/* ===============================
   Listify — Full CSS (Enhanced + Time Sync)
   =============================== */

   /* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* ---------- Responsive Fix ---------- */
html {
  font-size: 16px; /* base for desktop */
}

/* For tablets and smaller (≤ 1024px) */
@media (max-width: 1024px) {
  html {
    font-size: 15px; /* slightly smaller text */
  }
  .task-row {
    gap: 8px;
  }
  #task-input, #task-time {
    font-size: 0.95rem;
  }
}

/* For mobile phones (≤ 768px) */
@media (max-width: 768px) {
  html {
    font-size: 14px;
  }

  .main-container {
    flex-direction: column;
    padding: 0 12px;
  }

  .task-row {
    flex-direction: column;
    gap: 12px;
    width: 100%;
  }

  #task-input, #task-time {
    width: 100%;  /* full width on mobile */
  }

  #add-task-btn {
    width: 100%;
    border-radius: 12px; /* rectangle button on phone */
  }

  .stat-container {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  #digital-clock {
    font-size: 1.2rem;
    padding: 8px 12px;
  }

  .todos-container li {
    flex-direction: column;
    align-items: flex-start;
  }
 
}
/* Responsive layout for task input row */
@media (max-width: 768px) {
  .task-row {
    flex-direction: column;   /* stack vertically */
    align-items: stretch;
    width: 100%;
    gap: 10px;
  }

  #task-input, 
  #task-time {
    width: 100%;  /* full width inputs on phone */
    font-size: 1rem;
  }

  #add-task-btn {
    width: 100%;             /* full width button */
    border-radius: 12px;     /* rectangle style for mobile */
    font-size: 1.2rem;
    padding: 14px;
  }
}


/* Ensure full viewport coverage */
html, body {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

:root {
  --radius: 14px;
  --font-body: "Poppins", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  --font-heading: "Playfair Display", Georgia, serif;
  --transition-fast: 0.18s;
  --transition-medium: 0.33s;
  --max-width: 980px;
  --card-gap: 1rem;
}

/* ---------- Theme Variables ---------- */
.light-mode {
  --bg: #fffef7;
  --card-bg: rgba(255,255,255,0.88); /* slightly brighter for glass effect */
  --muted-card-bg: rgba(255,255,255,0.7);
  --text: #0f1724;
  --muted: #5b6b74;
  --shadow: 0 10px 25px rgba(10,14,20,0.08);
  --accent: #f59e0b;
  --accent-2: #fbbf24;
  --accent-gradient: linear-gradient(135deg,#fde68a,#f59e0b);
  --glass-border: rgba(255,255,255,0.6);
  --bg-pattern: url("https://i.pinimg.com/1200x/aa/c3/6b/aac36bf110780ceff90a377121161ce6.jpg");
  --bg-overlay: linear-gradient(135deg, rgba(255,255,255,0.08), rgba(255,223,186,0.06));
  --link-hover: linear-gradient(135deg, #fde68a, #f59e0b);
}

.dark-mode {
  --bg: #0b1220;
  --card-bg: rgba(18,24,38,0.65); /* slightly more opaque for depth */
  --muted-card-bg: rgba(26,34,52,0.65);
  --text: #eef2ff;
  --muted: #99a5b3;
  --shadow: 0 12px 35px rgba(2,6,12,0.65);
  --accent: #4fd1c5;
  --accent-2: #805ad5;
  --accent-gradient: linear-gradient(135deg,#4fd1c5,#805ad5);
  --glass-border: rgba(255,255,255,0.04);
  --bg-pattern: url("https://i.pinimg.com/736x/cc/cc/ff/ccccff5613cca65ee9d60cacda27ad51.jpg");
  --bg-overlay: linear-gradient(135deg, rgba(79,209,197,0.05), rgba(128,90,213,0.06));
  --link-hover: linear-gradient(135deg, #4fd1c5, #805ad5);
}


/* ---------- Body Base ---------- */
body {
  font-family: "Poppins", sans-serif;
  color: var(--text);
  min-height: 100vh;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  position: relative;
  transition: background 1s ease, color 0.5s ease;

