/* InteractiveTech — Static Site Styles
 * Design: "Fluid Intelligence" — Organic Modernism
 * Colors: #117275 teal, #102A43 navy, #00AEEF cyan, #DDF7F3 mint, #F8FAF9 warm-white, #1F2933 charcoal
 * Fonts: Sora (headings), Inter (body)
 */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: #1F2933;
  background: #F8FAF9;
  line-height: 1.7;
  font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Sora', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.2;
  color: #102A43;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

/* ===== UTILITIES ===== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .container { padding: 0 1.5rem; }
}

@media (min-width: 1024px) {
  .container { padding: 0 2rem; }
}

.section-label {
  display: inline-block;
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.section-label--mint {
  background: #DDF7F3;
  color: #117275;
}

.section-label--dark {
  background: rgba(17, 114, 117, 0.3);
  color: #00AEEF;
}

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

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.2s cubic-bezier(0.23, 1, 0.32, 1);
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.btn:active {
  transform: scale(0.97);
}

.btn--primary {
  background: #00AEEF;
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 174, 239, 0.25);
}

.btn--primary:hover {
  background: #009dd6;
  transform: scale(1.02);
}

.btn--outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn--outline:hover {
  border-color: #00AEEF;
  color: #00AEEF;
}

.btn--outline-dark {
  background: transparent;
  color: #117275;
  border: 2px solid #117275;
}

.btn--outline-dark:hover {
  background: #117275;
  color: #fff;
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

/* ===== NAVIGATION ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: all 0.3s ease;
  padding: 0;
}

.navbar--scrolled {
  background: rgba(16, 42, 67, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem;
}

.navbar__logo img {
  height: 2.5rem;
  width: auto;
}

.navbar__links {
  display: none;
  align-items: center;
  gap: 2rem;
}

.navbar__links a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.2s ease;
}

.navbar__links a:hover {
  color: #00AEEF;
}

.navbar__links .btn {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

.navbar__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: #fff;
}

.navbar__toggle svg {
  width: 1.5rem;
  height: 1.5rem;
}

.navbar__mobile {
  display: none;
  background: rgba(16, 42, 67, 0.98);
  backdrop-filter: blur(12px);
  padding: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar__mobile.active {
  display: block;
}

.navbar__mobile a {
  display: block;
  padding: 0.75rem 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
}

.navbar__mobile .btn {
  width: 100%;
  margin-top: 1rem;
}

@media (min-width: 768px) {
  .navbar__links { display: flex; }
  .navbar__toggle { display: none; }
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(16, 42, 67, 0.7), rgba(16, 42, 67, 0.5), rgba(16, 42, 67, 0.8));
}

.hero__content {
  position: relative;
  z-index: 10;
  padding: 8rem 0 5rem;
  max-width: 48rem;
}

.hero__title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.hero__title span {
  color: #00AEEF;
}

.hero__subtitle {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
  margin-bottom: 2.5rem;
  max-width: 40rem;
}

.hero__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero__wave {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  line-height: 0;
}

.hero__wave svg {
  width: 100%;
  height: auto;
}

@media (min-width: 768px) {
  .hero__title { font-size: 3.25rem; }
  .hero__content { padding: 10rem 0 8rem; }
}

@media (min-width: 1024px) {
  .hero__title { font-size: 3.75rem; }
}

/* ===== PAGE HERO (for inner pages) ===== */
.page-hero {
  position: relative;
  padding: 8rem 0 4rem;
  background: linear-gradient(135deg, #102A43 0%, #117275 100%);
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: rgba(0, 174, 239, 0.08);
  filter: blur(80px);
}

.page-hero__title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
  position: relative;
}

.page-hero__subtitle {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.8);
  max-width: 40rem;
  position: relative;
}

.page-hero__wave {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  line-height: 0;
}

.page-hero__wave svg {
  width: 100%;
  height: auto;
}

@media (min-width: 768px) {
  .page-hero { padding: 10rem 0 5rem; }
  .page-hero__title { font-size: 3rem; }
}

/* ===== SECTIONS ===== */
.section {
  padding: 5rem 0;
}

.section--mint {
  background: #F8FAF9;
}

.section--dark {
  background: #102A43;
  color: #fff;
}

.section--dark h2,
.section--dark h3 {
  color: #fff;
}

.section__header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section__title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.section__desc {
  font-size: 1.125rem;
  color: rgba(31, 41, 51, 0.75);
  max-width: 40rem;
  margin: 0 auto;
}

