@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@600&family=Fredoka:wght@400;600&family=Quicksand:wght@400;600&display=swap');

:root {
  --bg-cream: #fbf9f3;
  --bg-card: #ffffff;
  --color-text: #433e3a;
  --color-text-muted: #857c74;
  --color-primary: #ffb703; /* Cheerful warm yellow */
  --color-primary-light: #ffe3a8; /* Warm light yellow tint */
  --color-primary-dark: #fb8500; /* Rich orange accent */
  --color-secondary: #8ecae6; /* Friendly sky blue */
  --color-secondary-dark: #219ebc; /* Sky blue hover/active */
  --color-accent: #e8f2f5; /* Very soft sky blue for dots */
  --font-title: 'Fredoka', sans-serif;
  --font-body: 'Quicksand', sans-serif;
  --font-handwritten: 'Caveat', cursive;
  --shadow-polaroid: 0 12px 28px rgba(67, 62, 58, 0.12), 0 4px 10px rgba(67, 62, 58, 0.08);
  --shadow-ui: 0 8px 24px rgba(67, 62, 58, 0.06);
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-cream);
  color: var(--color-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image: 
    radial-gradient(var(--color-secondary) 1px, transparent 1px),
    radial-gradient(var(--color-secondary) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: 0 0, 12px 12px;
  opacity: 0.95;
  overflow-x: hidden;
}

/* Header & Nav */
header {
  padding: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  z-index: 10;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.logo-icon {
  font-size: 2rem;
  animation: float-logo 3s ease-in-out infinite;
}

h1.logo-text {
  font-family: var(--font-title);
  color: var(--color-primary-dark);
  font-size: 1.8rem;
  font-weight: 600;
  letter-spacing: -0.5px;
}

nav {
  display: flex;
  gap: 16px;
}

.nav-link {
  font-family: var(--font-title);
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 600;
  padding: 8px 20px;
  border-radius: 20px;
  background-color: transparent;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-primary-dark);
  background-color: #ffffff;
  box-shadow: var(--shadow-ui);
  transform: translateY(-2px);
}

/* Background floating elements */
.floating-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
  overflow: hidden;
}

.floating-item {
  position: absolute;
  font-size: 1.5rem;
  opacity: 0.15;
  animation: float-around 20s linear infinite;
}

/* Main layouts */
main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 24px;
}

.hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
  text-align: center;
}

.hero-title-group h2 {
  font-family: var(--font-title);
  font-size: 2.5rem;
  color: var(--color-text);
  margin-bottom: 8px;
}

.hero-title-group p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

/* Polaroid Container & Cute Washi Tape */
.polaroid-frame {
  background-color: var(--bg-card);
  padding: 16px 16px 48px 16px;
  box-shadow: var(--shadow-polaroid);
  border-radius: 4px;
  border: 1px solid rgba(0,0,0,0.03);
  position: relative;
  display: inline-block;
  transform: rotate(-3deg);
  transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease;
  z-index: 2;
  max-width: 320px;
  width: 100%;
  aspect-ratio: 4/5;
}

.polaroid-frame:hover {
  transform: rotate(1deg) scale(1.03);
  box-shadow: 0 20px 35px rgba(74, 65, 58, 0.15), 0 8px 15px rgba(74, 65, 58, 0.1);
  z-index: 3;
}

.polaroid-frame.tilted-right {
  transform: rotate(3deg);
}

.polaroid-frame.tilted-right:hover {
  transform: rotate(-1deg) scale(1.03);
}

.polaroid-image-container {
  width: 100%;
  aspect-ratio: 1;
  background-color: #f0f0f0;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.05);
  border-radius: 2px;
}

.polaroid-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.polaroid-caption {
  font-family: var(--font-handwritten);
  font-size: 1.8rem;
  text-align: center;
  color: #3b3530;
  margin-top: 14px;
  line-height: 1.2;
}

.polaroid-date {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 2px;
  font-weight: 600;
}

/* Washi Tape Effect */
.washi-tape {
  position: absolute;
  width: 120px;
  height: 30px;
  background-color: rgba(201, 228, 222, 0.6); /* pastel green semi-transparent */
  backdrop-filter: blur(1px);
  top: -15px;
  left: 50%;
  transform: translateX(-50%) rotate(-4deg);
  box-shadow: 0 2px 5px rgba(0,0,0,0.03);
  border-left: 2px dashed rgba(0,0,0,0.08);
  border-right: 2px dashed rgba(0,0,0,0.08);
  z-index: 4;
}