  /* Correct background handling */
  background-color: var(--bg);
  background-image: var(--bg-pattern);
  background-repeat: no-repeat;
  background-position: center center;
  background-attachment: fixed;
  background-size: cover; /* ensures it always fills */
}



/* ---------- Dynamic Gradient Overlay ---------- */
body::before {
  content: "";
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: var(--bg-overlay);
  mix-blend-mode: soft-light;
  opacity: 0.85;
  pointer-events: none;
  z-index: -1;
  animation: overlayShift 40s infinite alternate ease-in-out;
}

/* ---------- Subtle Vignette ---------- */
body::after {
  content: "";
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: radial-gradient(ellipse at center, rgba(0,0,0,0) 55%, rgba(0,0,0,0.22) 100%);
  pointer-events: none;
  z-index: 0;
}

/* ---------- Floating Light Animation ---------- */
@keyframes overlayShift {
  0%   { transform: translateY(0px) translateX(0px) scale(1); }
  25%  { transform: translateY(-10px) translateX(6px) scale(1.02); }
  50%  { transform: translateY(-5px) translateX(-5px) scale(1.01); }
  75%  { transform: translateY(6px) translateX(4px) scale(1.02); }
  100% { transform: translateY(0px) translateX(0px) scale(1); }
}

/* ---------- Optional Floating Particles ---------- */
.particle {
  position: absolute;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  box-shadow: 0 0 8px rgba(255,255,255,0.5);
  pointer-events: none;
  animation: floatParticle linear infinite;
}

@keyframes floatParticle {
  0% { transform: translateY(0) translateX(0) scale(1); opacity: 0.5; }
  50% { transform: translateY(-50px) translateX(20px) scale(1.2); opacity: 1; }
  100% { transform: translateY(-100px) translateX(-10px) scale(0.8); opacity: 0; }
}


/* ---------- Layout / Container ---------- */
main {
  display: flex;
  justify-content: center;
  padding: 2.5rem 1.5rem;
  gap: 2.2rem;
  transition: all 0.4s ease;
}

.main-container {
  width: 100%;
  max-width: var(--max-width);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.6rem;
  transition: all 0.4s ease;
}

/* responsive 2-column layout for wider screens */
@media(min-width: 980px) {
  .main-container {
    grid-template-columns: 1fr 420px;
    align-items: start;
    gap: 2rem;
  }
}

/* subtle hover & focus effect for all cards inside main-container */
.main-container > * {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
  transition: transform 0.3s ease, box-shadow 0.4s ease, background 0.5s ease;
}
.main-container > *:hover {
  transform: translateY(-2px) scale(1.01);
  box-shadow: 0 14px 36px rgba(0,0,0,0.12);
}


/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 18px;
  margin: 0.6rem auto;
  width: calc(100% - 2.4rem);
  max-width: var(--max-width);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.2rem;
  background: var(--card-bg);
  border-radius: calc(var(--radius) * 0.9);
  box-shadow: 0 12px 28px rgba(0,0,0,0.12), 0 4px 14px rgba(0,0,0,0.08);
  backdrop-filter: blur(14px) saturate(130%);
  z-index: 50;
  transition: background 0.5s ease, box-shadow 0.5s ease, transform 0.3s ease;
}

.site-header:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(0,0,0,0.18), 0 6px 20px rgba(0,0,0,0.1);
}

/* Logo with glow effect */
.site-logo {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  object-fit: cover;
  margin-right: 0.8rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12), 0 0 8px rgba(255,255,255,0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.site-logo:hover {
  transform: scale(1.08) rotate(2deg);
  box-shadow: 0 6px 20px rgba(0,0,0,0.18), 0 0 12px rgba(255,255,255,0.08);
}

/* Title with subtle gradient & glow */
.site-title {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 2px 8px rgba(0,0,0,0.12);
  transition: color 0.4s ease, text-shadow 0.4s ease;
}

