/* ================================================
   AWS eBOOK — LANDING PAGE STYLES
   Theme: Industrial Retro-Futuristic · Orange/Silver/Charcoal
   ================================================ */

:root {
  --orange:         #FF8C00;
  --orange-bright:  #FFA500;
  --orange-dim:     #CC6A00;
  --orange-glow:    rgba(255,140,0,0.5);
  --orange-glow-sm: rgba(255,140,0,0.2);
  --silver:         #C0C0C0;
  --silver-light:   #E8E8E8;
  --silver-dim:     #888;
  --grey-bg:        #0D0D0D;
  --grey-dark:      #111;
  --grey-mid:       #1E1E1E;
  --grey-card:      #252525;
  --grey-border:    #333;
  --text-primary:   #F0F0F0;
  --text-muted:     #888;
  --font-display:   'Rajdhani', sans-serif;
  --font-mono:      'Share Tech Mono', monospace;
  --font-body:      'Source Sans 3', sans-serif;
}

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

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
}

body {
  background: var(--grey-bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  position: relative;
  cursor: none;
}

/* ── Custom Cursor ── */
body::before {
  content: '';
  position: fixed;
  width: 20px; height: 20px;
  border: 1.5px solid var(--orange);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 9999;
  transition: transform 0.1s ease, opacity 0.2s ease;
  left: var(--cx, 50%);
  top:  var(--cy, 50%);
}

/* ── Scanlines ── */
.scanlines {
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(0,0,0,0.07) 3px,
    rgba(0,0,0,0.07) 4px
  );
  pointer-events: none;
  z-index: 998;
}

/* ── Grain ── */
.grain {
  position: fixed;
  inset: -200%;
  width: 400%; height: 400%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='https://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 997;
  animation: grainShift 0.5s steps(1) infinite;
  opacity: 0.5;
}

@keyframes grainShift {
  0%   { transform: translate(0, 0); }
  25%  { transform: translate(-2%, -3%); }
  50%  { transform: translate(3%, 1%); }
  75%  { transform: translate(-1%, 2%); }
  100% { transform: translate(2%, -1%); }
}

/* ── Particles ── */
#particles-js {
  position: fixed;
  inset: 0;
  z-index: 0;
}

/* ── Corner HUD Decorations ── */
.corner {
  position: fixed;
  width: 28px; height: 28px;
  z-index: 100;
  opacity: 0.6;
}

.corner-tl { top: 16px; left: 16px;  border-top: 2px solid var(--orange); border-left: 2px solid var(--orange); }
.corner-tr { top: 16px; right: 16px; border-top: 2px solid var(--orange); border-right: 2px solid var(--orange); }
.corner-bl { bottom: 16px; left: 16px;  border-bottom: 2px solid var(--orange); border-left: 2px solid var(--orange); }
.corner-br { bottom: 16px; right: 16px; border-bottom: 2px solid var(--orange); border-right: 2px solid var(--orange); }

/* ── HUD Lines ── */
.hud-line {
  position: fixed;
  left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--orange-dim) 30%, var(--orange) 50%, var(--orange-dim) 70%, transparent 100%);
  opacity: 0.15;
  z-index: 100;
}

.hud-top    { top: 50px; }
.hud-bottom { bottom: 50px; }

/* ── Landing Container ── */
.landing {
  position: relative;
  z-index: 10;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  gap: clamp(14px, 2.5vh, 28px);
  text-align: center;
}

/* ── Status Bar ── */
.status-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(30,30,30,0.7);
  border: 1px solid var(--grey-border);
  border-radius: 4px;
  padding: 6px 16px;
  font-family: var(--font-mono);
  font-size: clamp(9px, 1.5vw, 11px);
  color: var(--text-muted);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
  opacity: 0;
  transform: translateY(-10px);
  animation: revealDown 0.6s ease 0.3s forwards;
  min-width: min(380px, 90vw);
  max-width: 90vw;
}

.status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 8px var(--orange-glow);
  flex-shrink: 0;
  animation: blink 1.4s ease infinite;
}

@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }

.status-text { flex: 1; color: var(--silver-dim); }
.status-spacer { flex: 1; }
.status-code { color: var(--orange); font-weight: 600; }

