/* ============================
   POCO — Power of Connectivity
   Global Stylesheet
   ============================ */

:root {
  --black: #111111;
  --white: #ffffff;
  --gray-100: #f8f8f8;
  --gray-200: #eeeeee;
  --gray-400: #aaaaaa;
  --gray-600: #666666;
  --accent: #0055ff;
  --accent-dark: #0040cc;
  --radius: 4px;
  --transition: 0.25s ease;
  --max-width: 1200px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  background: var(--white);
  color: var(--black);
  line-height: 1.6;
  font-size: 16px;
}

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

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

/* ============================
   TYPOGRAPHY
   ============================ */

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }

p {
  color: var(--gray-600);
  max-width: 65ch;
}

/* ============================
   LAYOUT
   ============================ */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 6rem 0;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.section-title {
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--gray-600);
  margin-bottom: 3rem;
}

/* ============================
   NAVBAR
   ============================ */

nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
}

.nav-logo svg {
  height: 36px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--black);
}

.nav-cta {
  background: var(--black);
  color: var(--white) !important;
  padding: 0.55rem 1.3rem;
  border-radius: var(--radius);
  font-weight: 600 !important;
  transition: background var(--transition) !important;
}

.nav-cta:hover {
  background: var(--accent) !important;
  color: var(--white) !important;
}

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

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--black);
  transition: var(--transition);
}

/* ============================
   BUTTONS
   ============================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--black);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--accent);
}

.btn-outline {
  background: transparent;
  color: var(--black);
  border: 2px solid var(--black);
}

.btn-outline:hover {
  background: var(--black);
  color: var(--white);
}

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

.hero {
  padding: 8rem 0 6rem;
  background: var(--gray-100);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  border: 80px solid rgba(0, 85, 255, 0.05);
  pointer-events: none;
}

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

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 85, 255, 0.08);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.4rem 0.9rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  margin-bottom: 1.5rem;
}

.hero h1 span {
  color: var(--accent);
}

.hero p {
  font-size: 1.15rem;
  margin-bottom: 2.5rem;
}

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

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-logo-large {
  opacity: 0.08;
  width: 100%;
  max-width: 380px;
}

/* ============================
   STATS BAR
   ============================ */

.stats-bar {
  padding: 3rem 0;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--black);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--gray-600);
  margin-top: 0.25rem;
}

/* ============================
   PRODUCT CARDS
   ============================ */

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.product-card {
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.product-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  transform: translateY(-4px);
}

.product-card-image {
  background: var(--gray-100);
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  border-bottom: 1px solid var(--gray-200);
}

.product-card-body {
  padding: 1.75rem;
}

.product-tag {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.product-card h3 {
  margin-bottom: 0.75rem;
}

.product-card p {
  font-size: 0.9rem;
  margin-bottom: 1.25rem;
}

.product-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.product-features li {
  font-size: 0.85rem;
  color: var(--gray-600);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.product-features li::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* ============================
   WHY POCO / FEATURES
   ============================ */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-item {
  padding: 2rem;
  border-radius: 8px;
  border: 1px solid var(--gray-200);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.feature-item h3 {
  margin-bottom: 0.5rem;
}

.feature-item p {
  font-size: 0.9rem;
}

/* ============================
   CTA BANNER
   ============================ */

.cta-banner {
  background: var(--black);
  color: var(--white);
  padding: 5rem 0;
  text-align: center;
}

.cta-banner h2 {
  color: var(--white);
  margin-bottom: 1rem;
}

.cta-banner p {
  color: var(--gray-400);
  margin: 0 auto 2rem;
  font-size: 1.1rem;
}

.cta-banner .btn-primary {
  background: var(--accent);
  color: var(--white);
}

.cta-banner .btn-primary:hover {
  background: var(--accent-dark);
}

/* ============================
   ABOUT PAGE
   ============================ */

.about-hero {
  padding: 6rem 0 4rem;
  background: var(--gray-100);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about-visual {
  display: flex;
  justify-content: center;
}

.about-logo-display {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.about-logo-display svg {
  width: 160px;
  height: auto;
}

.about-logo-display .tagline {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

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

.value-card {
  padding: 1.5rem;
  background: var(--gray-100);
  border-radius: 8px;
}

.value-card h4 {
  font-size: 1rem;
  margin-bottom: 0.4rem;
}

.value-card p {
  font-size: 0.85rem;
}

/* ============================
   PRODUCTS PAGE
   ============================ */

.products-hero {
  padding: 6rem 0 3rem;
  background: var(--gray-100);
}

.product-full-card {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: center;
  padding: 4rem 0;
  border-bottom: 1px solid var(--gray-200);
}

.product-full-card:last-child {
  border-bottom: none;
}

.product-full-card.reverse {
  direction: rtl;
}

.product-full-card.reverse > * {
  direction: ltr;
}

.product-image-box {
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
}

.product-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.5rem 0;
}

.spec-item {
  background: var(--gray-100);
  padding: 1rem;
  border-radius: 6px;
}

.spec-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 0.25rem;
}

.spec-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--black);
}

/* ============================
   CONTACT PAGE
   ============================ */

.contact-page {
  padding: 6rem 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 5rem;
}

.contact-info h2 {
  margin-bottom: 1rem;
}

.contact-info p {
  margin-bottom: 2rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-detail {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-detail-icon {
  font-size: 1.3rem;
  margin-top: 2px;
}

.contact-detail-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 0.2rem;
}

.contact-detail-value {
  font-size: 0.95rem;
  color: var(--black);
  font-weight: 500;
}

/* Contact Form */
.contact-form {
  background: var(--gray-100);
  border-radius: 8px;
  padding: 2.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--black);
}

input, textarea, select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--white);
  color: var(--black);
  transition: border-color var(--transition);
  outline: none;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
}

textarea {
  resize: vertical;
  min-height: 130px;
}

/* ============================
   PAGE HERO (inner pages)
   ============================ */

.page-hero {
  padding: 5rem 0 3rem;
  background: var(--gray-100);
  border-bottom: 1px solid var(--gray-200);
}

.page-hero h1 {
  margin-bottom: 0.75rem;
}

.page-hero p {
  font-size: 1.1rem;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--gray-400);
  margin-bottom: 1rem;
}

.breadcrumb a {
  color: var(--accent);
}

.breadcrumb a:hover {
  text-decoration: underline;
}

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

footer {
  background: var(--black);
  color: var(--white);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--gray-400);
  font-size: 0.9rem;
  margin-top: 1rem;
  max-width: 30ch;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
}

.footer-logo svg {
  height: 32px;
  width: auto;
  filter: invert(1);
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 1.25rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer-col a {
  color: var(--gray-400);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid #222;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: var(--gray-400);
  max-width: none;
}

/* ============================
   UTILITIES
   ============================ */

.text-center { text-align: center; }
.text-accent { color: var(--accent); }

.divider {
  width: 48px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  margin: 1.5rem 0;
}

/* ============================
   RESPONSIVE
   ============================ */

@media (max-width: 900px) {
  .hero-inner,
  .about-content,
  .contact-grid,
  .product-full-card,
  .product-full-card.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 2.5rem;
  }

  .hero-visual,
  .about-visual {
    display: none;
  }

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

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

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

@media (max-width: 600px) {
  section { padding: 4rem 0; }

  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--gray-200);
    gap: 1.5rem;
    align-items: flex-start;
  }

  .nav-links.open {
    display: flex;
  }

  .hamburger {
    display: flex;
  }

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

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

  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .product-specs {
    grid-template-columns: 1fr;
  }

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