/* ---------- Navigation ---------- */
.nav-links {
  display: none;
  font-family: var(--font-body);
}
@media(min-width:720px) {
  .nav-links {
    display: flex;
    align-items: center;
    gap: 1rem;
  }
  .nav-links a {
    position: relative;
    text-decoration: none;
    color: var(--muted);
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 12px;
    transition: all 0.35s ease, color 0.35s ease, box-shadow 0.35s ease, transform 0.35s ease;
  }

  /* Animated underline */
  .nav-links a::after {
    content: "";
    position: absolute;
    left: 10%;
    bottom: 4px;
    width: 0%;
    height: 3px;
    background: var(--accent-gradient);
    border-radius: 2px;
    transition: width 0.35s ease, background 0.35s ease;
  }

  /* Hover effects */
  .nav-links a:hover::after {
    width: 80%;
  }
  .nav-links a:hover {
    color: var(--text);
    background: rgba(255,255,255,0.12); /* slightly brighter for glow effect */
    box-shadow: 0 6px 20px rgba(0,0,0,0.15), 0 0 6px rgba(255,255,255,0.08);
    transform: translateY(-2px) scale(1.03);
  }

  /* Active / current link styling */
  .nav-links a.active {
    color: var(--text);
    font-weight: 700;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1), 0 0 8px rgba(255,255,255,0.05);
  }
  .nav-links a.active::after {
    width: 80%;
  }

  /* Smooth color gradient on hover */
  .nav-links a:hover::after {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
  }
}

/* ---------- Theme toggle (Enhanced) ---------- */
.theme-toggle {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, #6EE7B7, #3B82F6);
  box-shadow: 0 6px 20px rgba(0,0,0,0.18), 0 0 12px rgba(110,231,183,0.5);
  transition: transform var(--transition-fast) ease, box-shadow var(--transition-fast), background 0.6s ease;
  position: relative;
  overflow: hidden;
}

/* Glow animation layer */
.theme-toggle::before {
  content: "";
  position: absolute;
  width: 120%;
  height: 120%;
  background: radial-gradient(circle, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0) 70%);
  top: -10%;
  left: -10%;
  transform: scale(0);
  transition: transform 0.5s ease;
  border-radius: 50%;
}

/* Hover interaction */
.theme-toggle:hover::before {
  transform: scale(1);
}
.theme-toggle:hover {
  transform: translateY(-3px) scale(1.08) rotate(5deg);
  box-shadow: 0 12px 32px rgba(0,0,0,0.28), 0 0 18px rgba(110,231,183,0.7);
}

/* Active click feedback */
.theme-toggle:active {
  transform: scale(0.92) rotate(-2deg);
  box-shadow: 0 4px 16px rgba(0,0,0,0.14), 0 0 10px rgba(110,231,183,0.4);
}

/* Smooth background gradient animation */
@keyframes toggleGradient {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.theme-toggle {
  background: linear-gradient(135deg, #6EE7B7, #3B82F6, #34D399, #60A5FA);
  background-size: 300% 300%;
  animation: toggleGradient 6s ease infinite;
}

/* ---------- Welcome ---------- */
.welcome-message {
  text-align: left;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.2rem 0.8rem;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(12px) saturate(140%);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12), 0 0 18px rgba(255,255,255,0.06);
  transition: all 0.5s ease;
  position: relative;
  overflow: hidden;
}

.welcome-message::before {
  content: "";
  position: absolute;
  top: -40%;
  left: -30%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, rgba(255, 223, 186, 0.15), rgba(255, 59, 180, 0.08), rgba(79, 209, 197, 0.12));
  transform: rotate(30deg);
  animation: shimmerMove 6s infinite linear;
  z-index: 0;
}

@keyframes shimmerMove {
  0% { transform: rotate(30deg) translateX(-100%); }
  50% { transform: rotate(30deg) translateX(100%); }
  100% { transform: rotate(30deg) translateX(-100%); }
}

.welcome-message h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  margin-bottom: 0.35rem;
  background: linear-gradient(135deg, #fcd34d, #f59e0b, #fbbf24);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientText 3s infinite alternate;
  z-index: 1;
  position: relative;
}

@keyframes gradientText {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.welcome-message p {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.5;
  opacity: 0.95;
  z-index: 1;
  position: relative;
}


