@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=DM+Mono:wght@500&display=swap');

:root {
  --bg-main: #f0f2f8;
  --bg-card: #ffffff;
  --bg-hover: #eef0ff;
  --bg-nav: #ffffff;

  --text-main: #1a1d2e;
  --text-muted: #6b7280;
  --text-light: #9ca3af;

  --btn-main: #5b6cff;
  --btn-hover: #4657e6;
  --btn-text: #ffffff;

  --done-bg: #edf7e6;
  --done-border: #b6dfa0;

  --border-main: #e2e5f0;
  --border-soft: #f1f3fb;

  --shadow-sm: 0 2px 8px rgba(91,108,255,0.06);
  --shadow-md: 0 8px 28px rgba(91,108,255,0.10);

  --font-main: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'DM Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;

  --nav-width: 64px;
}

.dark-mode {
  --bg-main: #0d0f18;
  --bg-card: #151822;
  --bg-hover: #1c2030;
  --bg-nav: #111420;

  --text-main: #e8eaf6;
  --text-muted: #8b90a8;
  --text-light: #555a72;

  --btn-main: #5b6cff;
  --btn-hover: #4657e6;
  --btn-text: #ffffff;

  --done-bg: #1a2b18;
  --done-border: #2d4a28;

  --border-main: #232637;
  --border-soft: #1a1d2e;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.4);
  --shadow-md: 0 8px 28px rgba(0,0,0,0.5);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  padding-left: var(--nav-width);
  transition: background-color 0.3s, color 0.3s;
}

.side-nav {
  width: var(--nav-width);
  position: fixed;
  left: 0;
  top: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0 28px;
  background-color: var(--bg-nav);
  border-right: 1px solid var(--border-main);
  box-shadow: var(--shadow-sm);
  z-index: 100;
  transition: all 0.3s;
}

.nav-logo {
  border-radius: 10px;
  transition: transform 0.2s;
}
.nav-logo:hover { transform: scale(1.08); cursor: pointer; }

.side-nav-btns {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}

.side-nav button {
  background: transparent;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, transform 0.15s;
  color: var(--btn-main);
}
.side-nav button svg { fill: var(--btn-main); }
.side-nav button:hover {
  background: var(--bg-hover);
  transform: scale(1.1);
}

#add-btn2 {
  background: var(--btn-main) !important;
  display: none;
}
#add-btn2 svg { fill: #fff; }
#add-btn2:hover { background: var(--btn-hover) !important; }

#light-mode { display: none; }

#add-btn {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--btn-main);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(91,108,255,0.35);
  transition: all 0.3s;
  z-index: 9999;
}
#add-btn:hover {
  background: var(--btn-hover);
  box-shadow: 0 6px 28px rgba(91,108,255,0.45);
  transform: scale(1.05);
}

#addmenu {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--bg-card);
  border: 1px solid var(--border-main);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  width: clamp(340px, 50vw, 580px);
  padding: 32px;
  z-index: 9998;
  display: none;
  flex-direction: column;
}

.modal-inner h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.inputfield {
  display: flex;
  gap: 10px;
  align-items: center;
}

#listinput {
  flex: 1;
  height: 48px;
  font-size: 1rem;
  font-family: var(--font-main);
  font-weight: 500;
  color: var(--text-main);
  background: var(--bg-main);
  border: 1.5px solid var(--border-main);
  border-radius: var(--radius-sm);
  padding: 0 16px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
#listinput:focus {
  border-color: var(--btn-main);
  box-shadow: 0 0 0 3px rgba(91,108,255,0.15);
}
#listinput::placeholder { color: var(--text-light); }

#input-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--btn-main);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}
#input-btn:hover {
  background: var(--btn-hover);
  transform: scale(1.05);
}

.main-content {
  max-width: 780px;
  margin: 0 auto;
  padding: 48px 32px 80px;
}

.header {
  margin-bottom: 48px;
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 6px;
}

.logo-wrap img { border-radius: 12px; }

.logo-wrap h1 {
  font-size: 2.6rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-main);
}

.subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  font-weight: 500;
  margin-left: 2px;
}

