/* ===== ROOT VARIABLES ===== */
:root {
  --bg: #050810;
  --surface: rgba(255,255,255,0.04);
  --surface2: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.1);
  --gold: #c9a84c;
  --gold2: #f0d080;
  --text: #e8e0d0;
  --subtext: rgba(232,224,208,0.5);
  --accent: #1a2540;
  --danger: #e05555;
}

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

body {
  font-family: 'Raleway', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

.hidden { display: none !important; }

/* ===== LOCK SCREEN ===== */
#lockScreen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  overflow: hidden;
}

.lock-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(201,168,76,0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(26,37,64,0.8) 0%, transparent 60%),
    linear-gradient(135deg, #020408 0%, #070d1a 50%, #020408 100%);
}

.lock-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.particle {
  position: absolute;
  border-radius: 50%;
  background: var(--gold);
  opacity: 0;
  animation: floatParticle linear infinite;
}

@keyframes floatParticle {
  0% { transform: translateY(100vh) scale(0); opacity: 0; }
  10% { opacity: 0.4; }
  90% { opacity: 0.1; }
  100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

.lock-card {
  position: relative;
  z-index: 2;
  width: min(420px, 90vw);
  padding: 3rem 2.5rem;
  background: rgba(10,15,30,0.8);
  border: 1px solid rgba(201,168,76,0.25);
  border-radius: 4px;
  backdrop-filter: blur(20px);
  box-shadow:
    0 0 80px rgba(201,168,76,0.08),
    0 40px 80px rgba(0,0,0,0.6),
    inset 0 1px 0 rgba(201,168,76,0.15);
  animation: cardReveal 0.8s cubic-bezier(0.16,1,0.3,1) both;
  text-align: center;
}

@keyframes cardReveal {
  from { opacity: 0; transform: translateY(30px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.lock-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.5rem;
  color: var(--gold);
  background: rgba(201,168,76,0.08);
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(201,168,76,0.3); }
  50%       { box-shadow: 0 0 0 12px rgba(201,168,76,0); }
}

.vault-title {
  font-family: 'Cinzel', serif;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--gold2);
  margin-bottom: 0.4rem;
}

.vault-sub {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--subtext);
  text-transform: uppercase;
  margin-bottom: 2.5rem;
}

.input-wrapper {
  position: relative;
  margin-bottom: 1.5rem;
}

.input-wrapper input {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: 3px;
  padding: 0.9rem 1.2rem;
  color: var(--text);
  font-family: 'Raleway', sans-serif;
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  outline: none;
  transition: all 0.3s;
}

.input-wrapper input:focus {
  border-color: rgba(201,168,76,0.6);
  background: rgba(201,168,76,0.04);
  box-shadow: 0 0 20px rgba(201,168,76,0.1);
}

.input-wrapper input::placeholder { color: var(--subtext); letter-spacing: 0.05em; }

#unlockBtn {
  width: 100%;
  padding: 0.9rem;
  background: linear-gradient(135deg, rgba(201,168,76,0.9), rgba(240,208,128,0.9));
  border: none;
  border-radius: 3px;
  color: #0a0c10;
  font-family: 'Cinzel', serif;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  cursor: pointer;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

#unlockBtn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.3), transparent);
  transform: translateX(-100%);
  transition: transform 0.5s;
}

#unlockBtn:hover::after { transform: translateX(100%); }
#unlockBtn:hover { transform: translateY(-1px); box-shadow: 0 8px 25px rgba(201,168,76,0.4); }
#unlockBtn:active { transform: translateY(0); }

.error-msg {
  margin-top: 1rem;
  color: var(--danger);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  opacity: 0;
  transition: opacity 0.3s;
}

.error-msg.show { opacity: 1; }

/* ===== VAULT SCREEN ===== */
#vaultScreen {
  min-height: 100vh;
  position: relative;
}

.vault-bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 10% 0%, rgba(201,168,76,0.07) 0%, transparent 50%),
    radial-gradient(ellipse at 90% 100%, rgba(26,37,64,0.5) 0%, transparent 50%),
    linear-gradient(180deg, #04060e 0%, #050810 100%);
  z-index: 0;
  pointer-events: none;
}

/* ===== HEADER ===== */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 2rem;
  background: rgba(5,8,16,0.85);
  border-bottom: 1px solid rgba(201,168,76,0.15);
  backdrop-filter: blur(20px);
}

.header-left { display: flex; align-items: center; gap: 0.75rem; }

.header-icon {
  width: 28px;
  height: 28px;
  color: var(--gold);
}

.header-title {
  font-family: 'Cinzel', serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: var(--gold2);
}

.header-right { display: flex; align-items: center; gap: 0.75rem; }

.upload-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  background: linear-gradient(135deg, rgba(201,168,76,0.85), rgba(240,208,128,0.85));
  border: none;
  border-radius: 3px;
  color: #0a0c10;
  font-family: 'Raleway', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all 0.3s;
}

.upload-btn svg { width: 15px; height: 15px; }
.upload-btn:hover { transform: translateY(-1px); box-shadow: 0 5px 20px rgba(201,168,76,0.35); }

.lock-btn {
  width: 38px;
  height: 38px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--subtext);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 9px;
  transition: all 0.3s;
}

.lock-btn:hover { border-color: var(--gold); color: var(--gold); background: rgba(201,168,76,0.08); }

