/* Art direction: AI dev tools studio — dark, techy, clean
   Palette: Deep navy/charcoal base, cyan-to-magenta accent gradient from logo
   Typography: General Sans (body) + Satoshi (display) — modern, technical
   Density: spacious — simple credibility page, let it breathe */

/* ========================================
   DESIGN TOKENS
   ======================================== */

:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Fonts */
  --font-display: 'Satoshi', 'Inter', sans-serif;
  --font-body: 'General Sans', 'Inter', sans-serif;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;
}

/* Dark theme (default for this site) */
:root, [data-theme="dark"] {
  /* Surfaces — deep charcoal/navy */
  --color-bg:             #0e0e14;
  --color-surface:        #14141c;
  --color-surface-2:      #1a1a24;
  --color-surface-offset: #16161e;
  --color-surface-offset-2: #1e1e28;
  --color-surface-dynamic: #24242e;
  --color-divider:        #2a2a36;
  --color-border:         #333340;

  /* Text */
  --color-text:           #e0dfe6;
  --color-text-muted:     #8e8d9a;
  --color-text-faint:     #5c5b6a;
  --color-text-inverse:   #0e0e14;

  /* Primary — cyan from logo */
  --color-primary:        #4dd4e6;
  --color-primary-hover:  #3abecf;
  --color-primary-active: #2aa5b5;
  --color-primary-highlight: #1c3a40;

  /* Accent — magenta from logo */
  --color-accent:         #c850c0;
  --color-accent-hover:   #b340ad;
  --color-accent-active:  #9a3196;

  /* Purple midpoint from logo */
  --color-purple:         #8b5cf6;

  /* Shadows */
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.4);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.5);
}

/* Light theme */
[data-theme="light"] {
  --color-bg:             #f4f3f0;
  --color-surface:        #ffffff;
  --color-surface-2:      #f9f8f6;
  --color-surface-offset: #eeedea;
  --color-surface-offset-2: #e6e5e2;
  --color-surface-dynamic: #dddcd9;
  --color-divider:        #d4d3d0;
  --color-border:         #c4c3c0;

  --color-text:           #1a1a24;
  --color-text-muted:     #5c5b6a;
  --color-text-faint:     #8e8d9a;
  --color-text-inverse:   #f4f3f0;

  --color-primary:        #0891a8;
  --color-primary-hover:  #067a8f;
  --color-primary-active: #056270;
  --color-primary-highlight: #d0edf2;

  --color-accent:         #a83ca0;
  --color-accent-hover:   #8e2e88;
  --color-accent-active:  #74236f;

  --color-purple:         #6d3fd4;

  --shadow-sm: 0 1px 2px oklch(0.2 0.01 80 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.01 80 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.2 0.01 80 / 0.12);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --color-bg:             #f4f3f0;
    --color-surface:        #ffffff;
    --color-surface-2:      #f9f8f6;
    --color-surface-offset: #eeedea;
    --color-surface-offset-2: #e6e5e2;
    --color-surface-dynamic: #dddcd9;
    --color-divider:        #d4d3d0;
    --color-border:         #c4c3c0;
    --color-text:           #1a1a24;
    --color-text-muted:     #5c5b6a;
    --color-text-faint:     #8e8d9a;
    --color-text-inverse:   #f4f3f0;
    --color-primary:        #0891a8;
    --color-primary-hover:  #067a8f;
    --color-primary-active: #056270;
    --color-primary-highlight: #d0edf2;
    --color-accent:         #a83ca0;
    --color-accent-hover:   #8e2e88;
    --color-accent-active:  #74236f;
    --color-purple:         #6d3fd4;
    --shadow-sm: 0 1px 2px oklch(0.2 0.01 80 / 0.06);
    --shadow-md: 0 4px 12px oklch(0.2 0.01 80 / 0.08);
    --shadow-lg: 0 12px 32px oklch(0.2 0.01 80 / 0.12);
  }
}

/* ========================================
   GLOBAL STYLES
   ======================================== */

body {
  display: flex;
  flex-direction: column;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}
a:hover {
  color: var(--color-primary-hover);
}

/* ========================================
   HEADER / NAV
   ======================================== */

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: oklch(from var(--color-bg) l c h / 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.06);
  transition: box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.header--scrolled {
  box-shadow: var(--shadow-sm);
}

.header__inner {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}

.header__logo img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
}

.header__logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
}

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

.header__nav a {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-interactive);
  position: relative;
}

.header__nav a:hover,
.header__nav a.active {
  color: var(--color-text);
}

.header__nav a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
}

.theme-toggle {
  color: var(--color-text-muted);
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: color var(--transition-interactive),
              background var(--transition-interactive);
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface-dynamic);
}

/* Mobile nav */
.mobile-menu-btn {
  display: none;
  color: var(--color-text-muted);
  padding: var(--space-2);
}

@media (max-width: 640px) {
  .mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .header__nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-4) var(--space-6);
    gap: var(--space-4);
  }

