/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #07080f;
  --bg2: #0d0f1e;
  --glass: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.08);
  --accent: #7c5cfc;
  --accent2: #00d4ff;
  --accent3: #f72585;
  --text: #e8eaf6;
  --text-muted: #8890b0;
  --card-bg: rgba(255,255,255,0.03);
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 40px rgba(0,0,0,0.4);
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(7,8,15,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 0 2rem;
  height: 64px;
}
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; gap: 2rem; height: 100%;
}
.logo { display: flex; align-items: center; gap: 8px; }
.logo-icon { font-size: 1.4rem; }
.logo-text { font-size: 1.2rem; font-weight: 700; letter-spacing: -0.5px; }
.accent { background: linear-gradient(135deg, var(--accent), var(--accent2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; gap: 2rem; list-style: none; margin-left: auto; }
.nav-links a { color: var(--text-muted); font-size: 0.9rem; font-weight: 500; transition: color var(--transition); }
.nav-links a:hover { color: var(--text); }
.nav-badge {
  font-size: 0.75rem; font-weight: 600;
  background: linear-gradient(135deg, rgba(124,92,252,0.2), rgba(0,212,255,0.2));
  border: 1px solid rgba(124,92,252,0.3);
  color: var(--accent2);
  padding: 4px 12px; border-radius: 20px;
}

/* ===== HERO ===== */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 100px 2rem 60px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 60% at 20% 40%, rgba(124,92,252,0.18) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at 80% 60%, rgba(0,212,255,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 50% 90%, rgba(247,37,133,0.1) 0%, transparent 60%);
  animation: bgPulse 8s ease-in-out infinite alternate;
}
@keyframes bgPulse {
  from { opacity: 0.8; }
  to { opacity: 1; }
}
.hero-content {
  position: relative; z-index: 2;
  text-align: center; max-width: 680px;
}
.hero-tag {
  display: inline-block;
  background: rgba(124,92,252,0.15);
  border: 1px solid rgba(124,92,252,0.3);
  color: var(--accent2);
  font-size: 0.8rem; font-weight: 600;
  padding: 6px 16px; border-radius: 20px;
  margin-bottom: 1.5rem;
  animation: fadeDown 0.8s ease;
}
.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 1.2rem;
  animation: fadeDown 0.9s ease;
}
.gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--accent2), var(--accent3));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-sub {
  color: var(--text-muted); font-size: 1.1rem; line-height: 1.7;
  margin-bottom: 2rem;
  animation: fadeDown 1s ease;
}
.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  color: white; font-weight: 600; font-size: 1rem;
  padding: 14px 32px; border-radius: 12px;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 30px rgba(124,92,252,0.4);
  animation: fadeDown 1.1s ease;
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 40px rgba(124,92,252,0.6); }

/* FLOATING CARDS */
.hero-cards { position: absolute; inset: 0; pointer-events: none; z-index: 1; }
.floating-card {
  position: absolute;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  padding: 10px 18px; border-radius: 12px;
  font-size: 0.85rem; font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  animation: float 6s ease-in-out infinite;
}
.c1 { top: 20%; left: 5%; animation-delay: 0s; }
.c2 { top: 35%; right: 6%; animation-delay: 1s; }
.c3 { bottom: 35%; left: 8%; animation-delay: 2s; }
.c5 { top: 55%; left: 3%; animation-delay: 1.5s; }
.c6 { top: 15%; right: 8%; animation-delay: 0.5s; }
.c7 { bottom: 25%; right: 5%; animation-delay: 2.5s; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== SECTIONS ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 { font-size: 2.2rem; font-weight: 800; letter-spacing: -1px; margin-bottom: 0.5rem; }
.section-header p { color: var(--text-muted); font-size: 1rem; }

/* ===== TOOLS GRID ===== */
.tools-section { padding: 80px 0; }
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}
.tool-card {
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  cursor: pointer;
  transition: transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
  position: relative; overflow: hidden;
}
.tool-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(124,92,252,0.1), transparent);
  opacity: 0; transition: opacity var(--transition);
}
.tool-card:hover { transform: translateY(-6px); border-color: rgba(124,92,252,0.4); box-shadow: 0 12px 40px rgba(124,92,252,0.2); }
.tool-card:hover::before { opacity: 1; }
.tool-icon { font-size: 2.5rem; margin-bottom: 1rem; display: block; }
.tool-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.5rem; }
.tool-card p { color: var(--text-muted); font-size: 0.875rem; line-height: 1.5; margin-bottom: 1rem; }
.tool-tag {
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px;
  background: rgba(124,92,252,0.15); color: var(--accent2);
  padding: 3px 10px; border-radius: 20px; border: 1px solid rgba(0,212,255,0.2);
}
.new-tag {
  background: rgba(0,212,120,0.15);
  color: #00d478;
  border-color: rgba(0,212,120,0.3);
  animation: newPulse 2s ease-in-out infinite;
}
@keyframes newPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0,212,120,0); }
  50% { box-shadow: 0 0 0 4px rgba(0,212,120,0.15); }
}

