative;
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at top left, rgba(220, 38, 38, 0.16) 0, rgba(17, 17, 17, 0.98) 55%, rgba(0, 0, 0, 1) 100%);
  border: 1px solid rgba(220, 38, 38, 0.18);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at top left, rgba(220, 38, 38, 0.2), transparent 55%);
  opacity: 0.35;
  pointer-events: none;
}

.card-inner {
  position: relative;
  z-index: 1;
}

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

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

.card-subtitle {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-primary-soft);
}

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

/* Hero layout helpers for static dramatic composition */
.hero {
  padding-block: var(--space-20);
}

.hero-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1.3fr);
  gap: var(--space-10);
  align-items: stretch;
}

@media (max-width: 960px) {
  .hero-shell {
    grid-template-columns: 1fr;
  }
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-kicker {
  font-size: var(--font-size-xs);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-primary-soft);
  margin-bottom: var(--space-3);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 4.6vw, 3.6rem);
  line-height: 1.05;
  margin-bottom: var(--space-4);
}

.hero-title span {
  color: var(--color-primary-soft);
}

.hero-lede {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-5);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-muted);
}

.hero-meta-item {
  padding-inline: 0.75rem;
  padding-block: 0.35rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(249, 250, 251, 0.12);
  background: rgba(15, 15, 15, 0.8);
}

.hero-visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: radial-gradient(circle at top, #3f1d25 0, #050505 60%, #000 100%);
  box-shadow: var(--shadow-lg);
}

.hero-visual::before {
  /* Soft vignette overlay to simulate theatrical lighting */
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 0, rgba(249, 250, 251, 0.12), transparent 45%),
    radial-gradient(circle at 80% 100%, rgba(220, 38, 38, 0.4), transparent 55%),
    radial-gradient(circle at 50% -20%, rgba(0, 0, 0, 0.8), transparent 70%);
  mix-blend-mode: screen;
  opacity: 0.9;
  pointer-events: none;
}

.hero-visual-img {
  position: absolute;
  inset: 0;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  filter: saturate(1.05) contrast(1.05) brightness(0.85);
  transform: scale(1.03);
}

.hero-visual-frame {
  position: absolute;
  inset: 1.25rem;
  border-radius: calc(var(--radius-xl) - 1.25rem);
  border: 1px solid rgba(249, 250, 251, 0.18);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.9);
  pointer-events: none;
}

.hero-badge {
  position: absolute;
  left: 1.75rem;
  bottom: 1.75rem;
  padding: 0.65rem 1.1rem;
  border-radius: var(--radius-full);
  background: rgba(9, 9, 11, 0.92);
  border: 1px solid rgba(249, 250, 251, 0.2);
  color: var(--color-text);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  backdrop-filter: blur(14px);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--color-primary-soft);
  box-shadow: 0 0 12px rgba(220, 38, 38, 0.9);
}

/* Navigation scaffolding */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(17, 17, 17, 0.96), rgba(17, 17, 17, 0.88), transparent);
  border-bottom: 1px solid rgba(220, 38, 38, 0.25);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.nav-logo-mark {
  width: 24px;
  height: 24px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 0, #f97373 0, #dc2626 45%, #450a0a 100%);
  box-shadow: 0 0 18px rgba(220, 38, 38, 0.85);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-link {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-muted);
  position: relative;
  padding-block: 0.25rem;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.35rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(220, 38, 38, 0.9), transparent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-base);
}

.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--color-neutral-50);
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-cta {
  margin-left: var(--space-6);
}

/* Basic responsive nav toggle scaffold (no JS behaviour here) */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0.4rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.9);
}

.nav-toggle-bar {
  width: 18px;
  height: 1px;
  border-radius: 999px;
  background: #e5e7eb;
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

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

/* List alignment inside sections */
.list-piped {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-muted);
}

.list-piped li::before {
  content: "•";
  margin-right: 0.5rem;
  color: rgba(220, 38, 38, 0.7);
}

/* ==========================================================================
   Global Syntax Code Injections (per instructions)
   ========================================================================== */
ul {
  list-style: none !important;
}

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