/* ============================================================
   Design Tokens
   ============================================================ */
:root {
  /* Colors */
  --color-bg-base:       #1a1a1a;
  --color-bg-surface:    #222;
  --color-bg-elevated:   #333;
  --color-bg-input:      #2a2a2a;

  --color-text-primary:  #f0f0f0;
  --color-text-muted:    #ccc;

  --color-accent:        #007bff;
  --color-accent-hover:  color-mix(in srgb, var(--color-accent) 75%, black);
  --color-success:       #28a745;

  --color-border:        #444;
  --color-border-subtle: color-mix(in srgb, var(--color-border) 50%, transparent);

  /* Typography */
  --font-sans: system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --font-size-sm:   0.875rem;
  --font-size-base: 1rem;
  --font-size-lg:   1.125rem;
  --font-size-xl:   clamp(1.5rem, 4vw, 2.5rem);
  --font-size-2xl:  clamp(2rem, 6vw, 4rem);

  /* Spacing */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: clamp(2.5rem, 8vw, 6rem);

  /* Shape */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-normal: 250ms ease;

  /* Layout */
  --container-max: 1200px;
  --container-pad: clamp(1rem, 5vw, 2rem);
}

/* ============================================================
   Reset & Base
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: 1.6;
  background-color: var(--color-bg-base);
  color: var(--color-text-primary);
  -webkit-font-smoothing: antialiased;
}

/* ============================================================
   Layout
   ============================================================ */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ============================================================
   Header
   ============================================================ */
header {
  background-color: var(--color-bg-elevated);
  border-block-end: 1px solid var(--color-border);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: var(--space-sm);
  gap: var(--space-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.5rem;
  font-weight: 700;
}

.logo img {
  block-size: 30px;
}

/* ============================================================
   Navigation
   ============================================================ */
nav ul {
  list-style: none;
  display: flex;
  gap: var(--space-xs);
}

nav ul li a {
  color: var(--color-text-primary);
  text-decoration: none;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast),
              background-color var(--transition-fast);
}

nav ul li a:hover {
  color: var(--color-accent);
  background-color: color-mix(in srgb, var(--color-accent) 10%, transparent);
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  border: none;
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--transition-fast),
              transform var(--transition-fast),
              box-shadow var(--transition-fast);
}

.btn:active {
  transform: scale(0.98);
}

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

.btn-primary:hover {
  background-color: var(--color-accent-hover);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-accent);
}

.btn-secondary:hover {
  background-color: var(--color-accent);
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  background: url('hero-new.png') no-repeat center center / cover;
  text-align: center;
  padding-block: var(--space-3xl);
  padding-inline: var(--container-pad);
  color: var(--color-text-primary);
}

.hero h1 {
  font-size: var(--font-size-2xl);
  margin-block-end: var(--space-md);
}

.hero p {
  font-size: var(--font-size-lg);
  max-inline-size: 800px;
  margin-inline: auto;
  margin-block-end: var(--space-xl);
  color: var(--color-text-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
}

.stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2xl);
  margin-block-start: var(--space-2xl);
}

.stats div {
  text-align: center;
}

.stats span {
  display: block;
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-success);
}

.stats p {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-block-start: var(--space-xs);
}

/* ============================================================
   Hero (small variant)
   ============================================================ */
.hero-small {
  background-color: var(--color-bg-surface);
  text-align: center;
  padding-block: var(--space-3xl);
  padding-inline: var(--container-pad);
  border-block-end: 1px solid var(--color-border);
}

.hero-small h1 {
  font-size: var(--font-size-xl);
  color: var(--color-accent);
  margin-block-end: var(--space-sm);
}

.hero-small p {
  font-size: var(--font-size-lg);
  max-inline-size: 700px;
  margin-inline: auto;
  color: var(--color-text-muted);
}

/* ============================================================
   Features / How It Works / Services
   ============================================================ */
.features,
.how-it-works,
.services-list {
  padding-block: var(--space-3xl);
  background-color: var(--color-bg-surface);
  text-align: center;
}

.features h2,
.how-it-works h2,
.services-list h2 {
  font-size: var(--font-size-xl);
  color: var(--color-accent);
  margin-block-end: var(--space-2xl);
}

.feature-grid,
.steps-grid,
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr));
  gap: var(--space-lg);
}

.feature-item,
.step-item,
.service-item {
  background-color: var(--color-bg-elevated);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  text-align: start;
  border: 1px solid var(--color-border-subtle);
  transition: transform var(--transition-normal),
              border-color var(--transition-normal);
}

.feature-item:hover,
.step-item:hover,
.service-item:hover {
  transform: translateY(-4px);
  border-color: var(--color-border);
}

.feature-item h3,
.step-item h3,
.service-item h3 {
  color: var(--color-success);
  margin-block-end: var(--space-sm);
}

.step-item span {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  display: block;
  margin-block-end: var(--space-sm);
}

/* ============================================================
   Footer
   ============================================================ */
footer {
  background-color: var(--color-bg-elevated);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  padding-block: var(--space-2xl) var(--space-md);
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr));
  gap: var(--space-xl);
  margin-block-end: var(--space-xl);
}

.footer-logo img {
  block-size: 40px;
  margin-block-end: var(--space-sm);
}

.footer-logo p {
  max-inline-size: 300px;
}

.footer-links h4 {
  color: var(--color-text-primary);
  margin-block-end: var(--space-sm);
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-links ul li a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links ul li a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  text-align: center;
  border-block-start: 1px solid var(--color-border);
  padding-block-start: var(--space-md);
}

/* ============================================================
   Auth Forms
   ============================================================ */
.auth-form {
  display: grid;
  place-items: center;
  min-block-size: calc(100dvh - 180px);
  padding-block: var(--space-2xl);
  background-color: var(--color-bg-surface);
}

.auth-form .container {
  width: min(500px, 100%);
  background-color: var(--color-bg-elevated);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 32px rgba(0 0 0 / 0.4);
}

.auth-form h2 {
  text-align: center;
  color: var(--color-accent);
  font-size: 1.75rem;
  margin-block-end: var(--space-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-block-end: var(--space-md);
}

.form-group label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-primary);
}

.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="text"] {
  width: 100%;
  padding: 0.75rem var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg-input);
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast);
}

.form-group input::placeholder {
  color: var(--color-text-muted);
}

.form-group input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent) 25%, transparent);
}

.auth-form .btn-primary {
  width: 100%;
  justify-content: center;
  padding-block: 0.75rem;
  font-size: var(--font-size-lg);
  margin-block-start: var(--space-sm);
}

.auth-form p {
  text-align: center;
  margin-block-start: var(--space-md);
  color: var(--color-text-muted);
}

.auth-form p a {
  color: var(--color-success);
  text-decoration: none;
}

.auth-form p a:hover {
  text-decoration: underline;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
  header .container {
    flex-direction: column;
  }

  nav ul {
    flex-wrap: wrap;
    justify-content: center;
  }

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

  .footer-logo p {
    margin-inline: auto;
  }
}