.washi-tape::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: repeating-linear-gradient(45deg, rgba(255,255,255,0.15) 0px, rgba(255,255,255,0.15) 2px, transparent 2px, transparent 8px);
}

.washi-tape.blue {
  background-color: rgba(142, 202, 230, 0.75);
  transform: translateX(-50%) rotate(3deg);
}

/* Buttons */
.btn {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: 30px;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-ui);
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  outline: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  border: 2px solid transparent;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 10px 20px rgba(251, 133, 0, 0.25);
}

.btn-primary:active {
  transform: translateY(-1px) scale(1.02);
}

.btn-secondary {
  background-color: #ffffff;
  color: var(--color-text);
  border: 2px solid var(--color-primary-light);
}

.btn-secondary:hover {
  background-color: var(--color-accent);
  transform: translateY(-3px) scale(1.05);
}

/* Modal Popup & Overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(74, 65, 58, 0.4);
  backdrop-filter: blur(6px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

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

.modal-content {
  background-color: transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  max-width: 500px;
  width: 90%;
  position: relative;
  transform: scale(0.85);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: -40px;
  right: 0;
  background-color: #ffffff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--color-text-muted);
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-ui);
  transition: all 0.2s ease;
}

.modal-close-btn:hover {
  color: var(--color-primary-dark);
  transform: scale(1.1);
}

.modal-actions {
  margin-top: 30px;
  display: flex;
  gap: 16px;
  z-index: 10;
}

/* Loading Calendar Animation */
.calendar-animation-container {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 101;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(250, 247, 242, 0.95);
  backdrop-filter: blur(4px);
}

.calendar-animation-container.active {
  display: flex;
}

/* The Cute 3D Calendar Card */
.calendar-widget {
  width: 180px;
  height: 200px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 15px 35px rgba(74, 65, 58, 0.15);
  border: 3px solid var(--color-text);
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  transform: perspective(600px) rotateX(10deg);
  animation: wiggle-calendar 1s infinite alternate ease-in-out;
}

.calendar-header {
  height: 48px;
  background-color: var(--color-primary);
  border-bottom: 3px solid var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

/* Calendar binder rings */
.calendar-header::before, .calendar-header::after {
  content: '';
  position: absolute;
  top: -12px;
  width: 14px;
  height: 24px;
  border-radius: 7px;
  background: #ccd0d4;
  border: 3px solid var(--color-text);
  box-shadow: inset -2px 0 5px rgba(0,0,0,0.1);
}

.calendar-header::before { left: 40px; }
.calendar-header::after { right: 40px; }

.calendar-month {
  font-family: var(--font-title);
  color: white;
  font-weight: 600;
  font-size: 1.2rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.calendar-body {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  perspective: 1000px;
}

.calendar-date-flipping {
  font-family: var(--font-title);
  font-size: 4.5rem;
  color: var(--color-text);
  font-weight: 600;
  position: relative;
  animation: flip-date 0.25s infinite linear;
  transform-origin: center;
}

.loading-text {
  margin-top: 30px;
  font-family: var(--font-title);
  font-size: 1.3rem;
  color: var(--color-primary-dark);
  font-weight: 600;
  animation: heartbeat 1.2s infinite ease-in-out;
}

/* Database page layouts */
.db-container {
  max-width: 1000px;
  width: 100%;
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: 40px;
  align-items: start;
  margin-top: 20px;
}

@media (max-width: 800px) {
  .db-container {
    grid-template-columns: 1fr;
  }
  .polaroid-frame {
    max-width: 280px;
  }
}

/* Card glass containers */
.glass-card {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 24px;
  padding: 32px;
  box-shadow: var(--shadow-ui);
}

.glass-card h3 {
  font-family: var(--font-title);
  font-size: 1.6rem;
  color: var(--color-text);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Forms */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  padding: 12px 18px;
  border-radius: 14px;
  border: 2px solid rgba(74, 65, 58, 0.1);
  background-color: rgba(255, 255, 255, 0.9);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  outline: none;
  transition: all 0.25s ease;
}

.form-input:focus {
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 4px rgba(255, 143, 163, 0.15);
  background-color: white;
}

/* Custom File Upload Button */
.file-upload-wrapper {
  position: relative;
  overflow: hidden;
  display: inline-block;
  width: 100%;
}

.file-upload-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 18px;
  border: 2px dashed var(--color-primary-light);
  background-color: rgba(255, 143, 163, 0.05);
  color: var(--color-primary-dark);
  font-family: var(--font-title);
  font-weight: 600;
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.file-upload-wrapper:hover .file-upload-btn {
  background-color: rgba(255, 183, 3, 0.1);
  border-color: var(--color-primary);
}

