/* ========================================================================== 
   Variables
   ========================================================================== */
:root {
  /* Colors */
  --color-background: #050510; /* deep navy-black */
  --color-surface: #0c0c18; /* dark charcoal */
  --color-surface-alt: #111122;
  --color-border-subtle: rgba(255, 255, 255, 0.06);
  --color-border-strong: rgba(224, 188, 83, 0.7); /* soft gold/yellow accent */

  --color-text: #f7f7ff; /* clean white typography */
  --color-text-muted: #a0a3bd;
  --color-text-soft: #7f8199;

  --color-primary: #8b5cf6; /* elegant violet */
  --color-primary-soft: rgba(139, 92, 246, 0.16);
  --color-primary-strong: #a855f7;

  --color-accent: #f5c84c; /* warm yellow */
  --color-accent-soft: rgba(245, 200, 76, 0.12);

  --color-success: #16a34a;
  --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: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-heading: "Poppins", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", 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: 1.15;
  --line-height-snug: 1.3;
  --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: 0.125rem; /* 2px */
  --radius-sm: 0.25rem; /* 4px */
  --radius-md: 0.5rem; /* 8px */
  --radius-lg: 0.75rem; /* 12px */
  --radius-xl: 1rem; /* 16px */
  --radius-pill: 999px;

  /* Shadows - subtle, cinematic */
  --shadow-soft: 0 12px 30px rgba(0, 0, 0, 0.55);
  --shadow-strong: 0 22px 60px rgba(0, 0, 0, 0.9);
  --shadow-glow-violet: 0 0 24px rgba(139, 92, 246, 0.45);
  --shadow-glow-yellow: 0 0 24px rgba(245, 200, 76, 0.45);

  /* Transitions */
  --transition-fast: 150ms ease-out;
  --transition-base: 220ms ease-out;
  --transition-slow: 320ms ease-out;
}

/* ========================================================================== 
   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,
ol {
  margin: 0;
  padding: 0;
}

/* Per requirement */
ul {
  list-style: none !important;
}

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

img {
  height: auto;
}

input,
button,
textarea,
select {
  margin: 0;
  font: inherit;
  color: inherit;
}

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

textarea {
  resize: vertical;
}

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

body,
html {
  min-height: 100%;
}

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

main {
  min-height: 60vh;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: var(--line-height-tight);
  letter-spacing: 0.02em;
  color: var(--color-text);
}

h1 {
  font-size: clamp(var(--font-size-3xl), 3vw + 1rem, var(--font-size-5xl));
  margin-bottom: var(--space-4);
}

h2 {
  font-size: clamp(var(--font-size-2xl), 2.2vw + 0.6rem, var(--font-size-4xl));
  margin-bottom: var(--space-3);
}

h3 {
  font-size: clamp(var(--font-size-xl), 1.4vw + 0.4rem, var(--font-size-3xl));
  margin-bottom: var(--space-2);
}

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

p {
  margin-bottom: var(--space-3);
  color: var(--color-text-soft);
}

strong {
  font-weight: 600;
}

a {
  color: var(--color-primary-strong);
  text-decoration: none;
  transition: color var(--transition-base),
    text-shadow var(--transition-base);
}

a:hover {
  color: var(--color-accent);
  text-shadow: 0 0 12px rgba(245, 200, 76, 0.45);
}

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

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

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

::selection {
  background: rgba(139, 92, 246, 0.35);
  color: var(--color-text);
}

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

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

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

/* ========================================================================== 
   Layout 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);
  }
}

.section {
  padding-block: var(--space-10);
}

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

.section--hero {
  position: relative;
  padding-block: var(--space-16);
}

@media (min-width: 768px) {
  .section--hero {
    padding-block: var(--space-20);
  }
}

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

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

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

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

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

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

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

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

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

.justify-end {
  justify-content: flex-end;
}

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

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

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

.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(1, minmax(0, 1fr));
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

