/* =============================================
   GREENOMICS — style.css
   Earthbound Precision aesthetic
   ============================================= */

/* --- Custom Properties --- */
:root {
  --col-green-deep:   #081c10;
  --col-green-dark:   #0d2b1f;
  --col-green-brand:  #2D6A4F;
  --col-green-mid:    #3a7a5c;
  --col-green-accent: #52B788;
  --col-green-pale:   #d8f3dc;
  --col-off-white:    #F8F9F4;
  --col-white:        #FFFFFF;
  --col-text:         #1A1A1A;
  --col-text-mid:     #4a5c50;
  --col-text-muted:   #7a8c80;
  --col-border:       #e2e8e4;

  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;

  --nav-h:       68px;
  --max-w:       1100px;
  --gutter:      clamp(1.5rem, 5vw, 3rem);
  --section-py:  clamp(4rem, 8vw, 6.5rem);

  --radius:      6px;
  --shadow-sm:   0 2px 8px rgba(0,0,0,0.06);
  --shadow-card: 0 6px 28px rgba(45,106,79,0.10);
  --transition:  0.24s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  font-size: 16px;
}

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

a       { color: inherit; text-decoration: none; }
ul      { list-style: none; }
img     { max-width: 100%; height: auto; display: block; }
p + p   { margin-top: 1em; }

/* --- Container --- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* --- Alternating section bg --- */
.bg-alt { background: var(--col-off-white); }

/* --- Section padding --- */
section { padding: var(--section-py) 0; }

/* --- Section heading --- */
.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 400;
  color: var(--col-green-brand);
  line-height: 1.2;
  position: relative;
  padding-bottom: 1rem;
  margin-bottom: 0.5rem;
}

.section-heading::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 44px;
  height: 3px;
  background: var(--col-green-accent);
  border-radius: 2px;
}

.section-heading--light            { color: #fff; }
.section-heading--light::after     { background: var(--col-green-accent); }

.section-lead {
  font-size: 1rem;
  color: var(--col-text-mid);
  margin-top: 1.25rem;
  margin-bottom: 2rem;
}

/* =============================================
   NAVIGATION
   ============================================= */

#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  height: var(--nav-h);
  padding: 0 var(--gutter);
  background: rgba(8, 28, 16, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(82,183,136,0.1);
}

.nav-toggle { display: none; }

.nav-logo {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--col-green-accent);
  flex-shrink: 0;
  margin-right: auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo-icon {
  height: 28px;
  width: auto;
  flex-shrink: 0;
  filter: brightness(0) saturate(100%) invert(65%) sepia(30%) saturate(600%) hue-rotate(100deg) brightness(95%);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  margin: 0 -8px;
  z-index: 2;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: rgba(255,255,255,0.7);
  transform-origin: center;
  transition: transform 0.28s ease, opacity 0.28s ease;
}

.nav-menu ul {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 1.75rem);
}

.nav-menu a {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}

.nav-menu a:hover { color: rgba(255,255,255,0.95); }

.nav-menu .nav-cta {
  color: var(--col-green-accent);
  border: 1px solid rgba(82,183,136,0.45);
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.nav-menu .nav-cta:hover {
  background: var(--col-green-accent);
  border-color: var(--col-green-accent);
  color: #fff;
}

/* Mobile nav */
@media (max-width: 767px) {
  .nav-hamburger { display: flex; }

  .nav-menu {
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(8, 28, 16, 0.98);
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    border-bottom: 1px solid rgba(82,183,136,0.08);
  }

  .nav-toggle:checked ~ .nav-menu           { max-height: 420px; }
  .nav-toggle:checked ~ .nav-hamburger span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .nav-toggle:checked ~ .nav-hamburger span:nth-child(2) { opacity: 0; transform: scaleX(0); }
  .nav-toggle:checked ~ .nav-hamburger span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

  .nav-menu ul {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.5rem var(--gutter) 1.75rem;
    gap: 0;
  }

  .nav-menu li        { width: 100%; border-bottom: 1px solid rgba(255,255,255,0.05); }
  .nav-menu a         { display: block; padding: 0.875rem 0; font-size: 0.9rem; color: rgba(255,255,255,0.65); }
  .nav-menu .nav-cta  { border: none; padding: 0.875rem 0; color: var(--col-green-accent); }
}

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

#hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-h) + 2rem) var(--gutter) 5rem;
  overflow: hidden;
  background:
    radial-gradient(ellipse 90% 60% at 15% 65%, rgba(82,183,136,0.06) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 85% 20%, rgba(45,106,79,0.18) 0%, transparent 55%),
    linear-gradient(158deg, #060f08 0%, #0d2b1f 40%, #111f16 70%, #07160c 100%);
}