.file-upload-wrapper input[type=file] {
  font-size: 100px;
  position: absolute;
  left: 0;
  top: 0;
  opacity: 0;
  cursor: pointer;
}

.file-name-preview {
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  display: none;
  align-items: center;
  gap: 4px;
}

/* Grid of memories */
.memories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
  max-height: 70vh;
  overflow-y: auto;
  padding: 10px;
}

/* Custom Scrollbar for Grid */
.memories-grid::-webkit-scrollbar {
  width: 8px;
}
.memories-grid::-webkit-scrollbar-track {
  background: transparent;
}
.memories-grid::-webkit-scrollbar-thumb {
  background: var(--color-primary-light);
  border-radius: 4px;
}
.memories-grid::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

.grid-polaroid {
  padding: 10px 10px 30px 10px;
  max-width: 100%;
  aspect-ratio: 4/5;
  box-shadow: 0 8px 20px rgba(74, 65, 58, 0.08);
  transform: rotate(var(--rotation, 0deg));
}

.grid-polaroid:hover {
  transform: scale(1.05) rotate(0deg);
  box-shadow: var(--shadow-polaroid);
}

.grid-polaroid .polaroid-caption {
  font-size: 1.3rem;
  margin-top: 10px;
}

.grid-polaroid .polaroid-date {
  font-size: 0.75rem;
}

.grid-polaroid .delete-btn {
  position: absolute;
  top: -8px;
  right: -8px;
  background-color: var(--color-primary-dark);
  color: white;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: none;
  font-size: 0.8rem;
  cursor: pointer;
  opacity: 0;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.grid-polaroid:hover .delete-btn {
  opacity: 1;
}

.grid-polaroid .delete-btn:hover {
  transform: scale(1.2);
  background-color: #ff0000;
}

.empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
  color: var(--color-text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  animation: heartbeat 2s infinite ease-in-out;
}

/* Toast Messages */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-card);
  border-left: 5px solid var(--color-primary);
  padding: 16px 24px;
  border-radius: 12px;
  box-shadow: var(--shadow-polaroid);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 1000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast-icon {
  font-size: 1.3rem;
  color: var(--color-primary);
}

.toast-message {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
}

/* Animations Keyframes */
@keyframes float-logo {
  0% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-4px) scale(1.08); }
  100% { transform: translateY(0) scale(1); }
}

@keyframes float-around {
  0% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(15px, 20px) rotate(180deg); }
  100% { transform: translate(0, 0) rotate(360deg); }
}

@keyframes wiggle-calendar {
  0% { transform: perspective(600px) rotateX(10deg) rotate(-2deg); }
  100% { transform: perspective(600px) rotateX(10deg) rotate(2deg); }
}

@keyframes flip-date {
  0% { transform: rotateX(0deg); opacity: 1; }
  50% { transform: rotateX(-90deg); opacity: 0.5; }
  100% { transform: rotateX(-180deg); opacity: 0; }
}

@keyframes heartbeat {
  0% { transform: scale(1); }
  14% { transform: scale(1.1); }
  28% { transform: scale(1); }
  42% { transform: scale(1.1); }
  70% { transform: scale(1); }
}

/* Mobile Responsiveness Improvements */
@media (max-width: 600px) {
  header {
    flex-direction: column;
    gap: 16px;
    padding: 16px;
    text-align: center;
  }
  
  nav {
    width: 100%;
    justify-content: center;
    gap: 10px;
  }

  .nav-link {
    padding: 6px 14px;
    font-size: 0.9rem;
  }

  .hero-title-group h2 {
    font-size: 1.8rem;
    padding: 0 10px;
  }

  .hero-title-group p {
    font-size: 0.95rem;
    padding: 0 15px;
  }

  .polaroid-frame {
    max-width: 250px;
    padding: 12px 12px 38px 12px;
  }

  .polaroid-caption {
    font-size: 1.4rem;
    margin-top: 10px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 1rem;
  }

  .db-container {
    gap: 20px;
  }

  .glass-card {
    padding: 20px;
    border-radius: 16px;
  }

  .glass-card h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
  }

  .memories-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 16px;
    max-height: 60vh;
  }

  .grid-polaroid .polaroid-caption {
    font-size: 1.1rem;
    margin-top: 6px;
  }

  .grid-polaroid .polaroid-date {
    font-size: 0.7rem;
  }

  .modal-actions {
    margin-top: 20px;
  }

  .toast {
    left: 20px;
    right: 20px;
    bottom: 20px;
    padding: 12px 18px;
  }
}