/* ============================================================
   Nimblor.com — Stylesheet
   Design system: docs/design_system.md
   ============================================================ */

/* ------------------------------------------------------------
   1. Custom Properties
   ------------------------------------------------------------ */
:root {
  /* Brand */
  --color-brand-purple:     #B07FED;
  --color-brand-teal:       #96E7EF;
  --color-brand-dark-teal:  #226276;
  --color-brand-mid-teal:   #A0DFEC;

  /* UI */
  --color-text-primary:     #1C1C1E;
  --color-text-secondary:   #5A6B7A;
  --color-text-tertiary:    #8A9BA8;
  --color-bg:               #FFFFFF;
  --color-bg-subtle:        #F7F9FA;
  --color-border:           #E4ECF0;
  --color-border-strong:    #C8D8DF;

  /* Gradient */
  --gradient-brand: linear-gradient(90deg, var(--color-brand-purple) 0%, var(--color-brand-teal) 100%);

  /* Spacing */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;
  --space-8: 128px;

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --text-hero:    clamp(40px, 7vw, 64px);
  --text-h2:      clamp(28px, 4vw, 38px);
  --text-h3:      clamp(18px, 2.5vw, 22px);
  --text-lead:    clamp(17px, 2vw, 20px);
  --text-body:    16px;
  --text-small:   13px;

  /* Layout */
  --container-max: 1100px;
  --container-text: 680px;
  --container-padding: clamp(20px, 5vw, 40px);

  /* Radius */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-pill: 100px;

  /* Shadow */
  --shadow-card: 0 1px 3px rgba(34, 98, 118, 0.06), 0 4px 16px rgba(34, 98, 118, 0.05);

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-base:   200ms ease;
  --transition-enter:  400ms cubic-bezier(0.16, 1, 0.3, 1);
}


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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

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

/* Focus visible — only show for keyboard navigation */
:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-brand-purple);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}


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

.section {
  padding-block: var(--space-7);
}

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

.section__inner--narrow {
  max-width: var(--container-text);
}

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

.section__heading {
  font-size: var(--text-h2);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  line-height: 1.2;
}

.section__lead {
  font-size: var(--text-lead);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-5);
}

/* Responsive line break — only visible on wider screens */
.break-desktop {
  display: none;
}

@media (min-width: 640px) {
  .break-desktop {
    display: block;
  }
}


/* ------------------------------------------------------------
   4. Accent Line
   ------------------------------------------------------------ */
.accent-line {
  width: 48px;
  height: 3px;
  background: var(--gradient-brand);
  border-radius: 2px;
}


/* ------------------------------------------------------------
   5. Navigation
   ------------------------------------------------------------ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base);
}

.nav--scrolled {
  border-bottom-color: var(--color-border);
}

.nav__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
}

.nav__logo-svg {
  height: 28px;
  width: auto;
}

.nav__contact {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-brand-dark-teal);
  transition: opacity var(--transition-fast);
}

.nav__contact:hover {
  opacity: 0.7;
}


/* ------------------------------------------------------------
   6. Hero
   ------------------------------------------------------------ */
.hero {
  padding-top: clamp(64px, 12vw, 128px);
  padding-bottom: clamp(64px, 10vw, 112px);
}

.hero__content {
  max-width: 720px;
}

.hero__eyebrow {
  font-size: var(--text-small);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-brand-dark-teal);
  margin-bottom: var(--space-3);
}

.hero__heading {
  font-size: var(--text-hero);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

.hero__body {
  font-size: var(--text-lead);
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 640px;
}


/* ------------------------------------------------------------
   7. Approach Section
   ------------------------------------------------------------ */
.approach {
  background-color: var(--color-bg-subtle);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.prose p {
  color: var(--color-text-secondary);
  line-height: 1.75;
  max-width: var(--container-text);
}

.prose p + p {
  margin-top: var(--space-3);
}

.prose h2 {
  font-size: var(--text-h3);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-top: var(--space-5);
  margin-bottom: var(--space-2);
  line-height: 1.3;
}

.prose ul {
  list-style: disc;
  padding-left: 1.5em;
  margin-top: var(--space-2);
  margin-bottom: var(--space-2);
}

.prose ul li {
  color: var(--color-text-secondary);
  line-height: 1.75;
}

.prose ul li + li {
  margin-top: 4px;
}

.prose a {
  color: var(--color-brand-dark-teal);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.prose a:hover {
  opacity: 0.7;
}

.form-notice {
  margin-top: var(--space-2);
  font-size: var(--text-small);
  color: var(--color-text-tertiary);
}