.section--dark .section__desc {
  color: rgba(255, 255, 255, 0.7);
}

@media (min-width: 768px) {
  .section { padding: 7rem 0; }
  .section__title { font-size: 2.5rem; }
}

/* ===== CARDS GRID ===== */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }

@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1280px) {
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* ===== SERVICE CARD ===== */
.card {
  padding: 1.75rem;
  border-radius: 1rem;
  background: #fff;
  border: 1px solid #DDF7F3;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(17, 114, 117, 0.08);
  border-color: rgba(17, 114, 117, 0.2);
}

.card__icon {
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, #117275, #00AEEF);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  transition: transform 0.3s ease;
}

.card:hover .card__icon {
  transform: scale(1.1);
}

.card__icon svg {
  width: 1.5rem;
  height: 1.5rem;
  color: #fff;
  stroke: #fff;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card__title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: #102A43;
}

.card__text {
  font-size: 0.875rem;
  color: rgba(31, 41, 51, 0.7);
  line-height: 1.6;
  flex: 1;
}

.card__tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  background: rgba(17, 114, 117, 0.1);
  color: #117275;
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid #DDF7F3;
  color: #117275;
  font-size: 0.875rem;
  font-weight: 500;
  transition: gap 0.2s ease;
}

.card:hover .card__link {
  gap: 0.5rem;
}

/* ===== AUDIENCE CHIPS ===== */
.chip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  border-radius: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
}

.chip:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(0, 174, 239, 0.3);
}

.chip__icon {
  width: 1.25rem;
  height: 1.25rem;
  color: #00AEEF;
  flex-shrink: 0;
}

.chip__icon svg {
  width: 100%;
  height: 100%;
  stroke: #00AEEF;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.chip__text {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.9);
}

/* ===== PROBLEM CARD ===== */
.problem-card {
  padding: 1.5rem;
  border-radius: 1rem;
  background: #fff;
  border: 1px solid #DDF7F3;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: all 0.3s ease;
  height: 100%;
}

.problem-card:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  border-color: rgba(17, 114, 117, 0.2);
}

.problem-card__icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  background: #DDF7F3;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  transition: background 0.3s ease;
}

.problem-card:hover .problem-card__icon {
  background: #117275;
}

.problem-card__icon svg {
  width: 1.25rem;
  height: 1.25rem;
  stroke: #117275;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: stroke 0.3s ease;
}

.problem-card:hover .problem-card__icon svg {
  stroke: #fff;
}

.problem-card__title {
  font-size: 1rem;
  font-weight: 600;
  color: #102A43;
  margin-bottom: 0.5rem;
}

.problem-card__text {
  font-size: 0.875rem;
  color: rgba(31, 41, 51, 0.65);
  line-height: 1.6;
}

/* ===== CTA SECTION ===== */
.cta {
  position: relative;
  padding: 6rem 0;
  overflow: hidden;
}

.cta__bg {
  position: absolute;
  inset: 0;
}

.cta__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cta__overlay {
  position: absolute;
  inset: 0;
  background: rgba(16, 42, 67, 0.6);
}

.cta__content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 40rem;
  margin: 0 auto;
}

.cta__title {
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1.5rem;
}

.cta__text {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

@media (min-width: 768px) {
  .cta { padding: 8rem 0; }
  .cta__title { font-size: 2.75rem; }
}

/* ===== FOOTER ===== */
.footer {
  background: #102A43;
  padding: 3rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.footer__logo img {
  height: 1.75rem;
  width: auto;
}

.footer__links {
  display: flex;
  gap: 1.5rem;
}

.footer__links a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.2s ease;
}

.footer__links a:hover {
  color: #00AEEF;
}

.footer__copy {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.4);
}

@media (min-width: 768px) {
  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ===== WAVE DIVIDERS ===== */
.wave-divider {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  line-height: 0;
}

.wave-divider svg {
  width: 100%;
  height: auto;
}

/* ===== SERVICE DETAIL (Services page) ===== */
.service-detail {
  padding: 3rem 0;
  border-bottom: 1px solid #DDF7F3;
}

.service-detail:last-child {
  border-bottom: none;
}

.service-detail__header {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.service-detail__icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 0.75rem;
  background: linear-gradient(135deg, #117275, #00AEEF);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.service-detail__icon svg {
  width: 1.75rem;
  height: 1.75rem;
  stroke: #fff;
  fill: none;
  stroke-width: 2;
}

.service-detail__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #102A43;
}

.service-detail__desc {
  font-size: 1rem;
  color: rgba(31, 41, 51, 0.75);
  margin-bottom: 1.5rem;
  max-width: 48rem;
}