/* ===== TOOL PANELS ===== */
.tool-panels { display: none; }
.tool-panels.active { display: block; }
.panel { display: none; padding: 100px 2rem 60px; max-width: 860px; margin: 0 auto; }
.panel.active { display: block; animation: slideIn 0.4s ease; }
@keyframes slideIn {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.panel-header { margin-bottom: 2rem; }
.back-btn {
  background: var(--glass); border: 1px solid var(--glass-border);
  color: var(--text-muted); padding: 8px 16px; border-radius: 8px;
  cursor: pointer; font-size: 0.875rem; font-weight: 500;
  transition: all var(--transition); margin-bottom: 1.2rem;
  display: inline-flex; align-items: center; gap: 6px;
}
.back-btn:hover { color: var(--text); border-color: var(--accent); }
.panel-header h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 0.4rem; }
.panel-header p { color: var(--text-muted); font-size: 0.95rem; }

/* ===== DROP ZONE ===== */
.drop-zone {
  border: 2px dashed rgba(124,92,252,0.3);
  border-radius: var(--radius);
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  background: rgba(124,92,252,0.03);
  margin-bottom: 1.5rem;
}
.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--accent);
  background: rgba(124,92,252,0.08);
  transform: scale(1.01);
}
.drop-icon { font-size: 3rem; margin-bottom: 1rem; }
.drop-text { font-size: 1rem; font-weight: 500; margin-bottom: 0.4rem; }
.drop-hint { color: var(--text-muted); font-size: 0.8rem; }
.link { color: var(--accent2); text-decoration: underline; }

/* ===== FILE LIST ===== */
.file-list { display: flex; flex-direction: column; gap: 0.6rem; margin-bottom: 1.5rem; }
.file-item {
  display: flex; align-items: center; gap: 12px;
  background: var(--card-bg); border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm); padding: 10px 16px;
  animation: fadeIn 0.3s ease;
}
.file-item .fi-icon { font-size: 1.4rem; }
.file-item .fi-name { flex: 1; font-size: 0.9rem; font-weight: 500; }
.file-item .fi-size { color: var(--text-muted); font-size: 0.8rem; }
.fi-remove {
  background: none; border: none; color: var(--text-muted);
  cursor: pointer; font-size: 1.1rem; padding: 0 4px;
  transition: color var(--transition);
}
.fi-remove:hover { color: var(--accent3); }
.fi-move { cursor: grab; color: var(--text-muted); font-size: 1rem; }

/* ===== ACTION BAR ===== */
.action-bar { margin-bottom: 1.5rem; }
.btn-action {
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  color: white; border: none; font-size: 1rem; font-weight: 700;
  padding: 14px 32px; border-radius: 12px; cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 20px rgba(124,92,252,0.35);
}
.btn-action:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(124,92,252,0.55); }
.btn-action:disabled { opacity: 0.4; cursor: not-allowed; }

/* ===== PROGRESS ===== */
.progress-wrap { margin-bottom: 1.5rem; }
.progress-bar {
  height: 6px; background: rgba(255,255,255,0.08);
  border-radius: 3px; overflow: hidden; margin-bottom: 8px;
}
.progress-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 3px;
  transition: width 0.4s ease;
}
.progress-label { color: var(--text-muted); font-size: 0.85rem; }

