/* ============================================================
   /bezplatny-ebook — landing page styles (Nebula brand)
   ============================================================ */

.ebook-main { padding-top: 0; }

.ebook-main .accent { color: #f472b6; font-weight: 900; }

/* HERO — pełna wysokość, padding-top z miejscem na fixed nav */
.ebook-hero {
  position: relative;
  min-height: 100vh;
  padding: 130px 32px 80px;
  overflow: hidden;
}
.ebook-hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 15% 10%, rgba(34,211,238,0.45) 0%, transparent 55%),
    radial-gradient(ellipse 90% 80% at 92% 70%, rgba(236,72,153,0.45) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 50% 100%, rgba(99,102,241,0.5) 0%, transparent 55%),
    radial-gradient(ellipse 70% 60% at 50% 30%, rgba(139,92,246,0.3) 0%, transparent 55%),
    linear-gradient(135deg, #14081f 0%, #0a0612 50%, #1a0820 100%);
  z-index: 0;
  pointer-events: none;
}
.ebook-hero-grid {
  position: relative;
  z-index: 2;
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}

.ebook-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.18);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  margin-bottom: 28px;
}
.ebook-eyebrow .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, #22d3ee, #ec4899);
  box-shadow: 0 0 12px rgba(236,72,153,0.7);
}

.ebook-h1 {
  font-size: clamp(38px, 5.2vw, 64px);
  font-weight: 900;
  line-height: 0.96;
  letter-spacing: -0.04em;
  margin: 0 0 24px;
  color: #fff;
}

.ebook-subhead {
  font-size: clamp(15px, 1.4vw, 18px);
  line-height: 1.55;
  color: rgba(255,255,255,0.78);
  max-width: 560px;
  margin: 0 0 32px;
}

.ebook-stats {
  display: flex;
  gap: 18px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.ebook-stat {
  padding: 14px 18px;
  border-radius: 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
}
.ebook-stat .n {
  font-weight: 900;
  font-size: 26px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: #f472b6;
  display: block;
}
.ebook-stat .l {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-top: 6px;
  display: block;
}

/* FORM */
.ebook-form {
  background: rgba(255,255,255,0.04);
  border: 1.5px solid rgba(255,255,255,0.15);
  border-radius: 16px;
  padding: 24px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  max-width: 540px;
}
.ebook-form-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #67e8f9;
  margin-bottom: 8px;
}
.ebook-form-title {
  font-size: 19px;
  font-weight: 800;
  margin: 0 0 14px;
  letter-spacing: -0.01em;
  color: #fff;
}
.ebook-form-row { display: flex; gap: 10px; flex-wrap: wrap; }
.ebook-form-input {
  flex: 1 1 240px;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(0,0,0,0.3);
  border: 1.5px solid rgba(255,255,255,0.15);
  color: #fff;
  font-size: 15px;
  font-family: inherit;
  transition: border-color 0.2s, background 0.2s;
}
.ebook-form-input::placeholder { color: rgba(255,255,255,0.4); }
.ebook-form-input:focus {
  outline: none;
  border-color: #67e8f9;
  background: rgba(0,0,0,0.5);
}
.ebook-form-input.invalid { border-color: #fca5a5; background: rgba(239,68,68,0.08); }
.ebook-form-submit {
  padding: 14px 22px;
  border-radius: 12px;
  background: linear-gradient(135deg, #22d3ee, #8b5cf6, #ec4899);
  color: #07070a;
  border: none;
  font-weight: 800;
  font-size: 15px;
  cursor: pointer;
  font-family: inherit;
  letter-spacing: -0.01em;
  transition: transform 0.15s, box-shadow 0.2s, opacity 0.2s;
  box-shadow: 0 8px 30px rgba(139,92,246,0.35);
}
.ebook-form-submit:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 12px 40px rgba(139,92,246,0.5);
}
.ebook-form-submit:disabled { opacity: 0.6; cursor: progress; }
.ebook-form-trust {
  margin-top: 12px;
  font-size: 12px;
  color: rgba(255,255,255,0.55);
  line-height: 1.5;
}
.ebook-form-trust b { color: #f9a8d4; }
.ebook-form-error {
  margin-top: 10px;
  padding: 10px 12px;
  background: rgba(239,68,68,0.12);
  border: 1px solid rgba(239,68,68,0.35);
  border-radius: 8px;
  font-size: 12.5px;
  color: #fca5a5;
  line-height: 1.45;
}
.ebook-form-success {
  margin-top: 10px;
  padding: 10px 12px;
  background: rgba(34,197,94,0.12);
  border: 1px solid rgba(34,197,94,0.4);
  border-radius: 8px;
  font-size: 12.5px;
  color: #86efac;
}

