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

:root {
  --bg: #F4F7FB;
  --surface: #FFFFFF;
  --surface-2: #EEF2F8;
  --border: #D9E2EC;
  --border-lit: #6CB8FF;
  --text: #0F2847;
  --muted: #6B7785;
  --accent: #2E5C9E;
  --accent-hover: #244B85;
  --on-accent: #FFFFFF;
  --accent-glow: rgba(108, 184, 255, 0.28);
  --green: #2E8B6B;
  --green-bg: #E6F2EC;
  --red: #C8475A;
  --red-bg: #FDECEE;
  --yellow: #B8861F;
  --yellow-bg: #FBF1DA;
  --radius: 10px;
  --radius-pill: 999px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", sans-serif;
  --shadow-card: 0 1px 2px rgba(15, 40, 71, 0.04);
}

body { background: var(--bg); color: var(--text); font-family: var(--font); font-size: 15px; line-height: 1.5;
  -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Nav — frosted glass */
.app-nav {
  display: flex; align-items: center; gap: 1rem;
  padding: 0.75rem 1.5rem; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
  background: rgba(255, 255, 255, 0.72);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.nav-brand { font-weight: 700; font-size: 1.1rem; color: var(--text); letter-spacing: -0.5px; }
.nav-links { display: flex; gap: 0.25rem; flex: 1; margin-left: 1rem; }
.nav-link { padding: 0.35rem 0.75rem; border-radius: var(--radius); color: var(--muted); font-size: 0.9rem;
  transition: color 0.15s, background 0.15s; }
.nav-link:hover, .nav-link.active { color: var(--text); background: var(--surface-2); text-decoration: none; }
.nav-signout { background: none; border: none; color: var(--muted); font-size: 0.85rem; cursor: pointer; padding: 0.35rem 0.5rem;
  font-family: inherit; }
.nav-signout:hover { color: var(--text); }

/* Main */
.app-main { max-width: 720px; margin: 0 auto; padding: 1.5rem 1rem; }

/* Flash */
.flash { padding: 0.6rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; font-size: 0.9rem; }
.flash-notice { background: var(--green-bg); color: var(--green); border: 1px solid var(--green); }
.flash-alert  { background: var(--red-bg);   color: var(--red);   border: 1px solid var(--red); }

/* Page header */
.page-header { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 1.25rem; }
.page-header h1 { font-size: 1.4rem; font-weight: 600; letter-spacing: -0.01em; }

/* button_to generates a <form> wrapper; make it invisible to flex layout */
.item-actions form, .routine-actions form, .todo-actions form { display: contents; }

/* Buttons */
.btn { display: inline-block; padding: 0.45rem 1rem; background: var(--accent); color: var(--on-accent);
  border-radius: var(--radius); font-size: 0.9rem; font-weight: 600; border: none; cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s; font-family: inherit; }
.btn:hover { background-color: var(--accent-hover); text-decoration: none; }
select.btn {
  appearance: none; -webkit-appearance: none; -moz-appearance: none;
  line-height: 1.5;
  padding-right: 2rem;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'><path d='M1 1.5L6 6.5L11 1.5' stroke='white' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0.7rem center;
}
select.btn option { color: var(--text); background: var(--surface); }
.btn-sm { display: inline-block; padding: 0.3rem 0.7rem; background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius); font-size: 0.82rem; cursor: pointer;
  transition: border-color 0.15s; font-family: inherit; }
.btn-sm:hover { border-color: var(--muted); text-decoration: none; }
.btn-danger { background: transparent; color: var(--red); border-color: var(--red); }
.btn-danger:hover { background-color: var(--red-bg); border-color: var(--red); }
.btn-warn { background: transparent; color: var(--yellow); border-color: var(--yellow); }
.btn-warn:hover { background-color: var(--yellow-bg); border-color: var(--yellow); }
.btn-complete { padding: 0.35rem 0.8rem; background: var(--green); color: var(--on-accent);
  border: none; border-radius: var(--radius); font-size: 0.9rem; cursor: pointer; font-weight: 700;
  transition: opacity 0.15s; font-family: inherit; }
.btn-complete:hover { opacity: 0.9; }
.btn-skip { padding: 0.3rem 0.7rem; background: transparent; color: var(--muted);
  border: 1px solid var(--border); border-radius: var(--radius); font-size: 0.82rem; cursor: pointer;
  font-family: inherit; }
.btn-skip:hover { border-color: var(--muted); color: var(--text); }
.btn-undo { padding: 0.3rem 0.7rem; background: transparent; color: var(--muted);
  border: 1px solid var(--border); border-radius: var(--radius); font-size: 0.8rem; cursor: pointer;
  font-family: inherit; }
.btn-undo:hover { color: var(--text); border-color: var(--muted); }

/* Focus ring — LED cyan halo */
.btn:focus-visible, .btn-sm:focus-visible, .btn-complete:focus-visible,
.btn-skip:focus-visible, .btn-undo:focus-visible, .btn-danger:focus-visible,
.nav-link:focus-visible, .nav-signout:focus-visible {
  outline: 2px solid var(--border-lit);
  outline-offset: 1px;
  box-shadow: 0 0 0 4px var(--accent-glow);
}