/* Subtle dot grid texture */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(82,183,136,0.12) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 30%, transparent 100%);
}

/* Background flame logo — subtle watermark like the old ring */
.hero-bg-logo {
  position: absolute;
  height: min(44vh, 320px);
  width: auto;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.07;
  pointer-events: none;
  user-select: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  animation: fadeUp 0.9s ease both;
}

.hero-eyebrow {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--col-green-accent);
  opacity: 0.8;
  animation: fadeUp 0.9s 0.1s ease both;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 11vw, 8rem);
  font-weight: 400;
  color: #fff;
  letter-spacing: 0.04em;
  line-height: 1;
  animation: fadeUp 0.9s 0.2s ease both;
}

.hero-tagline {
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  font-weight: 400;
  color: rgba(255,255,255,0.48);
  max-width: 460px;
  line-height: 1.7;
  animation: fadeUp 0.9s 0.35s ease both;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 0.9rem 2.25rem;
  background: var(--col-green-accent);
  color: #fff;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: var(--radius);
  margin-top: 0.5rem;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  animation: fadeUp 0.9s 0.5s ease both;
}

.btn-primary:hover {
  background: var(--col-green-mid);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(82,183,136,0.28);
}

.hero-scroll {
  position: absolute;
  bottom: 2.25rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.25);
  z-index: 1;
  transition: color var(--transition);
  animation: fadeUp 0.9s 0.7s ease both, bounce 2.8s 1.6s ease-in-out infinite;
}

.hero-scroll:hover { color: rgba(255,255,255,0.55); }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(7px); }
}

/* =============================================
   O MNIE
   ============================================= */

.about-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}

.about-photo-col { display: flex; justify-content: flex-start; }

.photo-circle {
  width: clamp(120px, 18vw, 180px);
  aspect-ratio: 1;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  display: block;
  flex-shrink: 0;
  box-shadow: 0 0 0 6px rgba(82,183,136,0.14), var(--shadow-card);
}

.about-text-col h2 { margin-bottom: 1.5rem; }

.about-greeting {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  font-weight: 600;
  color: var(--col-green-brand);
  margin-bottom: 0.5rem;
}

.about-text-col p {
  font-size: 1rem;
  line-height: 1.78;
  color: var(--col-text);
}

.linkedin-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.75rem;
  padding: 0.6rem 1.25rem;
  border: 1.5px solid var(--col-green-accent);
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--col-green-brand);
  letter-spacing: 0.02em;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.linkedin-btn:hover {
  background: var(--col-green-accent);
  border-color: var(--col-green-accent);
  color: #fff;
}

@media (max-width: 639px) {
  .about-grid { grid-template-columns: 1fr; }
}

/* =============================================
   DLA KOGO
   ============================================= */

.clients-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.1rem;
}

.client-card {
  background: var(--col-white);
  border-left: 4px solid var(--col-green-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.5rem 1.75rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.client-card:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-card);
}

.client-icon {
  flex-shrink: 0;
  color: var(--col-green-brand);
  opacity: 0.65;
}

.client-card p {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--col-text);
  line-height: 1.4;
}

@media (max-width: 639px) {
  .clients-grid { grid-template-columns: 1fr; }
}

/* =============================================
   W CZYM POMAGAM
   ============================================= */

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
  margin-top: 2rem;
}

.service-card {
  background: var(--col-white);
  border: 1px solid var(--col-border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem 1.75rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--col-green-brand), var(--col-green-accent));
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: transparent;
}

.service-card:hover::before { opacity: 1; }

.service-num {
  display: block;
  font-family: var(--font-display);
  font-size: 3.25rem;
  line-height: 1;
  color: var(--col-green-pale);
  margin-bottom: 0.5rem;
  user-select: none;
}

.service-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--col-green-brand);
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
}

.service-lead {
  font-size: 0.88rem;
  color: var(--col-text-mid);
  line-height: 1.6;
  margin-bottom: 0.875rem;
}

.service-card ul {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.service-card ul li {
  font-size: 0.82rem;
  color: var(--col-text-mid);
  padding-left: 1.1rem;
  position: relative;
  line-height: 1.5;
}

.service-card ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--col-green-accent);
  font-size: 0.68rem;
  top: 0.2em;
}

@media (max-width: 1023px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 639px) {
  .services-grid { grid-template-columns: 1fr; }
}

/* =============================================
   JAK WSPÓŁPRACUJEMY
   ============================================= */

.steps {
  display: flex;
  align-items: flex-start;
  margin-top: 2.5rem;
}

.step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 0.75rem;
}

.step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--col-green-brand);
  color: #fff;
  font-family: var(--font-display);
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-bottom: 1.25rem;
  box-shadow: 0 4px 18px rgba(45,106,79,0.28);
}

.step-body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--col-green-brand);
  margin-bottom: 0.4rem;
}