/* ===== MAIN GALLERY ===== */
main {
  position: relative;
  z-index: 1;
  padding: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.gallery-header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.gallery-header h2 {
  font-family: 'Cinzel', serif;
  font-size: 1.3rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--text);
}

.photo-count {
  font-size: 0.78rem;
  color: var(--subtext);
  letter-spacing: 0.1em;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.photo-item {
  position: relative;
  aspect-ratio: 3/4;
  border-radius: 3px;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid rgba(255,255,255,0.06);
  animation: photoIn 0.5s cubic-bezier(0.16,1,0.3,1) both;
  transition: transform 0.3s, box-shadow 0.3s;
}

@keyframes photoIn {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}

.photo-item:hover {
  transform: scale(1.02) translateY(-3px);
  box-shadow: 0 15px 40px rgba(0,0,0,0.6), 0 0 0 1px rgba(201,168,76,0.3);
  z-index: 2;
}

.photo-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s;
}

.photo-item:hover img { transform: scale(1.05); }

.photo-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.3s;
  display: flex;
  align-items: flex-end;
  padding: 0.75rem;
}

.photo-item:hover .photo-overlay { opacity: 1; }

.photo-num {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.1em;
  font-family: 'Cinzel', serif;
}

/* ===== EMPTY STATE ===== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 5rem 2rem;
  color: var(--subtext);
  text-align: center;
  gap: 1rem;
}

.empty-icon { font-size: 3rem; opacity: 0.4; }
.empty-state p { font-size: 0.9rem; line-height: 1.7; letter-spacing: 0.05em; }

/* ===== LIGHTBOX ===== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 500;
  background: rgba(2,3,8,0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.lb-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  max-width: 90vw;
  max-height: 90vh;
}

.lb-content img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 3px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.8), 0 0 0 1px rgba(201,168,76,0.15);
  animation: imgReveal 0.4s cubic-bezier(0.16,1,0.3,1) both;
}

@keyframes imgReveal {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}

.lb-close, .lb-prev, .lb-next {
  position: fixed;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--text);
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.lb-close {
  top: 1.5rem;
  right: 1.5rem;
  width: 42px;
  height: 42px;
  font-size: 1rem;
}

.lb-prev, .lb-next {
  width: 50px;
  height: 50px;
  font-size: 1.8rem;
  top: 50%;
  transform: translateY(-50%);
}

.lb-prev { left: 1.5rem; }
.lb-next { right: 1.5rem; }

.lb-close:hover, .lb-prev:hover, .lb-next:hover {
  background: rgba(201,168,76,0.15);
  border-color: rgba(201,168,76,0.4);
  color: var(--gold2);
}

.lb-actions { display: flex; gap: 0.75rem; }

.lb-delete {
  padding: 0.5rem 1.2rem;
  background: rgba(224,85,85,0.15);
  border: 1px solid rgba(224,85,85,0.3);
  border-radius: 3px;
  color: #ff8080;
  font-family: 'Raleway', sans-serif;
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.05em;
}

.lb-delete:hover { background: rgba(224,85,85,0.3); transform: translateY(-1px); }

/* ===== DELETE AUTH MODAL ===== */
.del-modal {
  position: fixed;
  inset: 0;
  z-index: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(2,3,8,0.85);
  backdrop-filter: blur(8px);
  animation: fadeIn 0.2s ease;
}

.del-card {
  width: min(380px, 88vw);
  background: rgba(10,15,28,0.95);
  border: 1px solid rgba(224,85,85,0.3);
  border-radius: 4px;
  padding: 2.2rem 2rem;
  text-align: center;
  box-shadow: 0 0 60px rgba(224,85,85,0.1), 0 30px 60px rgba(0,0,0,0.7);
  animation: cardReveal 0.3s cubic-bezier(0.16,1,0.3,1) both;
}

.del-icon { font-size: 2rem; margin-bottom: 0.8rem; }

.del-title {
  font-family: 'Cinzel', serif;
  font-size: 1.1rem;
  letter-spacing: 0.2em;
  color: #ff9090;
  margin-bottom: 0.4rem;
}

.del-sub {
  font-size: 0.78rem;
  color: var(--subtext);
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}

.del-btns {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
}

.del-cancel-btn {
  padding: 0.6rem 1.4rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--subtext);
  font-family: 'Raleway', sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all 0.2s;
}

.del-cancel-btn:hover { border-color: rgba(255,255,255,0.25); color: var(--text); }

.del-confirm-btn {
  padding: 0.6rem 1.4rem;
  background: rgba(224,85,85,0.2);
  border: 1px solid rgba(224,85,85,0.4);
  border-radius: 3px;
  color: #ff8080;
  font-family: 'Raleway', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all 0.2s;
}

.del-confirm-btn:hover { background: rgba(224,85,85,0.35); transform: translateY(-1px); }

/* ===== SHAKE ANIMATION (wrong password) ===== */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-8px); }
  40%       { transform: translateX(8px); }
  60%       { transform: translateX(-6px); }
  80%       { transform: translateX(6px); }
}

.shake { animation: shake 0.4s ease; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(201,168,76,0.25); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(201,168,76,0.45); }

/* ===== RESPONSIVE ===== */
@media (max-width: 600px) {
  header { padding: 1rem; }
  .header-title { font-size: 0.8rem; }
  main { padding: 1rem; }
  .gallery { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; }
  .lb-prev { left: 0.5rem; }
  .lb-next { right: 0.5rem; }
}