/* ── Logo ── */
.logo-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  animation: revealScale 0.8s cubic-bezier(.22,.88,.22,1) 0.6s forwards;
}

.logo-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--orange-dim);
  opacity: 0;
  animation: ringPulse 3s ease infinite;
}

.ring-1 { width: 180px; height: 180px; animation-delay: 0s; }
.ring-2 { width: 230px; height: 230px; animation-delay: 0.7s; }
.ring-3 { width: 280px; height: 280px; animation-delay: 1.4s; }

@keyframes ringPulse {
  0%   { opacity: 0.5; transform: scale(0.88); }
  50%  { opacity: 0; transform: scale(1.08); }
  100% { opacity: 0; transform: scale(1.2); }
}

.aws-logo {
  width: clamp(100px, 18vw, 160px);
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 0 20px var(--orange-glow));
  animation: floatLogo 4s ease-in-out infinite 1.5s, rotateSlow 12s linear infinite 1.5s;
  cursor: pointer;
  transition: filter 0.3s ease;
}

.aws-logo:hover {
  filter: drop-shadow(0 0 35px var(--orange-glow)) brightness(1.15);
}

@keyframes floatLogo {
  0%, 100% { transform: translateY(0) rotateY(0deg); }
  50%       { transform: translateY(-10px) rotateY(180deg); }
}

@keyframes rotateSlow {
  from { transform: rotateY(0deg); }
  to   { transform: rotateY(360deg); }
}

/* ── Title Block ── */
.title-block {
  opacity: 0;
  animation: revealUp 0.8s ease 0.9s forwards;
}

.pre-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 8px;
}

.pre-line {
  height: 1px;
  width: clamp(30px, 8vw, 70px);
  background: linear-gradient(90deg, transparent, var(--orange-dim));
}

.pre-line:last-child {
  background: linear-gradient(270deg, transparent, var(--orange-dim));
}

.pre-label {
  font-family: var(--font-mono);
  font-size: clamp(9px, 1.8vw, 12px);
  letter-spacing: 3px;
  color: var(--orange-dim);
  text-transform: uppercase;
}

.main-title {
  font-family: var(--font-display);
  font-size: clamp(52px, 14vw, 120px);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -2px;
}

.title-aws {
  background: linear-gradient(135deg, var(--orange-bright) 0%, #FFD700 50%, var(--orange-dim) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 25px var(--orange-glow));
  display: inline-block;
}

.title-suffix {
  display: block;
  font-size: clamp(20px, 5vw, 42px);
  font-weight: 400;
  letter-spacing: 12px;
  text-transform: uppercase;
  color: var(--silver-dim);
  margin-top: 4px;
}

/* Typewriter cursor */
.cursor-blink {
  display: inline-block;
  width: 4px;
  height: 0.8em;
  background: var(--orange);
  margin-left: 4px;
  vertical-align: middle;
  animation: cursorBlink 0.8s step-end infinite;
}

@keyframes cursorBlink { 0%,100%{opacity:1} 50%{opacity:0} }

.tagline {
  margin-top: 14px;
  font-size: clamp(13px, 2.5vw, 17px);
  font-weight: 300;
  color: var(--silver-dim);
  letter-spacing: 1px;
}

/* ── Stats Row ── */
.stats-row {
  display: flex;
  align-items: center;
  gap: 16px;
  opacity: 0;
  animation: revealUp 0.7s ease 1.2s forwards;
}

.stat-pill {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.stat-num {
  font-family: var(--font-display);
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 700;
  color: var(--orange-bright);
  line-height: 1;
}

.stat-lbl {
  font-family: var(--font-mono);
  font-size: clamp(9px, 1.5vw, 11px);
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.stat-sep {
  color: var(--orange-dim);
  font-size: 8px;
  opacity: 0.5;
}

/* ── CTA Button ── */
.btn-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  opacity: 0;
  animation: revealUp 0.7s ease 1.5s forwards;
}

.enter-btn {
  position: relative;
  padding: 0;
  width: clamp(200px, 40vw, 260px);
  height: clamp(52px, 8vw, 64px);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  overflow: hidden;
  outline: none;
  background: transparent;
}

.btn-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--orange-dim) 0%, var(--orange) 50%, var(--orange-bright) 100%);
  transition: opacity 0.3s ease;
  border-radius: 6px;
}