/* 3D BOOK */
.book-stage {
  perspective: 1100px;
  perspective-origin: 50% 35%;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 30px 20px;
  min-height: 540px;
  position: relative;
}
.book-floor-shadow {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 320px;
  height: 50px;
  background: radial-gradient(ellipse, rgba(0,0,0,0.6) 0%, transparent 70%);
  filter: blur(20px);
  z-index: 0;
}
.book-3d {
  --bw: 280px;
  --bh: 400px;
  --bt: 50px;
  width: var(--bw);
  height: var(--bh);
  position: relative;
  transform-style: preserve-3d;
  transform: rotateY(36deg) rotateX(5deg);
  animation: bookFloat 6s ease-in-out infinite;
}
.book-stage:hover .book-3d {
  transform: rotateY(22deg) rotateX(3deg);
  transition: transform 0.6s cubic-bezier(0.2,0.7,0.2,1);
}
@keyframes bookFloat {
  0%, 100% { transform: rotateY(36deg) rotateX(5deg) translateY(0); }
  50% { transform: rotateY(36deg) rotateX(5deg) translateY(-14px); }
}

.book-3d > * { position: absolute; }
.b-front, .b-back, .b-spine, .b-top { top: 0; left: 0; }
.b-pages { top: 0; left: calc(var(--bw) - var(--bt)); }
.b-bottom { top: calc(var(--bh) - var(--bt)); left: 0; }

.b-front {
  width: var(--bw);
  height: var(--bh);
  background: url("/ebooks/cover.png") center/cover, #0a0612;
  background-size: cover;
  border-radius: 2px 4px 4px 2px;
  box-shadow:
    inset 8px 0 18px rgba(0,0,0,0.45),
    inset -2px 0 6px rgba(0,0,0,0.15),
    inset 0 0 0 1px rgba(255,255,255,0.06);
}
.b-front::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(125deg, rgba(255,255,255,0.18) 0%, transparent 30%, transparent 70%, rgba(0,0,0,0.2) 100%);
  pointer-events: none;
  border-radius: inherit;
}

.b-back {
  width: var(--bw);
  height: var(--bh);
  background:
    radial-gradient(ellipse 80% 60% at 70% 80%, rgba(99,102,241,0.3) 0%, transparent 55%),
    linear-gradient(135deg, #160a22 0%, #07050e 80%);
  border-radius: 4px 2px 2px 4px;
  transform: translateZ(calc(var(--bt) * -1));
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.05);
}

.b-spine {
  width: var(--bt);
  height: var(--bh);
  background: linear-gradient(to right, #07050e 0%, #1d0e2e 35%, #2a1340 70%, #3a1c54 100%);
  transform-origin: 0 50%;
  transform: rotateY(90deg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,0.08),
    inset 6px 0 16px rgba(0,0,0,0.4);
  backface-visibility: visible;
}
.b-spine::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.08) 0%, transparent 30%, transparent 70%, rgba(0,0,0,0.25) 100%);
  pointer-events: none;
}
.b-spine .spine-text {
  transform: rotate(-90deg) scaleX(-1);
  white-space: nowrap;
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 1.5px;
  color: rgba(255,255,255,0.95);
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}
.b-spine .spine-text .accent { color: #f472b6; }