.form-notice a {
  color: var(--color-brand-dark-teal);
  text-decoration: underline;
  text-underline-offset: 2px;
}


/* ------------------------------------------------------------
   8. Portfolio / Brand Card
   ------------------------------------------------------------ */
.portfolio {
  padding-bottom: clamp(64px, 10vw, 112px);
}

.brand-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  max-width: 860px;
}

.brand-card__header {
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg-subtle);
}

.brand-card__name-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.brand-card__name {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-brand-dark-teal);
}

.brand-card__badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 3px 10px;
  line-height: 1.5;
}

.brand-card__category {
  font-size: 13px;
  color: var(--color-text-tertiary);
  font-weight: 500;
}

.brand-card__body {
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.brand-card__body p {
  color: var(--color-text-secondary);
  line-height: 1.75;
}

.brand-card__body p + p {
  margin-top: var(--space-2);
}

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

.brand-card__cta-heading {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 6px;
}

.brand-card__cta-sub {
  font-size: 14px;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-3);
}


/* ------------------------------------------------------------
   9. Interest Form
   ------------------------------------------------------------ */
.interest-form__row {
  display: flex;
  gap: var(--space-2);
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: var(--space-2);
}

.field {
  flex: 1;
  min-width: 200px;
}

.field__label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.field__input {
  width: 100%;
  padding: 11px 15px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  font-size: 15px;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  -webkit-appearance: none;
  appearance: none;
}

.field__input::placeholder {
  color: var(--color-text-tertiary);
}

.field__input:focus {
  border-color: var(--color-brand-dark-teal);
  box-shadow: 0 0 0 3px rgba(34, 98, 118, 0.12);
  outline: none;
}

.field__input--error {
  border-color: #C0392B;
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.1);
}

/* Turnstile widget spacing */
.cf-turnstile {
  margin-top: var(--space-2);
}

/* Form messages */
.form-message {
  margin-top: var(--space-2);
  font-size: 14px;
  line-height: 1.5;
  padding: 10px 14px;
  border-radius: var(--radius-md);
}

.form-message--success {
  background-color: rgba(34, 98, 118, 0.07);
  color: var(--color-brand-dark-teal);
  border: 1px solid rgba(34, 98, 118, 0.18);
}

.form-message--error {
  background-color: rgba(192, 57, 43, 0.06);
  color: #922B21;
  border: 1px solid rgba(192, 57, 43, 0.18);
}

.form-message--error a {
  color: #922B21;
  text-decoration: underline;
}

[hidden] {
  display: none !important;
}


/* ------------------------------------------------------------
   10. Buttons
   ------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: 11px 22px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  transition: background-color var(--transition-fast), opacity var(--transition-fast);
  white-space: nowrap;
  position: relative;
}

.btn--primary {
  background-color: var(--color-brand-dark-teal);
  color: #FFFFFF;
  border: 1px solid transparent;
}

.btn--primary:hover:not(:disabled) {
  background-color: #1A4F5F;
}

.btn--primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Loading spinner */
.btn__spinner {
  display: none;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #FFFFFF;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.btn--loading .btn__text {
  opacity: 0.7;
}

.btn--loading .btn__spinner {
  display: block;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}


/* ------------------------------------------------------------
   11. Footer
   ------------------------------------------------------------ */
.footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-5);
  background-color: var(--color-bg-subtle);
}

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

.footer__logo-svg {
  height: 22px;
  width: auto;
}

.footer__right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.footer__copy {
  font-size: var(--text-small);
  color: var(--color-text-tertiary);
}

.footer__email {
  font-size: var(--text-small);
  color: var(--color-brand-dark-teal);
  font-weight: 500;
  transition: opacity var(--transition-fast);
}

.footer__email:hover {
  opacity: 0.7;
}


/* ------------------------------------------------------------
   12. Scroll Animation
   ------------------------------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-enter), transform var(--transition-enter);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}


/* ------------------------------------------------------------
   13. Responsive Adjustments
   ------------------------------------------------------------ */

/* Mobile: < 640px */
@media (max-width: 639px) {
  .section {
    padding-block: var(--space-6);
  }

  .hero {
    padding-top: var(--space-6);
    padding-bottom: var(--space-6);
  }

  .interest-form__row {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
    justify-content: center;
    padding: 13px 22px;
  }

  .field {
    min-width: unset;
  }

  .brand-card__header,
  .brand-card__body,
  .brand-card__cta {
    padding: var(--space-3);
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }

  .footer__right {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
  }
}

/* Tablet and up: 640–1024px */
@media (min-width: 640px) and (max-width: 1023px) {
  .brand-card {
    max-width: 100%;
  }
}