  .header__nav.open {
    display: flex;
  }

  .theme-toggle-mobile {
    display: flex;
  }
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-16) var(--space-6);
  position: relative;
  overflow: hidden;
}

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

.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
}

[data-theme="light"] .hero__glow {
  opacity: 0.08;
}

.hero__glow--1 {
  width: 600px;
  height: 600px;
  background: var(--color-primary);
  top: -200px;
  right: -100px;
}

.hero__glow--2 {
  width: 500px;
  height: 500px;
  background: var(--color-accent);
  bottom: -200px;
  left: -100px;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: var(--content-narrow);
}

.hero__logo {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--space-8);
  border-radius: var(--radius-xl);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.hero__tagline {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 48ch;
  margin: 0 auto var(--space-8);
  line-height: 1.7;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: background var(--transition-interactive),
              transform var(--transition-interactive),
              box-shadow var(--transition-interactive);
}

.hero__cta:hover {
  background: var(--color-primary-hover);
  color: var(--color-text-inverse);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.hero__cta:active {
  transform: translateY(0);
}

.hero__ctas {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

.hero__cta--ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid oklch(from var(--color-text) l c h / 0.15);
}

.hero__cta--ghost:hover {
  background: oklch(from var(--color-text) l c h / 0.06);
  color: var(--color-text);
  border-color: oklch(from var(--color-text) l c h / 0.25);
}

/* ========================================
   SECTIONS
   ======================================== */

.section {
  padding: clamp(var(--space-12), 8vw, var(--space-24)) var(--space-6);
}

.section__inner {
  max-width: var(--content-default);
  margin-inline: auto;
}

.section__label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-6);
  letter-spacing: -0.01em;
}

.section__body {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.7;
  max-width: 60ch;
}

.section__body p + p {
  margin-top: var(--space-4);
}

/* Alternating backgrounds */
.section--alt {
  background: var(--color-surface);
}

/* ========================================
   ABOUT SECTION — VALUES
   ======================================== */

.values-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

@media (min-width: 640px) {
  .values-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.value-card {
  padding: var(--space-6);
  background: var(--color-surface-2);
  border: 1px solid oklch(from var(--color-text) l c h / 0.06);
  border-radius: var(--radius-lg);
}

.value-card__icon {
  width: 36px;
  height: 36px;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.value-card__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.value-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ========================================
   FORMS (shared)
   ======================================== */

.form-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: var(--space-8);
  background: var(--color-surface-2);
  border: 1px solid oklch(from var(--color-text) l c h / 0.06);
  border-radius: var(--radius-lg);
  max-width: 720px;
}

.form-card--compact {
  max-width: 480px;
  padding: var(--space-6);
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-row--2col {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 540px) {
  .form-row--2col {
    grid-template-columns: 1fr 1fr;
  }
}

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

.form-label {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}

.form-optional {
  font-weight: 400;
  color: var(--color-text-faint);
}

.form-input,
.form-select,
.form-textarea {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid oklch(from var(--color-text) l c h / 0.12);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  transition: border-color var(--transition-interactive),
              box-shadow var(--transition-interactive);
  width: 100%;
}

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

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px oklch(from var(--color-primary) l c h / 0.15);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238e8d9a' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-right: var(--space-10);
  cursor: pointer;
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

/* Validation error state */
.form-group--error .form-input,
.form-group--error .form-select,
.form-group--error .form-textarea {
  border-color: #e55c6c;
  box-shadow: 0 0 0 3px oklch(from #e55c6c l c h / 0.12);
}

.form-group--error .form-label {
  color: #e55c6c;
}

/* Disabled state */
.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Submit buttons */
.form-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  cursor: pointer;
  border: none;
  transition: background var(--transition-interactive),
              transform var(--transition-interactive),
              box-shadow var(--transition-interactive),
              opacity var(--transition-interactive);
  align-self: flex-start;
  margin-top: var(--space-2);
}

.form-submit:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.form-submit:active {
  transform: translateY(0);
}

.form-submit:disabled {
  opacity: 0.5;
  pointer-events: none;
}

.form-submit--secondary {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.form-submit--secondary:hover {
  background: oklch(from var(--color-primary) l c h / 0.1);
  color: var(--color-primary);
}

/* Success state */
.form-success {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: oklch(from #4ade80 l c h / 0.1);
  border: 1px solid oklch(from #4ade80 l c h / 0.2);
  border-radius: var(--radius-md);
  color: #4ade80;
  font-size: var(--text-sm);
  line-height: 1.5;
  margin-top: var(--space-2);
}

.form-success[hidden] {
  display: none;
}

.form-success svg {
  flex-shrink: 0;
  margin-top: 1px;
}

/* ========================================
   CONTACT SECTION
   ======================================== */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: start;
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr auto;
    gap: var(--space-12);
  }
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.contact-info__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-text);
}

.contact-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: color var(--transition-interactive);
}

.contact-card__link:hover {
  color: var(--color-primary);
}

.contact-card__link svg {
  color: var(--color-text-muted);
  flex-shrink: 0;
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
  margin-top: auto;
  padding: var(--space-8) var(--space-6);
  border-top: 1px solid oklch(from var(--color-text) l c h / 0.06);
}