/* ---------- Digital Clock ---------- */
.clock-reminder-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.8rem;
}
#digital-clock {
  width: 100%;
  max-width: 720px;
  padding: 10px 18px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  text-align: center;
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  backdrop-filter: blur(8px) saturate(120%);
  font-family: monospace;
  font-size: 1.55rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 1px;
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.12);
  transition: color 0.5s ease, box-shadow 0.5s ease;
}

/* ---------- Task Input / Buttons ---------- */
.task-input-container { display: flex; flex-direction: column; gap: 0.65rem; }

.task-row { display: flex; gap: 0.5rem; }
.task-row input[type="text"] {
  flex: 1; padding: 0.65rem 1rem; border-radius: var(--radius);
  border: none; background: var(--muted-card-bg); color: var(--text); font-size: 1rem;
  transition: all var(--transition-medium) ease, box-shadow 0.4s ease;
}
.task-row input[type="text"]::placeholder { color: var(--muted); opacity: 0.85; }
.task-row input[type="text"]:focus { outline: 2px solid var(--accent); background: var(--card-bg); box-shadow: 0 0 18px rgba(0,0,0,0.12); }

/* ---------- Task Buttons (Add / Action Buttons) ---------- */
.task-row button {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none; 
  border-radius: calc(var(--radius) * 1.1);
  padding: 0.55rem 1.1rem; 
  font-size: 1.15rem; 
  color: #fff;
  cursor: pointer; 
  display: grid; 
  place-items: center;
  box-shadow: 0 6px 18px rgba(0,0,0,0.15);
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}

.task-row button::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, rgba(255,255,255,0.15) 10%, transparent 60%);
  opacity: 0;
  transition: opacity 0.35s ease, transform 0.35s ease;
  transform: scale(0.8);
  border-radius: calc(var(--radius) * 1.1);
}

.task-row button:hover::before {
  opacity: 1;
  transform: scale(1.2);
}

.task-row button:hover {
  transform: translateY(-2px) scale(1.06);
  box-shadow: 0 10px 28px rgba(0,0,0,0.22), 0 0 10px rgba(255,255,255,0.08);
}

.task-row button:active {
  transform: scale(0.96) translateY(0);
  box-shadow: 0 4px 14px rgba(0,0,0,0.14);
}
.task-time-row input[type="time"] {
  width: 130px; padding: 0.45rem 0.6rem; border-radius: var(--radius);
  border: none; background: var(--muted-card-bg); color: var(--text);
  font-size: 0.9rem;
  transition: background 0.5s ease;
}

/* ---------- Todo App / Tasks ---------- */
.todo-app { 
  padding: 1rem; 
  border-radius: var(--radius); 
  background: var(--card-bg); 
  box-shadow: var(--shadow); 
  backdrop-filter: blur(10px) saturate(120%);
  transition: background 0.6s ease, box-shadow 0.6s ease, transform 0.3s ease;
}

/* ---------- Task List ---------- */
.todos-container ul { 
  list-style: none; 
  padding: 0; 
  margin: 0; 
}

.todos-container li {
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
  gap: 0.75rem;
  padding: 0.7rem 1rem; 
  margin-bottom: 0.6rem; 
  border-radius: var(--radius);
  background: rgba(255,255,255,0.06); /* subtle glass effect */
  backdrop-filter: blur(6px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.1);
  position: relative; 
  transform-origin: top center;
  transition: all 0.35s ease, box-shadow 0.35s ease, transform 0.25s ease;
}

.todos-container li:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 28px rgba(0,0,0,0.18), 0 0 8px rgba(255,255,255,0.05);
}

.todos-container li.completed span { 
  text-decoration: line-through; 
  opacity: 0.65; 
}

/* ---------- Custom Checkboxes (Neon Glass) ---------- */
.todos-container li input[type="checkbox"] {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border: 2px solid var(--accent-2);
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  transition: all 0.3s ease, box-shadow 0.4s ease;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(4px);
}