.tasks-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.tasks-header h2 {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.task-count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: var(--bg-hover);
  color: var(--btn-main);
  border: 1.5px solid var(--border-main);
  border-radius: 20px;
  padding: 3px 12px;
}

#tempmsg {
  color: var(--text-light);
  font-weight: 500;
  font-size: 0.95rem;
  text-align: center;
  padding: 48px 0;
}


.tasks-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.task {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--bg-card);
  border: 1.5px solid var(--border-main);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s;
  animation: slideIn 0.28s ease forwards;
}

.task:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: rgba(91,108,255,0.25);
}

.task.is-done {
  background: var(--done-bg);
  border-color: var(--done-border);
}


.task-left {
  display: flex;
  flex-direction: column;
  gap: 7px;
  flex: 1;
  min-width: 0;
}

.task-text {
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: all 0.2s;
}

.date-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--bg-main);
  border: 1.5px solid var(--border-main);
  border-radius: 20px;
  padding: 3px 10px 3px 8px;
  width: fit-content;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.date-badge:hover {
  border-color: var(--btn-main);
  background: var(--bg-hover);
}

.cal-icon {
  display: flex;
  align-items: center;
  opacity: 0.6;
}
.cal-icon svg { fill: var(--btn-main); }

.date-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
  pointer-events: none;
}

.date-badge input[type="date"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
  border: none;
  background: transparent;
}

.date-badge input[type="date"]::-webkit-calendar-picker-indicator {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.task-btns {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.task-btns button {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.btn-edit {
  background: var(--bg-hover);
  color: var(--btn-main);
}
.btn-edit svg { fill: var(--btn-main); }
.btn-edit:hover { background: var(--btn-main); }
.btn-edit:hover svg { fill: #fff; }

.btn-done {
  background: var(--bg-hover);
}
.btn-done svg { fill: #22c55e; }
.btn-done:hover { background: #22c55e; }
.btn-done:hover svg { fill: #fff; }

.btn-del {
  background: var(--bg-hover);
}
.btn-del svg { fill: #ef4444; }
.btn-del:hover { background: #ef4444; }
.btn-del:hover svg { fill: #fff; }

@keyframes slideIn {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes slideOut {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(40px); }
}


#info-popup {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--bg-card);
  border: 1px solid var(--border-main);
  width: min(440px, 90vw);
  padding: 32px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  z-index: 10000;
}

.info-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.info-header img { height: 44px; border-radius: 10px; }
.info-header h2 { font-size: 1.6rem; font-weight: 700; color: var(--text-main); }

.info-content {
  color: var(--text-muted);
  line-height: 1.6;
  font-size: 0.92rem;
  margin-bottom: 24px;
}
.info-version {
  color: var(--btn-main);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  margin-top: 8px;
}

.social-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.social-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  background: var(--btn-main);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-decoration: none;
  font-weight: 600;
  font-family: var(--font-main);
  font-size: 0.88rem;
  transition: all 0.2s;
}
.social-btn:hover { background: var(--btn-hover); transform: translateY(-1px); }
.social-btn svg { width: 17px; height: 17px; fill: #fff; }

.close-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 22px;
  cursor: pointer;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: all 0.2s;
  line-height: 1;
}
.close-btn:hover { background: var(--bg-main); color: var(--text-main); }


@media (max-width: 768px) {
  body { padding-left: 0; padding-bottom: 70px; }

  .side-nav {
    width: 100%;
    height: 60px;
    flex-direction: row;
    top: auto;
    bottom: 0;
    border-right: none;
    border-top: 1px solid var(--border-main);
    padding: 0 16px;
  }

  .nav-logo { display: none; }

  .side-nav-btns {
    flex-direction: row;
    width: 100%;
    justify-content: space-around;
  }

  #add-btn2 {
    display: flex !important;
    background: var(--btn-main) !important;
  }

  #add-btn { display: none; }

  .main-content { padding: 28px 16px 80px; }

  .logo-wrap h1 { font-size: 2rem; }

  .task { flex-wrap: wrap; }
  .task-btns { margin-left: auto; }
}

@media (max-width: 480px) {
  .social-links { flex-direction: column; }
  .social-btn { width: 100%; justify-content: center; }
}