.step-body p {
  font-size: 0.9rem;
  color: var(--col-text-mid);
  line-height: 1.65;
}

.step-line {
  flex: 0 0 clamp(1.5rem, 4vw, 3.5rem);
  height: 1px;
  background: var(--col-green-accent);
  opacity: 0.35;
  margin-top: 28px; /* aligns with center of 56px step-num */
  position: relative;
}

.step-line::after {
  content: '';
  position: absolute;
  right: -3px;
  top: -3px;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid var(--col-green-accent);
  border-top: 1.5px solid var(--col-green-accent);
  transform: rotate(45deg);
  opacity: 1;
}

@media (max-width: 639px) {
  .steps {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .step {
    flex-direction: row;
    text-align: left;
    align-items: flex-start;
    padding: 0;
    gap: 1.25rem;
    width: 100%;
  }

  .step-num {
    margin-bottom: 0;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    font-size: 1.2rem;
  }

  .step-line {
    width: 1px;
    height: 2rem;
    flex: 0 0 auto;
    align-self: flex-start;
    margin-top: 0;
    margin-left: 23px; /* (48px / 2) - (1px / 2) */
  }

  .step-line::after {
    right: auto;
    left: -3px;
    top: auto;
    bottom: -3px;
    transform: rotate(135deg);
  }
}

/* =============================================
   ARTYKUŁY
   ============================================= */

.articles-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: 0;
}

.articles-list li {
  font-size: 1rem;
  color: var(--col-text);
  padding-left: 1.6rem;
  position: relative;
  line-height: 1.65;
}

.articles-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--col-green-accent);
  font-size: 0.88rem;
}

.articles-badge {
  display: inline-block;
  margin-top: 2.25rem;
  padding: 0.5rem 1.35rem;
  border: 1px dashed rgba(45,106,79,0.4);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--col-green-brand);
  opacity: 0.65;
}

/* =============================================
   KONTAKT
   ============================================= */

.section-kontakt {
  text-align: center;
  background:
    radial-gradient(ellipse 70% 60% at 80% 40%, rgba(82,183,136,0.09) 0%, transparent 60%),
    linear-gradient(145deg, #081c10 0%, #0d2b1f 50%, #0a1e12 100%);
}

.kontakt-tagline {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.45);
  margin-top: 1.5rem;
  margin-bottom: 2.75rem;
}

.kontakt-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.kontakt-item {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2.25rem;
  border: 1px solid rgba(82,183,136,0.25);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.03);
  color: rgba(255,255,255,0.75);
  font-size: 1.05rem;
  font-weight: 500;
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
}

.kontakt-item:hover {
  background: rgba(82,183,136,0.12);
  border-color: rgba(82,183,136,0.6);
  color: #fff;
  transform: translateY(-2px);
}

.kontakt-item svg { opacity: 0.7; flex-shrink: 0; }

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

#footer {
  background: var(--col-green-deep);
  border-top: 1px solid rgba(82,183,136,0.07);
  text-align: center;
  padding: 1.5rem var(--gutter);
}

#footer p {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.28);
  letter-spacing: 0.06em;
}

/* =============================================
   SCROLL REVEAL (requires JS to add .js-ready)
   ============================================= */

.js-ready .service-card,
.js-ready .client-card {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease, box-shadow var(--transition), border-color var(--transition);
}

.js-ready .service-card:nth-child(2) { transition-delay: 0.07s; }
.js-ready .service-card:nth-child(3) { transition-delay: 0.14s; }
.js-ready .service-card:nth-child(4) { transition-delay: 0.21s; }
.js-ready .service-card:nth-child(5) { transition-delay: 0.28s; }
.js-ready .service-card:nth-child(6) { transition-delay: 0.35s; }
.js-ready .client-card:nth-child(2)  { transition-delay: 0.07s; }
.js-ready .client-card:nth-child(3)  { transition-delay: 0.14s; }
.js-ready .client-card:nth-child(4)  { transition-delay: 0.21s; }

.js-ready .service-card.is-visible,
.js-ready .client-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.js-ready .step {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.js-ready .step:nth-child(3) { transition-delay: 0.12s; }
.js-ready .step:nth-child(5) { transition-delay: 0.24s; }
.js-ready .step.is-visible   { opacity: 1; transform: translateY(0); }

.js-ready .about-grid {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.js-ready .about-grid.is-visible { opacity: 1; transform: translateY(0); }

.js-ready .articles-list,
.js-ready .articles-badge {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.js-ready .articles-badge { transition-delay: 0.15s; }
.js-ready .articles-list.is-visible,
.js-ready .articles-badge.is-visible { opacity: 1; transform: translateY(0); }

/* =============================================
   REDUCED MOTION
   ============================================= */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}