/* ===================================
   wondrax solutions - Stylesheet
   Modern, professional, tech-focused
   =================================== */

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

:root {
  --color-bg: #f8fafa;
  --color-surface: #ffffff;
  --color-surface-alt: #e8f4f4;
  --color-border: #d1e0e0;
  --color-text: #1a2e2e;
  --color-text-secondary: #5a7070;
  --color-primary: #0d9488;
  --color-primary-dark: #0f766e;
  --color-primary-light: #ccfbf1;
  --color-accent: #14b8a6;
  --color-code-bg: #1e2e2e;
  --color-code-text: #e2f0f0;

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

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 50px -12px rgba(0, 0, 0, 0.12);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --transition: 0.2s ease;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

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

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.8rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 1px 3px rgba(37, 99, 235, 0.3);
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

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

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(250, 251, 252, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
}

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

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.header__logo img {
  height: 36px;
  width: auto;
}

.header__nav {
  display: flex;
  gap: 2rem;
}

.header__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition);
  position: relative;
}

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

.header__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition);
  border-radius: 1px;
}

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

.header__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.header__burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: all 0.3s ease;
}

.header__burger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.header__burger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Hero --- */
.hero {
  padding: 10rem 0 6rem;
  background: linear-gradient(180deg, var(--color-primary-light) 0%, var(--color-bg) 100%);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero__title {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--color-text);
}

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

.hero__subtitle {
  margin-top: 1.5rem;
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  max-width: 520px;
}

.hero__experience {
  margin-top: 1rem;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  max-width: 520px;
  font-weight: 500;
  padding-left: 1rem;
  border-left: 3px solid var(--color-primary);
}

.hero__actions {
  display: flex;
  gap: 1rem;
  margin-top: 2.5rem;
}

/* Code Block Visual */
.hero__code {
  background: var(--color-code-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  transform: perspective(800px) rotateY(-2deg) rotateX(1deg);
  transition: transform 0.4s ease;
}

.hero__code:hover {
  transform: perspective(800px) rotateY(0deg) rotateX(0deg);
}

.code__header {
  display: flex;
  gap: 6px;
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, 0.06);
}

.code__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.code__dot--red { background: #ef4444; }
.code__dot--yellow { background: #eab308; }
.code__dot--green { background: #22c55e; }

.code__body {
  padding: 1.25rem 1.5rem 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--color-code-text);
  overflow-x: auto;
}

.code__keyword { color: #5eead4; }
.code__method { color: #2dd4bf; }

/* --- Section Shared --- */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 3.5rem;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-subtitle {
  margin-top: 0.75rem;
  font-size: 1.05rem;
  color: var(--color-text-secondary);
}

/* --- Services --- */
.services {
  padding: 6rem 0;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all 0.3s ease;
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.service-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  color: var(--color-primary);
  margin-bottom: 1.25rem;
}

.service-card__title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.service-card__text {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

.service-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
}

.service-card__tags li {
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.3rem 0.75rem;
  background: var(--color-surface-alt);
  border-radius: 100px;
  color: var(--color-text-secondary);
}

/* --- BriefCheck --- */
.briefcheck {
  padding: 6rem 0;
  background: var(--color-surface-alt);
}

.briefcheck__card {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: center;
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.briefcheck__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  background: linear-gradient(135deg, #c4d4d4 0%, #a8c0c0 100%);
  border-radius: var(--radius-lg);
  min-height: 420px;
}

/* Phone Mockup */
.phone-mockup {
  display: flex;
  align-items: center;
  justify-content: center;
}

.phone-mockup__frame {
  position: relative;
  width: 220px;
  border-radius: 36px;
  background: #1a1a1a;
  padding: 12px;
  box-shadow:
    0 0 0 2px #333,
    0 0 0 4px #111,
    0 30px 60px rgba(0, 0, 0, 0.45),
    inset 0 0 0 1px #444;
}

.phone-mockup__notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 14px;
  background: #1a1a1a;
  border-radius: 0 0 10px 10px;
  z-index: 2;
}

.phone-mockup__screen {
  border-radius: 26px;
  overflow: hidden;
  background: #fff;
  aspect-ratio: 9 / 19.5;
  position: relative;
}

.phone-mockup__screenshot {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}


.briefcheck__title {
  font-family: 'Open Sans', var(--font-sans);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.briefcheck__text {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.briefcheck__features {
  list-style: none;
  margin-bottom: 1.5rem;
}

.briefcheck__features li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
  color: var(--color-text);
}

.briefcheck__check {
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 2px;
}

.briefcheck__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin-bottom: 1.5rem;
}

.briefcheck__tags li {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.35rem 0.85rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
}

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

/* --- Contact --- */
.contact {
  padding: 6rem 0;
}

.contact__form {
  max-width: 640px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form__group--full {
  grid-column: 1 / -1;
}

.form__label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--color-text);
}

.form__input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  outline: none;
}

.form__input::placeholder {
  color: #9ca3af;
}

.form__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form__textarea {
  min-height: 140px;
  resize: vertical;
}

/* --- Footer --- */
.footer {
  padding: 3rem 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

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

.footer__logo {
  height: 28px;
  width: auto;
  opacity: 0.7;
}

.footer__tagline {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-top: 0.25rem;
}

.footer__links {
  display: flex;
  gap: 2rem;
}

.footer__links a {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  transition: color var(--transition);
}

.footer__links a:hover {
  color: var(--color-primary);
}

.footer__bottom p {
  font-size: 0.8rem;
  color: #9ca3af;
}

/* --- Scroll Animations --- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered animation for service cards */
.service-card.animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.service-card.animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.service-card.animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }

/* --- Responsive --- */
@media (max-width: 900px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero__title {
    font-size: 2.4rem;
  }

  .hero__visual {
    order: -1;
  }

  .hero__code {
    transform: none;
  }

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

  .briefcheck__card {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .briefcheck__visual {
    order: -1;
    min-height: 340px;
  }

  .phone-mockup__frame {
    width: 180px;
  }
}

@media (max-width: 640px) {
  .header__nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
  }

  .header__nav.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .header__burger {
    display: flex;
  }

  .hero {
    padding: 8rem 0 4rem;
  }

  .hero__title {
    font-size: 2rem;
  }

  .hero__subtitle {
    font-size: 1rem;
  }

  .hero__actions {
    flex-direction: column;
  }

  .section-title {
    font-size: 1.8rem;
  }

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

  .services, .briefcheck, .contact {
    padding: 4rem 0;
  }

  .briefcheck__visual {
    min-height: 290px;
  }

  .phone-mockup__frame {
    width: 155px;
    border-radius: 30px;
    padding: 10px;
  }

  .phone-mockup__screen {
    border-radius: 22px;
  }
}