/* ===== RESULT ===== */
.result-area { display: flex; flex-direction: column; gap: 0.8rem; }
.result-item {
  display: flex; align-items: center; gap: 12px;
  background: rgba(0,212,255,0.05); border: 1px solid rgba(0,212,255,0.2);
  border-radius: var(--radius-sm); padding: 12px 16px;
  animation: fadeIn 0.3s ease;
}
.result-item .ri-icon { font-size: 1.5rem; }
.result-item .ri-name { flex: 1; font-size: 0.9rem; font-weight: 500; }
.btn-preview {
  background: rgba(124,92,252,0.18);
  border: 1px solid rgba(124,92,252,0.4);
  color: #a78bfa; font-size: 0.8rem; font-weight: 700;
  padding: 8px 14px; border-radius: 8px; cursor: pointer;
  transition: all var(--transition); margin-right: 6px;
}
.btn-preview:hover { background: rgba(124,92,252,0.35); transform: translateY(-1px); }
.btn-download {
  background: linear-gradient(135deg, var(--accent2), #00a8cc);
  color: #07080f; border: none; font-size: 0.8rem; font-weight: 700;
  padding: 8px 16px; border-radius: 8px; cursor: pointer;
  transition: all var(--transition);
}
.btn-download:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(0,212,255,0.4); }
.btn-download-all {
  margin-top: 0.5rem;
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  color: white; border: none; font-size: 0.9rem; font-weight: 700;
  padding: 12px 24px; border-radius: 10px; cursor: pointer;
  transition: all var(--transition); width: fit-content;
}
.btn-download-all:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(124,92,252,0.5); }

/* ===== OPTIONS ===== */
.option-group { margin-bottom: 1.2rem; }
.option-label { font-size: 0.85rem; font-weight: 600; color: var(--text-muted); margin-bottom: 0.6rem; display: block; }
.radio-group { display: flex; flex-wrap: wrap; gap: 0.8rem; }
.radio-group label {
  display: flex; align-items: center; gap: 8px;
  background: var(--card-bg); border: 1px solid var(--glass-border);
  padding: 8px 16px; border-radius: 8px; cursor: pointer;
  font-size: 0.875rem; transition: all var(--transition);
}
.radio-group label:hover { border-color: var(--accent); }
.radio-group input[type="radio"]:checked + * { color: var(--accent2); }
.range-inputs {
  display: flex; align-items: center; gap: 12px;
  margin-top: 0.8rem;
}
.num-input {
  background: var(--card-bg); border: 1px solid var(--glass-border);
  color: var(--text); padding: 8px 12px; border-radius: 8px;
  font-size: 0.9rem; width: 120px; outline: none;
  transition: border-color var(--transition);
}
.num-input:focus { border-color: var(--accent); }
.pdf-info {
  background: rgba(0,212,255,0.05); border: 1px solid rgba(0,212,255,0.15);
  border-radius: 8px; padding: 10px 14px;
  font-size: 0.85rem; color: var(--accent2);
  margin-top: 0.8rem;
}

/* ===== PASSWORD FIELD ===== */
.password-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.field-group label { font-size: 0.85rem; font-weight: 600; color: var(--text-muted); display: block; margin-bottom: 0.5rem; }
.hint-text { color: var(--accent2); font-weight: 400; }
.pw-input-wrap { position: relative; display: flex; }
.pw-input {
  flex: 1; background: var(--card-bg); border: 1px solid var(--glass-border);
  color: var(--text); padding: 10px 40px 10px 12px;
  border-radius: 8px; font-size: 0.9rem; outline: none;
  transition: border-color var(--transition);
}
.pw-input:focus { border-color: var(--accent); }
.pw-toggle {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer; font-size: 1rem; color: var(--text-muted);
}
.strength-bar-wrap { margin-bottom: 1rem; display: flex; align-items: center; gap: 12px; }
.strength-bar {
  flex: 1; height: 4px; background: rgba(255,255,255,0.08);
  border-radius: 2px; overflow: hidden;
  transition: all var(--transition);
}
.strength-label { font-size: 0.8rem; font-weight: 600; min-width: 60px; }
.permissions-section { margin-bottom: 1rem; }
.checkbox-group { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 0.6rem; }
.checkbox-group label {
  display: flex; align-items: center; gap: 8px;
  background: var(--card-bg); border: 1px solid var(--glass-border);
  padding: 8px 14px; border-radius: 8px; cursor: pointer; font-size: 0.875rem;
  transition: border-color var(--transition);
}
.checkbox-group label:hover { border-color: var(--accent); }

/* ===== IMAGE GRID ===== */
.image-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem; margin-top: 1rem;
}
.img-card {
  background: var(--card-bg); border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm); overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  animation: fadeIn 0.3s ease;
}
.img-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,0.4); }
.img-card img { width: 100%; display: block; }
.img-card-footer {
  padding: 8px 10px; display: flex; align-items: center; justify-content: space-between;
  border-top: 1px solid var(--glass-border);
}
.img-card-footer span { font-size: 0.8rem; color: var(--text-muted); }