.b-pages {
  width: var(--bt);
  height: var(--bh);
  background:
    repeating-linear-gradient(180deg, #fdfaf2 0px, #fdfaf2 0.6px, #ece2cd 0.6px, #ece2cd 1.4px),
    linear-gradient(180deg, #fdfaf2 0%, #f0e6d2 100%);
  transform-origin: 100% 50%;
  transform: rotateY(-90deg);
  box-shadow: inset 6px 0 14px rgba(0,0,0,0.18), inset -2px 0 4px rgba(0,0,0,0.1);
  backface-visibility: visible;
}
.b-top {
  width: var(--bw);
  height: var(--bt);
  background:
    repeating-linear-gradient(90deg, #fdfaf2 0px, #fdfaf2 0.6px, #ece2cd 0.6px, #ece2cd 1.4px),
    linear-gradient(90deg, #fdfaf2 0%, #f0e6d2 100%);
  transform-origin: 50% 0;
  transform: rotateX(-90deg);
  box-shadow: inset 0 6px 14px rgba(0,0,0,0.16);
  backface-visibility: visible;
}
.b-bottom {
  width: var(--bw);
  height: var(--bt);
  background:
    repeating-linear-gradient(90deg, #fdfaf2 0px, #fdfaf2 0.6px, #ece2cd 0.6px, #ece2cd 1.4px),
    linear-gradient(90deg, #fdfaf2 0%, #f0e6d2 100%);
  transform-origin: 50% 100%;
  transform: rotateX(90deg);
  box-shadow: inset 0 -6px 14px rgba(0,0,0,0.16);
  backface-visibility: visible;
}

.book-tag {
  position: absolute;
  top: 40px;
  right: -22px;
  padding: 8px 18px;
  background: linear-gradient(135deg, #22d3ee, #ec4899);
  color: #07070a;
  border-radius: 999px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  box-shadow: 0 8px 24px rgba(236,72,153,0.45);
  transform: translateZ(60px) rotate(8deg);
  z-index: 20;
}
.book-glow {
  position: absolute;
  width: 70%;
  height: 60px;
  bottom: -20px;
  left: 15%;
  background: radial-gradient(ellipse, rgba(139,92,246,0.55) 0%, transparent 70%);
  filter: blur(28px);
  z-index: -1;
  pointer-events: none;
}

/* SECTIONS */
.ebook-section { padding: 100px 32px; position: relative; }
.ebook-section .container { max-width: 1240px; margin: 0 auto; }
.ebook-section-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2.4px;
  text-transform: uppercase;
  color: #f9a8d4;
  margin-bottom: 16px;
  text-align: center;
}
.ebook-section-title {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.04em;
  text-align: center;
  margin: 0 0 18px;
  color: #fff;
}
.ebook-section-sub {
  text-align: center;
  font-size: 17px;
  line-height: 1.5;
  color: rgba(255,255,255,0.78);
  max-width: 720px;
  margin: 0 auto 64px;
}

/* LESSONS */
.ebook-lessons {
  background:
    radial-gradient(ellipse 60% 50% at 0% 30%, rgba(34,211,238,0.12) 0%, transparent 50%),
    radial-gradient(ellipse 60% 50% at 100% 70%, rgba(236,72,153,0.12) 0%, transparent 50%),
    #0a0612;
}
.lessons-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.lesson-card {
  padding: 24px 24px 22px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px;
  transition: transform 0.2s, border-color 0.2s, background 0.2s;
}
.lesson-card:hover {
  transform: translateY(-3px);
  border-color: rgba(34,211,238,0.5);
  background: rgba(255,255,255,0.06);
}
.lesson-num {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 2px;
  color: #67e8f9;
  margin-bottom: 8px;
}
.lesson-card h4 {
  font-size: 17px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.015em;
  margin: 0 0 10px;
  color: #fff;
}
.lesson-card p {
  font-size: 13.5px;
  line-height: 1.5;
  color: rgba(255,255,255,0.7);
  margin: 0;
}

/* INSIDE */
.ebook-inside { background: linear-gradient(180deg, #0a0612 0%, #0d0820 100%); }
.inside-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.inside-card {
  padding: 30px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
}
.inside-card .icon-circle {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(34,211,238,0.2), rgba(139,92,246,0.2));
  border: 1px solid rgba(255,255,255,0.15);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
  font-size: 22px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 800;
  color: #67e8f9;
}
.inside-card h3 {
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 10px;
  letter-spacing: -0.02em;
  color: #fff;
}
.inside-card p { font-size: 14px; line-height: 1.55; color: rgba(255,255,255,0.78); margin: 0; }

