/* ============================================
   App Me Developers — Main Stylesheet
   ============================================ */

/* --- Config / Variables --- */
:root {
  --color-bg: #0a0a0f;
  --color-bg-elevated: #12121a;
  --color-bg-card: #16161f;
  --color-bg-card-hover: #1c1c28;
  --color-surface: #1e1e2a;
  --color-border: rgba(255, 255, 255, 0.06);
  --color-border-hover: rgba(255, 255, 255, 0.12);

  --color-text: #e4e4e7;
  --color-text-muted: #8b8b9e;
  --color-text-dim: #5a5a6e;

  --color-primary: #6c5ce7;
  --color-primary-light: #a29bfe;
  --color-accent: #00cec9;
  --color-accent-light: #55efc4;

  --gradient-primary: linear-gradient(135deg, #6c5ce7 0%, #00cec9 100%);
  --gradient-glow: linear-gradient(135deg, rgba(108, 92, 231, 0.15) 0%, rgba(0, 206, 201, 0.15) 100%);

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(108, 92, 231, 0.15);

  --container-max: 1200px;
  --nav-height: 72px;
}

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

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

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* --- Utility --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
  padding: 6px 16px;
  border: 1px solid rgba(0, 206, 201, 0.2);
  border-radius: 100px;
  background: rgba(0, 206, 201, 0.05);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
  white-space: nowrap;
}

.btn--primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(108, 92, 231, 0.45);
}

.btn--outline {
  border: 1px solid var(--color-border-hover);
  color: var(--color-text);
  background: transparent;
}

.btn--outline:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
  background: rgba(108, 92, 231, 0.05);
}

.btn--full {
  width: 100%;
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: background 0.3s ease;
}

.nav__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 700;
}

.nav__logo-img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.nav__logo-accent {
  color: var(--color-text-muted);
  font-weight: 400;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
  transition: width 0.25s ease;
}

.nav__link:hover {
  color: var(--color-text);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-height) + 40px) 0 80px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.4;
}

.hero__glow--1 {
  width: 500px;
  height: 500px;
  background: var(--color-primary);
  top: -100px;
  right: -100px;
  opacity: 0.15;
}

.hero__glow--2 {
  width: 400px;
  height: 400px;
  background: var(--color-accent);
  bottom: -50px;
  left: -50px;
  opacity: 0.1;
}

.hero__content {
  max-width: 760px;
  position: relative;
  z-index: 1;
}

.hero__badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent);
  padding: 8px 20px;
  border: 1px solid rgba(0, 206, 201, 0.2);
  border-radius: 100px;
  background: rgba(0, 206, 201, 0.05);
  margin-bottom: 32px;
  animation: fadeInUp 0.6s ease;
}

.hero__title {
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease 0.1s both;
}

.hero__title-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 580px;
  animation: fadeInUp 0.6s ease 0.2s both;
}

.hero__actions {
  display: flex;
  gap: 16px;
  margin-bottom: 64px;
  animation: fadeInUp 0.6s ease 0.3s both;
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: 32px;
  animation: fadeInUp 0.6s ease 0.4s both;
}

.hero__stat-value {
  display: block;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
}

.hero__stat-label {
  font-size: 0.85rem;
  color: var(--color-text-dim);
}

.hero__stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
}

/* ============================================
   Product Section
   ============================================ */
.product {
  padding: 120px 0;
  position: relative;
}

.product__features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.product__feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all 0.3s ease;
}

.product__feature-card:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.product__feature-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--gradient-glow);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-primary-light);
}

.product__feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.product__feature-card p {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.product__cta {
  text-align: center;
  padding: 48px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.product__cta p {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.product__cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================
   Services Section
   ============================================ */
.services {
  padding: 120px 0;
  background: var(--color-bg-elevated);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.services__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.services__card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.services__card-number {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-primary-light);
  margin-bottom: 16px;
  opacity: 0.6;
}

.services__card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.services__card p {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  flex: 1;
}

.services__card-rate {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--color-accent);
}

/* ============================================
   Tech Stack
   ============================================ */
.tech {
  padding: 100px 0;
}

.tech__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.tech__item {
  padding: 12px 24px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: all 0.25s ease;
}

.tech__item:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
  background: rgba(108, 92, 231, 0.05);
}

/* ============================================
   Process
   ============================================ */
.process {
  padding: 120px 0;
  background: var(--color-bg-elevated);
}

.process__timeline {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.process__step {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}

.process__step-number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.25);
}

.process__step-content {
  flex: 1;
  padding-top: 4px;
}

.process__step-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.process__step-content p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ============================================
   Contact
   ============================================ */
.contact {
  padding: 120px 0;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact__info-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.contact__info-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact__info-card a {
  color: var(--color-primary-light);
  font-weight: 500;
  transition: color 0.2s ease;
}

.contact__info-card a:hover {
  color: var(--color-accent-light);
}

.contact__info-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.contact__form {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact__form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.contact__form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.contact__form-group input,
.contact__form-group select,
.contact__form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.2s ease;
  outline: none;
}

.contact__form-group input::placeholder,
.contact__form-group textarea::placeholder {
  color: var(--color-text-dim);
}

.contact__form-group input:focus,
.contact__form-group select:focus,
.contact__form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
}

.contact__form-group select {
  appearance: none;
  -webkit-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='%238b8b9e' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 44px;
}

.contact__form-group select option {
  background: var(--color-bg-card);
  color: var(--color-text);
}

.contact__form-group textarea {
  resize: vertical;
  min-height: 100px;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 64px 0 32px;
  background: var(--color-bg-elevated);
}

.footer__top {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__brand {
  max-width: 320px;
}

.footer__brand p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-top: 16px;
  line-height: 1.6;
}

.footer__links {
  display: flex;
  gap: 64px;
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text);
  margin-bottom: 4px;
}

.footer__col a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

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

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  text-align: center;
}

.footer__bottom p {
  font-size: 0.82rem;
  color: var(--color-text-dim);
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .product__features {
    grid-template-columns: repeat(2, 1fr);
  }

  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav__links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 4px;
    border-bottom: 1px solid var(--color-border);
  }

  .nav__links.active {
    display: flex;
  }

  .nav__links .nav__link {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    width: 100%;
  }

  .nav__links .nav__link:hover {
    background: var(--color-bg-card);
  }

  .nav__links .nav__link::after {
    display: none;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

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

  .nav__toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero__title {
    font-size: clamp(2.2rem, 8vw, 3.2rem);
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__stats {
    flex-wrap: wrap;
    gap: 20px;
  }

  .hero__stat-divider {
    display: none;
  }

  .product__features {
    grid-template-columns: 1fr;
  }

  .services__grid {
    grid-template-columns: 1fr;
  }

  .contact__grid {
    grid-template-columns: 1fr;
  }

  .footer__top {
    flex-direction: column;
    gap: 32px;
  }

  .footer__links {
    gap: 40px;
  }

  .section-title {
    font-size: clamp(1.7rem, 5vw, 2.4rem);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .product__cta {
    padding: 32px 20px;
  }

  .contact__form {
    padding: 24px;
  }

  .footer__links {
    flex-direction: column;
    gap: 24px;
  }
}