/* ===== TOOLBAR ===== */
.toolbar {
  display: flex; align-items: center; gap: 0.5rem;
  flex-wrap: wrap;
  background: var(--card-bg); border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm); padding: 10px 14px;
  margin-bottom: 1rem;
}
.tool-btn {
  background: var(--glass); border: 1px solid var(--glass-border);
  color: var(--text-muted); padding: 7px 14px; border-radius: 7px;
  cursor: pointer; font-size: 0.82rem; font-weight: 600;
  transition: all var(--transition);
}
.tool-btn:hover, .tool-btn.active { background: rgba(124,92,252,0.2); border-color: var(--accent); color: var(--text); }
.tool-btn.danger { color: #ff6b6b; }
.tool-btn.danger:hover { background: rgba(255,107,107,0.15); border-color: #ff6b6b; }
.tool-btn.success { color: var(--accent2); }
.tool-btn.success:hover { background: rgba(0,212,255,0.15); border-color: var(--accent2); }
.toolbar-sep { width: 1px; height: 24px; background: var(--glass-border); }
.color-pick { width: 36px; height: 32px; border: 1px solid var(--glass-border); border-radius: 6px; cursor: pointer; background: none; padding: 2px; }
.size-select {
  background: var(--card-bg); border: 1px solid var(--glass-border);
  color: var(--text); padding: 6px 10px; border-radius: 7px; font-size: 0.82rem;
  cursor: pointer; outline: none;
}

/* ===== PDF VIEWER ===== */
.pdf-viewer-wrap {
  background: #1a1a2e; border: 1px solid var(--glass-border);
  border-radius: var(--radius); overflow-y: auto; max-height: 70vh;
  position: relative;
}
.pdf-page-wrap {
  position: relative; display: inline-block; cursor: crosshair;
  display: block; margin: 0 auto;
}
.pdf-page-wrap canvas { display: block; max-width: 100%; }
.annot-layer {
  position: absolute; inset: 0; overflow: hidden; pointer-events: none;
}
.annot-layer.active-layer { pointer-events: all; }
.pdf-page-container { padding: 1rem; display: flex; flex-direction: column; gap: 1rem; }

/* ===== HOW IT WORKS ===== */
.how-section { padding: 80px 0; background: linear-gradient(180deg, transparent, rgba(124,92,252,0.03), transparent); }
.steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5rem; }
.step-card {
  background: var(--card-bg); border: 1px solid var(--glass-border);
  border-radius: var(--radius); padding: 2rem;
  position: relative; overflow: hidden;
  transition: transform var(--transition);
}
.step-card:hover { transform: translateY(-4px); }
.step-num {
  position: absolute; top: 1rem; right: 1.2rem;
  font-size: 3rem; font-weight: 900; color: rgba(255,255,255,0.04);
  line-height: 1;
}
.step-icon { font-size: 2rem; margin-bottom: 1rem; }
.step-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
.step-card p { color: var(--text-muted); font-size: 0.875rem; line-height: 1.6; }

/* ===== FEATURES ===== */
.features-section { padding: 80px 0; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; }
.feat-card {
  background: var(--card-bg); border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm); padding: 1.5rem;
  text-align: center; transition: all var(--transition);
}
.feat-card:hover { border-color: rgba(124,92,252,0.4); transform: translateY(-3px); }
.feat-icon { font-size: 2rem; display: block; margin-bottom: 0.8rem; }
.feat-card h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.3rem; }
.feat-card p { color: var(--text-muted); font-size: 0.8rem; }

/* ===== FOOTER ===== */
.footer { padding: 40px 0; border-top: 1px solid var(--glass-border); }
.footer-inner { display: flex; flex-direction: column; align-items: center; gap: 1rem; text-align: center; }
.footer-text { color: var(--text-muted); font-size: 0.85rem; }

/* ===== TOAST ===== */
.toast {
  position: fixed; bottom: 2rem; right: 2rem; z-index: 999;
  background: rgba(20,20,40,0.95); border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px); border-radius: 12px;
  padding: 12px 20px; font-size: 0.9rem; font-weight: 500;
  transform: translateY(100px); opacity: 0;
  transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
  max-width: 320px;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { border-color: rgba(0,212,255,0.3); color: var(--accent2); }
.toast.error { border-color: rgba(247,37,133,0.3); color: var(--accent3); }
.toast.info { border-color: rgba(124,92,252,0.3); color: #a78bfa; }

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-links, .nav-badge { display: none; }
  .hero-cards { display: none; }
  .password-fields { grid-template-columns: 1fr; }
  .hero h1 { letter-spacing: -1px; }
  .section-header h2 { font-size: 1.8rem; }
  .toolbar { gap: 0.3rem; }
  .tool-btn { padding: 6px 10px; font-size: 0.78rem; }
}