/* Badges */
.badge { display: inline-block; padding: 0.2rem 0.6rem; border-radius: var(--radius-pill); font-size: 0.78rem; font-weight: 600; }
.badge-done, .badge-completed { background: var(--green-bg); color: var(--green); }
.badge-pending   { background: #E8F0FB; color: var(--accent); }
.badge-skipped   { background: var(--surface-2); color: var(--muted); }
.badge-missed, .badge-over { background: var(--red-bg); color: var(--red); }
.badge-met       { background: var(--green-bg); color: var(--green); }
.badge-in_progress { background: #E8F0FB; color: var(--accent); }

/* Target progress */
.target-progress { display: flex; align-items: center; gap: 0.4rem; margin-top: 0.2rem; }
.target-current { font-weight: 700; font-size: 1rem; }
.target-sep { color: var(--muted); }
.target-goal { color: var(--muted); font-size: 0.9rem; }

/* Detail page meta */
.detail-meta { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; color: var(--muted); font-size: 0.85rem; }
.section-heading { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 0.75rem; }

/* Item list (routines, todos, lists) */
.item-list { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
.item-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0.75rem 1rem; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-card);
  transition: border-color 0.15s; }
.item-row.overdue { border-left: 3px solid var(--red); }
.item-row.muted .item-name { color: var(--muted); }
.item-info { display: flex; flex-direction: column; gap: 0.15rem; min-width: 0; }
.item-name { font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.item-meta { font-size: 0.8rem; color: var(--muted); }
.item-desc { font-size: 0.82rem; color: var(--muted); }
.item-actions { display: flex; align-items: center; gap: 0.4rem; flex-shrink: 0; }
.due-date.overdue { color: var(--red); }
.item-row-link { text-decoration: none; color: inherit; display: block; }
.item-row-link:hover .item-row { border-color: var(--border-lit); }

/* Filter bar */
.filter-bar { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-bottom: 1.25rem; }
.btn-filter-active { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }

/* Day view */
.day-view { display: flex; flex-direction: column; gap: 2rem; }
.day-header { display: flex; align-items: baseline; justify-content: space-between; }
.day-header h1 { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.01em; }
.day-nav { display: flex; gap: 0.75rem; font-size: 0.85rem; color: var(--muted); }
.day-nav a { color: var(--muted); }
.day-nav a:hover { color: var(--text); }
.day-view section h2 { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 0.75rem; }

.routine-list, .todo-list { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
.routine-card, .todo-card {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0.75rem 1rem; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-card);
  transition: opacity 0.15s, border-color 0.15s;
}
.routine-card.state-completed, .routine-card.state-skipped { opacity: 0.55; }
.routine-card.state-missed { border-left: 3px solid var(--red); }
.routine-info, .todo-info { display: flex; flex-direction: column; gap: 0.1rem; }
.routine-name, .todo-name { font-weight: 500; }
.routine-time, .todo-due { font-size: 0.8rem; color: var(--muted); }
.routine-actions, .todo-actions { display: flex; align-items: center; gap: 0.4rem; flex-shrink: 0; }

/* Forms */
.field { display: flex; flex-direction: column; gap: 0.3rem; margin-bottom: 1rem; }
.field label { font-size: 0.85rem; color: var(--muted); font-weight: 500; }
.field input, .field select, .field textarea {
  background: var(--surface); border: 1px solid var(--border); color: var(--text);
  border-radius: var(--radius); padding: 0.5rem 0.75rem; font-size: 0.95rem; width: 100%;
  font-family: var(--font);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--border-lit);
  box-shadow: 0 0 0 4px var(--accent-glow);
}
fieldset { border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; margin-bottom: 1rem;
  background: var(--surface); }
fieldset legend { padding: 0 0.5rem; font-size: 0.85rem; color: var(--muted); font-weight: 500; }
.recurrence-detail { display: none; }
.checkbox-group { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.checkbox-group label { display: flex; align-items: center; gap: 0.3rem; font-size: 0.85rem; color: var(--text); }
.form-actions { display: flex; align-items: center; gap: 0.75rem; margin-top: 1.5rem; }
.form-actions input[type=submit] { padding: 0.5rem 1.25rem; background: var(--accent); color: var(--on-accent);
  border: none; border-radius: var(--radius); font-size: 0.95rem; font-weight: 600; cursor: pointer;
  font-family: inherit; transition: background 0.15s; }
.form-actions input[type=submit]:hover { background: var(--accent-hover); }
.form-actions input[type=submit]:focus-visible {
  outline: 2px solid var(--border-lit); outline-offset: 1px; box-shadow: 0 0 0 4px var(--accent-glow);
}
.form-errors { background: var(--red-bg); border: 1px solid var(--red); border-radius: var(--radius);
  padding: 0.75rem 1rem; margin-bottom: 1rem; color: var(--red); font-size: 0.9rem; }

/* Archived / details */
.archived-section { margin-top: 1.5rem; }
.archived-section summary { cursor: pointer; font-size: 0.85rem; color: var(--muted); user-select: none; }
.archived-section summary:hover { color: var(--text); }
.archived-section .item-list { margin-top: 0.75rem; }

/* Login */
.login-form { max-width: 360px; margin: 4rem auto; }
.login-form h1 { margin-bottom: 1.5rem; }
.login-form .alert { color: var(--red); font-size: 0.9rem; margin-bottom: 0.75rem; }

/* Empty state */
.empty { color: var(--muted); font-size: 0.9rem; padding: 1rem 0; }