.todos-container li input[type="checkbox"]:hover { 
  transform: scale(1.15); 
  border-color: var(--accent);
  box-shadow: 0 0 8px var(--accent), 0 0 12px rgba(255,255,255,0.08);
}

.todos-container li input[type="checkbox"]:checked { 
  background: var(--accent-gradient); 
  border-color: var(--accent-gradient); 
  box-shadow: 0 0 12px var(--accent), 0 0 16px rgba(255,255,255,0.15);
}

.todos-container li input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 6px;
  top: 2px;
  width: 6px;
  height: 12px;
  border: solid #fff;
  border-width: 0 2.5px 2.5px 0;
  transform: rotate(45deg);
  animation: checkMark 0.25s ease forwards;
}

@keyframes checkMark {
  0% { width: 0; height: 0; opacity: 0; }
  50% { width: 6px; height: 12px; opacity: 1; }
  100% { width: 6px; height: 12px; opacity: 1; }
}


/* ---------- Edit & Delete Buttons ---------- */
.edit-btn, .delete-btn {
  border: none; 
  background: transparent; 
  cursor: pointer;
  font-size: 1.1rem; 
  font-weight: 600;
  padding: 6px 10px; 
  border-radius: 10px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease, color 0.3s ease;
}

.edit-btn {
  color: var(--accent-2);
  background: rgba(255,255,255,0.08);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.edit-btn:hover {
  color: #fff;
  background: var(--accent-gradient);
  transform: scale(1.12);
  box-shadow: 0 8px 22px rgba(0,0,0,0.18), 0 0 8px var(--accent);
}

.delete-btn {
  color: #f87171; /* light red */
  background: rgba(248,113,113,0.08);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.delete-btn:hover {
  color: #fff;
  background: linear-gradient(135deg, #f87171, #e02424);
  transform: scale(1.12);
  box-shadow: 0 8px 22px rgba(0,0,0,0.18), 0 0 8px #e02424;
}



/* ---------- Stats / Progress Bar (Cinematic Upgrade) ---------- */
.stat-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.2rem;
  font-weight: 600;
  color: var(--muted);
  font-size: 0.95rem;
}

#progressbar {
  width: 100%;
  height: 12px;
  background: var(--muted-card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 0.3rem;
  position: relative;
  box-shadow: inset 0 2px 6px rgba(0,0,0,0.1);
  transition: background 0.5s ease, box-shadow 0.5s ease;
}

#progress {
  width: 0%;
  height: 100%;
  background: var(--accent-gradient);
  transition: width 0.5s ease, background 0.5s ease;
  border-radius: var(--radius);
  position: relative;
  box-shadow: 0 0 12px rgba(0,0,0,0.12) inset, 0 0 8px rgba(255,255,255,0.08);
}

/* Percentage / Text Indicator */
#progress::after {
  content: attr(data-text);
  position: absolute;
  top: -22px;
  right: 0;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-2);
  text-shadow: 0 0 2px rgba(0,0,0,0.25);
  transition: right 0.35s ease, color 0.35s ease;
}

/* Hover Interaction */
#progressbar:hover #progress {
  box-shadow: 0 0 18px rgba(0,0,0,0.15) inset, 0 0 12px rgba(255,255,255,0.12);
  filter: brightness(1.1);
}

/* Smooth Glow Animation for Progress Bar */
@keyframes progressGlow {
  0%   { box-shadow: 0 0 12px rgba(255,255,255,0.05), 0 0 6px rgba(0,0,0,0.08) inset; }
  50%  { box-shadow: 0 0 18px rgba(255,255,255,0.12), 0 0 10px rgba(0,0,0,0.12) inset; }
  100% { box-shadow: 0 0 12px rgba(255,255,255,0.05), 0 0 6px rgba(0,0,0,0.08) inset; }
}

#progress.animate {
  animation: progressGlow 1.8s infinite alternate ease-in-out;
}

/* Optional: Floating shimmer overlay */
#progress::before {
  content: '';
  position: absolute;
  top: 0; left: -30%;
  width: 30%; height: 100%;
  background: linear-gradient(120deg, rgba(255,255,255,0.15), rgba(255,255,255,0.05), rgba(255,255,255,0.15));
  transform: skewX(-25deg);
  pointer-events: none;
  transition: left 0.5s ease;
}
#progress.animate::before {
  animation: shimmer 1.6s infinite;
}