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

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

.mx-auto {
  margin-inline: auto;
}

.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-4 {
  padding-block: var(--space-4);
}

.py-6 {
  padding-block: var(--space-6);
}

.p-4 {
  padding: var(--space-4);
}

.p-6 {
  padding: 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;
}

/* ========================================================================== 
   Components - Navigation / Header basics
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: linear-gradient(
      to bottom,
      rgba(5, 5, 16, 0.96),
      rgba(5, 5, 16, 0.9)
    );
  border-bottom: 1px solid var(--color-border-subtle);
  backdrop-filter: blur(16px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-block: var(--space-3);
}

.site-logo {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: var(--font-size-sm);
}

.site-logo span {
  color: var(--color-accent);
}

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

.nav__list {
  display: none;
}

.nav__link {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-text-muted);
  padding-block: 0.2rem;
  position: relative;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.15rem;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width var(--transition-base);
}

.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%;
}

/* Mobile burger toggle */
.nav-toggle {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background: radial-gradient(circle at top left, #1f1638, #050510);
  cursor: pointer;
  transition: background var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);

  /* Per requirement */
  flex-direction: column;
}

.nav-toggle span {
  display: block;
  width: 1.2rem;
  height: 2px;
  border-radius: 999px;
  background: var(--color-text);
  transition: transform var(--transition-base),
    opacity var(--transition-base),
    width var(--transition-base);
}

.nav-toggle span + span {
  margin-top: 4px;
}

.nav-toggle--active {
  box-shadow: var(--shadow-glow-violet);
  border-color: var(--color-primary);
}

.nav-toggle--active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle--active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle--active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.nav--open .nav__list {
  display: flex;
}

@media (min-width: 960px) {
  .nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-4);
  }

  .nav-toggle {
    display: none;
  }
}

/* ========================================================================== 
   Components - Hero & Overlay Panels
   ========================================================================== */
.hero {
  position: relative;
  color: var(--color-text);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero__bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  /* actual background-image set per-page inline or via class */
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at top left, rgba(139, 92, 246, 0.32), transparent 55%),
    radial-gradient(circle at bottom right, rgba(245, 200, 76, 0.24), transparent 55%),
    linear-gradient(to bottom, rgba(5, 5, 16, 0.9), rgba(5, 5, 16, 0.98));
}

.hero__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  max-width: 720px;
  gap: var(--space-4);
}

.hero__panel {
  background: radial-gradient(circle at top left, #1b1333, #050510);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  border: 1px solid rgba(139, 92, 246, 0.6);
  box-shadow: var(--shadow-soft);
  position: relative;
}

.hero__panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid rgba(245, 200, 76, 0.22);
  opacity: 0.7;
  pointer-events: none;
}

.hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  background: rgba(5, 5, 16, 0.8);
  border: 1px solid rgba(245, 200, 76, 0.45);
  font-size: var(--font-size-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag {
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(139, 92, 246, 0.7);
  background: rgba(15, 23, 42, 0.85);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-soft);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-3);
}

/* ========================================================================== 
   Components - Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding-inline: var(--space-4);
  padding-block: 0.65rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-fast);
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #050510;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.8);
}

.btn--primary:hover {
  box-shadow: var(--shadow-glow-violet);
  transform: translateY(-1px);
}

.btn--secondary {
  background: rgba(5, 5, 16, 0.9);
  color: var(--color-text);
  border-color: rgba(139, 92, 246, 0.6);
}

.btn--secondary:hover {
  background: rgba(15, 23, 42, 0.98);
  box-shadow: var(--shadow-soft);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-soft);
  border-color: rgba(148, 163, 184, 0.5);
}

.btn--ghost:hover {
  color: var(--color-text);
  border-color: rgba(245, 200, 76, 0.8);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.5;
  box-shadow: none;
}

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

/* ========================================================================== 
   Components - Forms & Inputs
   ========================================================================== */
.form {
  display: grid;
  gap: var(--space-4);
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