.btn-shine {
  position: absolute;
  top: 0; left: -120%;
  width: 60%; height: 100%;
  background: linear-gradient(105deg, transparent 30%, rgba(255,255,255,0.25) 50%, transparent 70%);
  transform: skewX(-20deg);
  transition: none;
  border-radius: 6px;
}

.enter-btn:hover .btn-shine {
  animation: btnShine 0.6s ease forwards;
}

@keyframes btnShine {
  to { left: 160%; }
}

.btn-border-anim {
  position: absolute;
  inset: -2px;
  border-radius: 8px;
  background: conic-gradient(from 0deg, var(--orange), var(--orange-dim), transparent, var(--orange));
  animation: borderSpin 3s linear infinite;
  z-index: -1;
  opacity: 0.6;
}

@keyframes borderSpin { to { transform: rotate(360deg); } }

.btn-content {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: clamp(16px, 3vw, 20px);
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: #fff;
}

.btn-icon {
  font-size: 12px;
  animation: iconPulse 1.5s ease infinite;
}

@keyframes iconPulse { 0%,100%{transform:translateX(0)} 50%{transform:translateX(4px)} }

.enter-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px var(--orange-glow), 0 0 0 1px rgba(255,140,0,0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.enter-btn:active {
  transform: translateY(0) scale(0.97);
  box-shadow: 0 4px 20px var(--orange-glow);
  transition: all 0.1s ease;
}

.btn-hint {
  font-family: var(--font-mono);
  font-size: clamp(9px, 1.5vw, 11px);
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0.6;
  animation: fadePulse 2s ease infinite;
}

@keyframes fadePulse { 0%,100%{opacity:0.6} 50%{opacity:0.3} }

/* ── Tech Tags ── */
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  max-width: min(500px, 90vw);
  opacity: 0;
  animation: revealUp 0.7s ease 1.8s forwards;
}

.tag {
  font-family: var(--font-mono);
  font-size: clamp(9px, 1.5vw, 11px);
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--silver-dim);
  border: 1px solid var(--grey-border);
  padding: 4px 12px;
  border-radius: 2px;
  background: rgba(255,255,255,0.03);
  transition: all 0.3s ease;
  cursor: default;
}

.tag:hover {
  color: var(--orange);
  border-color: var(--orange-dim);
  background: rgba(255,140,0,0.08);
  box-shadow: 0 0 12px rgba(255,140,0,0.15);
  transform: translateY(-2px);
}

/* ── Loading Overlay ── */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: var(--grey-bg);
  z-index: 9990;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.loading-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.loading-bar-wrap {
  width: min(360px, 85vw);
  text-align: center;
}

.loading-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--orange);
  margin-bottom: 16px;
  animation: blink 0.8s step-end infinite;
}

.loading-bar {
  width: 100%;
  height: 2px;
  background: var(--grey-mid);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 10px;
}

.loading-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--orange-dim), var(--orange-bright));
  box-shadow: 0 0 10px var(--orange-glow);
  transition: width 0.05s linear;
}

.loading-pct {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--silver-dim);
}

/* ── Fade-out transition ── */
.fade-out {
  animation: fadeOut 0.5s ease forwards;
}

@keyframes fadeOut {
  to { opacity: 0; transform: scale(1.03); }
}

/* ── Reveal Keyframes ── */
@keyframes revealDown {
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes revealScale {
  from { opacity: 0; transform: scale(0.8); }
  to   { opacity: 1; transform: scale(1); }
}

/* ── Mobile Responsive ── */
@media (max-width: 480px) {
  .landing { gap: 12px; padding: 16px; }
  .logo-ring { display: none; }
  .stats-row { gap: 12px; }
  .title-suffix { letter-spacing: 6px; }
  .corner { width: 18px; height: 18px; }
  .hud-line { display: none; }
}

@media (max-height: 600px) {
  .landing { justify-content: flex-start; padding-top: 60px; }
  .aws-logo { width: 80px; }
  .logo-ring { display: none; }
  .tech-tags { display: none; }
}

/* Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--grey-dark); }
::-webkit-scrollbar-thumb { background: var(--grey-border); border-radius: 3px; }