@keyframes shimmer {
  0% { left: -30%; }
  100% { left: 110%; }
}


/* ---------- Empty State Image (Enhanced) ---------- */
.empty-image { 
  width: 100%; 
  max-width: 400px; 
  display: block; 
  margin: 2.5rem auto 0; 
  border-radius: var(--radius); 
  filter: brightness(0.95) drop-shadow(0 6px 18px rgba(0,0,0,0.2)); 
  transition: all 0.5s ease, transform 0.5s ease, box-shadow 0.5s ease;
  backdrop-filter: blur(4px); /* subtle frosted effect */
  cursor: default;
}

.empty-image:hover {
  transform: scale(1.03) rotate(-1deg);
  filter: brightness(1.05) drop-shadow(0 12px 24px rgba(0,0,0,0.25));
  box-shadow: 0 0 12px var(--accent), 0 0 18px rgba(255,255,255,0.1);
}


/* ---------- Calendar (Enhanced) ---------- */
#calendar {
  margin-top: 1.5rem;
  padding: 1.2rem;
  background: var(--card-bg);
  border-radius: calc(var(--radius) * 1.1);
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  backdrop-filter: blur(12px) saturate(130%);
  transition: background 0.6s ease, box-shadow 0.6s ease;
}

.calendar-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 6px;
  text-align: center;
  font-size: 0.95rem;
  table-layout: fixed;
}

.calendar-table th {
  padding: 0.6rem 0;
  color: var(--accent-2);
  font-weight: 600;
  letter-spacing: 0.5px;
}

.calendar-table td {
  padding: 0.65rem 0;
  border-radius: 8px;
  cursor: pointer;
  background: var(--muted-card-bg);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  color: var(--text);
  font-weight: 500;
  position: relative;
  box-shadow: inset 0 0 4px rgba(0,0,0,0.04);
}

/* Highlight today with neon/glass effect */
.calendar-table td.today {
  background: var(--accent-gradient);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(0,0,0,0.18), 0 0 12px var(--accent);
  position: relative;
  z-index: 2;
}

/* Hover Glow */
.calendar-table td:hover {
  transform: scale(1.08);
  background: linear-gradient(135deg, rgba(255,255,255,0.15), var(--accent-2));
  color: #fff;
  box-shadow: 0 6px 22px rgba(0,0,0,0.18), 0 0 10px var(--accent-2);
}

/* Optional: subtle pulse for today */
.calendar-table td.today::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 8px;
  box-shadow: 0 0 8px var(--accent), 0 0 14px rgba(255,255,255,0.15);
  animation: pulseToday 2.5s infinite alternate ease-in-out;
}

@keyframes pulseToday {
  0% { box-shadow: 0 0 8px var(--accent), 0 0 14px rgba(255,255,255,0.15); }
  50% { box-shadow: 0 0 12px var(--accent), 0 0 18px rgba(255,255,255,0.25); }
  100% { box-shadow: 0 0 8px var(--accent), 0 0 14px rgba(255,255,255,0.15); }
}

/* ---------- Animations ---------- */
.added { 
  animation: fadeInUp 0.4s ease forwards; 
}
.removed { 
  animation: fadeOut 0.35s ease forwards; 
}

@keyframes fadeInUp { 
  0% { opacity: 0; transform: translateY(16px); } 
  100% { opacity: 1; transform: translateY(0); } 
}

@keyframes fadeOut { 
  0% { opacity: 1; transform: translateX(0); } 
  100% { opacity: 0; transform: translateX(36px); } 
}

/* ---------- Time Sync Glow Enhancements ---------- */
.todo-app, 
.todos-container li, 
.task-row input, 
.task-time-row input, 
#digital-clock, 
.task-row button {
  transition: 
    background 0.55s ease, 
    color 0.55s ease, 
    box-shadow 0.55s ease, 
    transform 0.35s ease;
}