.service-detail__deliverables {
  margin-bottom: 1.5rem;
}

.service-detail__deliverables h4 {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #117275;
  margin-bottom: 0.75rem;
}

.service-detail__deliverables ul {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
}

@media (min-width: 640px) {
  .service-detail__deliverables ul {
    grid-template-columns: repeat(2, 1fr);
  }
}

.service-detail__deliverables li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: #1F2933;
}

.service-detail__deliverables li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #00AEEF;
  margin-top: 0.5rem;
  flex-shrink: 0;
}

.service-detail__example {
  padding: 1.25rem;
  border-radius: 0.75rem;
  background: #DDF7F3;
  border-left: 3px solid #117275;
}

.service-detail__example strong {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #117275;
  margin-bottom: 0.25rem;
}

.service-detail__example p {
  font-size: 0.9rem;
  color: #1F2933;
}

/* ===== CASE STUDY CARD ===== */
.case-card {
  padding: 2rem;
  border-radius: 1rem;
  background: #fff;
  border: 1px solid #DDF7F3;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  height: 100%;
}

.case-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #102A43;
  margin-bottom: 1.5rem;
}

.case-card__section {
  margin-bottom: 1.25rem;
}

.case-card__section h4 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #117275;
  margin-bottom: 0.5rem;
}

.case-card__section p {
  font-size: 0.9rem;
  color: rgba(31, 41, 51, 0.75);
  line-height: 1.6;
}

/* ===== ABOUT PAGE ===== */
.about-content {
  max-width: 48rem;
  margin: 0 auto;
}

.about-content p {
  font-size: 1.05rem;
  color: rgba(31, 41, 51, 0.8);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.about-content strong {
  color: #102A43;
}

/* ===== CONTACT FORM ===== */
.form {
  max-width: 40rem;
  margin: 0 auto;
}

.form__group {
  margin-bottom: 1.5rem;
}

.form__label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: #102A43;
  margin-bottom: 0.5rem;
}

.form__label span {
  color: rgba(31, 41, 51, 0.5);
  font-weight: 400;
}

.form__input,
.form__textarea,
.form__select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #DDF7F3;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-family: inherit;
  color: #1F2933;
  background: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form__input:focus,
.form__textarea:focus,
.form__select:focus {
  outline: none;
  border-color: #117275;
  box-shadow: 0 0 0 3px rgba(17, 114, 117, 0.1);
}

.form__textarea {
  min-height: 8rem;
  resize: vertical;
}

/* ===== AI PAGE SPECIFICS ===== */
.ai-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .ai-grid { grid-template-columns: repeat(2, 1fr); }
}

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

.ai-card {
  padding: 1.5rem;
  border-radius: 1rem;
  background: #fff;
  border: 1px solid #DDF7F3;
  transition: all 0.3s ease;
}

.ai-card:hover {
  box-shadow: 0 8px 30px rgba(17, 114, 117, 0.08);
  border-color: rgba(17, 114, 117, 0.2);
}

.ai-card__title {
  font-size: 1rem;
  font-weight: 600;
  color: #102A43;
  margin-bottom: 0.5rem;
}

.ai-card__text {
  font-size: 0.875rem;
  color: rgba(31, 41, 51, 0.7);
  line-height: 1.6;
}

.highlight-box {
  padding: 2rem;
  border-radius: 1rem;
  background: #DDF7F3;
  border: 1px solid rgba(17, 114, 117, 0.15);
  margin-top: 3rem;
}

.highlight-box__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #102A43;
  margin-bottom: 1rem;
}

.highlight-box__text {
  font-size: 1rem;
  color: rgba(31, 41, 51, 0.8);
  line-height: 1.7;
}

.highlight-box ul {
  margin-top: 1rem;
}

.highlight-box li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.95rem;
  color: #1F2933;
  margin-bottom: 0.5rem;
}

.highlight-box li::before {
  content: '✓';
  color: #117275;
  font-weight: 700;
  flex-shrink: 0;
}

/* ===== SCROLL ANIMATIONS ===== */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s cubic-bezier(0.23, 1, 0.32, 1), transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays */
.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.24s; }
.delay-4 { transition-delay: 0.32s; }
.delay-5 { transition-delay: 0.40s; }
.delay-6 { transition-delay: 0.48s; }
.delay-7 { transition-delay: 0.56s; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #F8FAF9; }
::-webkit-scrollbar-thumb { background: #117275; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #0e5c5e; }