/* FOR WHO */
.ebook-forwho {
  background:
    radial-gradient(ellipse 60% 60% at 20% 50%, rgba(139,92,246,0.18) 0%, transparent 55%),
    radial-gradient(ellipse 60% 60% at 80% 50%, rgba(34,211,238,0.18) 0%, transparent 55%),
    #0a0612;
}
.forwho-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.forwho-card {
  padding: 36px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 16px;
}
.forwho-card.yes { border-color: rgba(34,211,238,0.35); background: rgba(34,211,238,0.06); }
.forwho-card.no { border-color: rgba(236,72,153,0.35); background: rgba(236,72,153,0.06); }
.forwho-card h3 {
  display: flex; align-items: center; gap: 12px;
  font-size: 22px; font-weight: 800;
  margin: 0 0 18px; letter-spacing: -0.02em;
  color: #fff;
}
.forwho-card.yes h3 .pill { background: rgba(34,211,238,0.2); color: #67e8f9; }
.forwho-card.no h3 .pill { background: rgba(236,72,153,0.2); color: #f9a8d4; }
.forwho-card .pill {
  padding: 4px 12px; border-radius: 999px;
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
}
.forwho-list { padding: 0; margin: 0; list-style: none; }
.forwho-list li {
  padding: 12px 0 12px 28px;
  position: relative;
  font-size: 15px;
  line-height: 1.5;
  color: rgba(255,255,255,0.85);
  border-bottom: 1px dotted rgba(255,255,255,0.1);
}
.forwho-list li:last-child { border-bottom: none; }
.forwho-list li::before {
  position: absolute;
  left: 0; top: 12px;
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 12px;
  color: #07070a;
}
.forwho-card.yes li::before { content: '✓'; background: linear-gradient(135deg, #22d3ee, #8b5cf6); }
.forwho-card.no li::before { content: '×'; background: rgba(236,72,153,0.7); color: #fff; }

/* AUTHOR */
.ebook-author { background: linear-gradient(180deg, #0a0612 0%, #110a22 100%); }
.author-card {
  max-width: 880px;
  margin: 0 auto;
  padding: 44px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 20px;
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 32px;
  align-items: center;
}
.author-avatar {
  width: 140px; height: 140px;
  border-radius: 50%;
  background: linear-gradient(135deg, #22d3ee, #8b5cf6, #ec4899);
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 48px;
  color: #07070a;
  letter-spacing: -2px;
}
.author-text h3 {
  font-size: 26px; font-weight: 800;
  margin: 0 0 6px; letter-spacing: -0.02em;
  color: #fff;
}
.author-text .role {
  font-family: 'JetBrains Mono', monospace; font-size: 12px;
  font-weight: 700; letter-spacing: 2px; text-transform: uppercase;
  color: #f9a8d4; margin: 0 0 16px;
}
.author-text p { font-size: 15px; line-height: 1.55; color: rgba(255,255,255,0.85); margin: 0; }

/* CTA FINAL */
.ebook-cta-final {
  padding: 120px 32px;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(236,72,153,0.3) 0%, transparent 55%),
    radial-gradient(ellipse 80% 60% at 50% 100%, rgba(34,211,238,0.3) 0%, transparent 55%),
    linear-gradient(180deg, #110a22 0%, #0a0612 100%);
  text-align: center;
}
.ebook-cta-h {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
  margin: 0 0 18px;
  color: #fff;
}
.ebook-cta-h .accent { color: #f472b6; }
.ebook-cta-sub {
  font-size: 18px; color: rgba(255,255,255,0.78);
  max-width: 620px; margin: 0 auto 40px; line-height: 1.5;
}
.ebook-cta-final .ebook-form { max-width: 540px; margin: 0 auto; text-align: left; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .ebook-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .book-3d { --bw: 220px; --bh: 320px; --bt: 36px; }
  .lessons-grid { grid-template-columns: 1fr; }
  .inside-grid { grid-template-columns: 1fr; }
  .forwho-grid { grid-template-columns: 1fr; }
  .author-card { grid-template-columns: 1fr; text-align: center; }
  .author-avatar { margin: 0 auto; }
  .ebook-section { padding: 70px 20px; }
  .ebook-hero { padding: 40px 20px 60px; }
}