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

.input,
.textarea,
.select {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: rgba(5, 5, 16, 0.9);
  color: var(--color-text);
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.9);
  transition: border-color var(--transition-base),
    box-shadow var(--transition-base),
    background var(--transition-base);
}

.input::placeholder,
.textarea::placeholder {
  color: rgba(148, 163, 184, 0.7);
}

.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), var(--shadow-glow-violet);
  background: rgba(5, 5, 16, 0.98);
}

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

.form__hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.form__error {
  font-size: var(--font-size-xs);
  color: var(--color-danger);
}

/* ========================================================================== 
   Components - Cards
   ========================================================================== */
.card {
  position: relative;
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  background: radial-gradient(circle at top left, #1b1333, #050510);
  border: 1px solid rgba(139, 92, 246, 0.4);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid rgba(148, 163, 184, 0.18);
  opacity: 0.7;
  pointer-events: none;
}

.card--subtle {
  background: #0b0b17;
  border-color: rgba(148, 163, 184, 0.32);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.7);
}

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

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

.card__meta {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

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

.card--hoverable {
  cursor: pointer;
  transition: transform var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}

.card--hoverable:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 200, 76, 0.7);
  box-shadow: var(--shadow-strong);
}

/* ========================================================================== 
   Components - Badges / Chips
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  border: 1px solid rgba(148, 163, 184, 0.7);
  color: var(--color-text-muted);
}

.badge--primary {
  border-color: rgba(139, 92, 246, 0.9);
  background: rgba(15, 23, 42, 0.95);
  color: var(--color-text);
}

.badge--accent {
  border-color: rgba(245, 200, 76, 0.9);
  background: rgba(23, 23, 23, 0.98);
  color: var(--color-accent);
}

/* ========================================================================== 
   Components - FAQ / Accordion (basic)
   ========================================================================== */
.faq-item {
  border-radius: var(--radius-md);
  border: 1px solid rgba(148, 163, 184, 0.35);
  background: rgba(5, 5, 16, 0.96);
  padding: var(--space-4);
}

.faq-item + .faq-item {
  margin-top: var(--space-3);
}

.faq-item__question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
}

.faq-item__question-text {
  font-weight: 500;
  font-size: var(--font-size-base);
}

.faq-item__icon {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
}

.faq-item__answer {
  margin-top: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-soft);
}

/* ========================================================================== 
   Components - Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--color-border-subtle);
  background: radial-gradient(circle at top center, #15122a, #050510);
  padding-block: var(--space-8);
  color: var(--color-text-soft);
}

.site-footer__bottom {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(30, 64, 175, 0.6);
  font-size: var(--font-size-xs);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
  align-items: center;
}

/* ========================================================================== 
   Utilities - Thematic & Status
   ========================================================================== */
.text-muted {
  color: var(--color-text-muted);
}

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

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

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

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

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

.border-subtle {
  border: 1px solid var(--color-border-subtle);
}

.border-primary {
  border: 1px solid rgba(139, 92, 246, 0.7);
}

.border-accent {
  border: 1px solid rgba(245, 200, 76, 0.8);
}

.shadow-soft {
  box-shadow: var(--shadow-soft);
}

.shadow-strong {
  box-shadow: var(--shadow-strong);
}

.shadow-glow-violet {
  box-shadow: var(--shadow-glow-violet);
}

.shadow-glow-yellow {
  box-shadow: var(--shadow-glow-yellow);
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.chip {
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-pill);
  border: 1px dashed rgba(148, 163, 184, 0.7);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* ========================================================================== 
   Utilities - Responsive helpers
   ========================================================================== */
@media (min-width: 768px) {
  .md\:flex-row {
    flex-direction: row;
  }

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

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

  .md\:text-left {
    text-align: left;
  }
}

@media (min-width: 1024px) {
  .lg\:flex-row {
    flex-direction: row;
  }
}