.footer__inner {
  max-width: var(--content-default);
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  text-align: center;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}

.footer__brand img {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
}

.footer__copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.footer__copy a {
  color: var(--color-text-faint);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer__copy a:hover {
  color: var(--color-text-muted);
}

/* ========================================
   SCROLL ANIMATIONS
   ======================================== */

.fade-in {
  opacity: 1;
}

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 100%;
  }
}

@keyframes reveal-fade {
  to { opacity: 1; }
}

/* ========================================
   CHAT WIDGET
   ======================================== */

.chat-container {
  background: oklch(from var(--color-surface) l c h / 0.6);
  border: 1px solid oklch(from var(--color-text) l c h / 0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.chat-messages {
  padding: var(--space-6);
  min-height: 320px;
  max-height: 480px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  scroll-behavior: smooth;
}

.chat-msg {
  display: flex;
  max-width: 85%;
}

.chat-msg--user {
  align-self: flex-end;
}

.chat-msg--assistant {
  align-self: flex-start;
}

.chat-msg__bubble {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  line-height: 1.6;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.chat-msg--user .chat-msg__bubble {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-bottom-right-radius: var(--radius-sm);
}

.chat-msg--assistant .chat-msg__bubble {
  background: oklch(from var(--color-text) l c h / 0.08);
  color: var(--color-text);
  border-bottom-left-radius: var(--radius-sm);
}

/* Typing indicator */
.typing-dots {
  display: inline-flex;
  gap: 4px;
  align-items: center;
  height: 20px;
}

.typing-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-text-muted);
  animation: typingBounce 1.4s ease-in-out infinite;
}

.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-4px); opacity: 1; }
}

/* Chat input */
.chat-input {
  display: flex;
  align-items: flex-end;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid oklch(from var(--color-text) l c h / 0.08);
  background: oklch(from var(--color-surface) l c h / 0.3);
}

.chat-input__field {
  flex: 1;
  background: none;
  border: none;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  line-height: 1.5;
  padding: var(--space-2) 0;
  resize: none;
  outline: none;
  max-height: 120px;
}

.chat-input__field::placeholder {
  color: var(--color-text-muted);
}

.chat-input__btn {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-interactive), transform var(--transition-interactive);
}

.chat-input__btn:hover {
  background: oklch(from var(--color-primary) calc(l * 1.1) c h);
  transform: scale(1.05);
}

.chat-input__btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ========================================
   CONTACT FORM
   ======================================== */

.contact-form-wrapper {
  margin-top: var(--space-10);
}

.contact-form-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.contact-form-divider::before,
.contact-form-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-divider);
}

.contact-form-divider span {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  white-space: nowrap;
  text-transform: lowercase;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  max-width: 600px;
  margin: 0 auto;
}

.contact-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

@media (max-width: 480px) {
  .contact-form__row {
    grid-template-columns: 1fr;
  }
}

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

.contact-form__field label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

.contact-form__field input,
.contact-form__field textarea {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  color: var(--color-text);
  font-family: var(--font-body);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form__field input::placeholder,
.contact-form__field textarea::placeholder {
  color: var(--color-text-faint);
}

.contact-form__field input:focus,
.contact-form__field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-highlight);
}

.contact-form__field textarea {
  resize: vertical;
  min-height: 100px;
}

.contact-form__select {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  color: var(--color-text);
  font-family: var(--font-body);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238e8d9a' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: var(--space-8);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form__select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-highlight);
}

.contact-form__select option {
  background: var(--color-surface);
  color: var(--color-text);
}

.contact-form__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  align-self: flex-start;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-weight: 600;
  font-size: var(--text-base);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.contact-form__btn:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.contact-form__btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.contact-form__status {
  font-size: var(--text-sm);
  min-height: 1.4em;
}

.contact-form__status--success {
  color: #4ade80;
}

.contact-form__status--error {
  color: #f87171;
}

/* ========================================
   AI TOOLS GRID
   ======================================== */

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-10);
}

.tool-card {
  background: oklch(from var(--color-surface) l c h / 0.6);
  border: 1px solid oklch(from var(--color-text) l c h / 0.08);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color var(--transition-interactive), transform var(--transition-interactive);
}

.tool-card:hover {
  border-color: oklch(from var(--color-primary) l c h / 0.35);
  transform: translateY(-2px);
}

.tool-card__icon {
  width: 32px;
  height: 32px;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.tool-card__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.tool-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.tools-cta {
  text-align: center;
  margin-top: var(--space-12);
  padding-top: var(--space-10);
  border-top: 1px solid oklch(from var(--color-text) l c h / 0.06);
}

.tools-cta__text {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto var(--space-8);
  line-height: 1.6;
}

/* ========================================
   GRADIENT TEXT UTILITY
   ======================================== */

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-purple), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ========================================
   DIVIDER
   ======================================== */

.divider {
  border: none;
  height: 1px;
  background: oklch(from var(--color-text) l c h / 0.06);
  margin: 0;
}