:root {
    --bg-main: #EFE8DF;
    --bg-card: #EFE8DF;
    --bg-element: #EFE8DF;
    --bg-element-hover: #E4DACD;
    --border-color: #E4DACD;
    --text-main: #5C5955;
    --text-muted: #9E9A95;
    --accent: #BDB3A8;
    --accent-hover: #A89F95;
    --danger: #D9A8A8;
    --warning: #D9C3A8;
    --success: #A8D9B6;
    --ovulation: #C2B6D6;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Zen Loop', sans-serif;
    font-size: 1.35rem;
    font-weight: 700;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    min-height: 100vh;
    line-height: 1.6;
}

.app-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.app-header {
    margin-bottom: 2rem;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

h1 {
    font-family: 'Reenie Beanie', cursive;
    font-size: 3.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-main);
    margin-left: 0.2rem;
}

h1 i {
    color: var(--accent);
}

nav {
    display: flex;
    gap: 0.5rem;
    background: var(--bg-card);
    padding: 0.3rem;
    border-radius: 999px;
    box-shadow: none;
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.5rem 1.25rem;
    border-radius: 999px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.nav-btn:hover {
    color: var(--text-main);
    background: var(--bg-element);
}

.nav-btn.active {
    background: var(--bg-element);
    color: var(--text-main);
}

.view {
    display: none;
    animation: fadeIn 0.3s ease;
}

.view.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.card {
    background: var(--bg-card);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: none;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    color: var(--text-main);
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
}

input[type="text"],
input[type="datetime-local"],
textarea,
select {
    width: 100%;
    background: var(--bg-element);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.2s;
}

input[type="text"]:focus,
input[type="datetime-local"]:focus,
textarea:focus,
select:focus {
    outline: none;
    background: var(--bg-card);
    border-color: var(--accent);
}

.tag-input-container {
    background: var(--bg-element);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
    transition: all 0.2s;
}

.tag-input-container:focus-within {
    background: var(--bg-card);
    border-color: var(--accent);
}

.tag-input-container input {
    background: transparent;
    border: none;
    flex-grow: 1;
    min-width: 120px;
    padding: 0.25rem;
    box-shadow: none !important;
}

.tag {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.tag .remove-tag {
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.tag .remove-tag:hover {
    opacity: 1;
    color: var(--danger);
}

small {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.slider {
    width: 100%;
    margin-top: 0.5rem;
    accent-color: var(--accent);
}

.btn-primary {
    background: var(--bg-element);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    padding: 0.875rem 1.5rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    transition: all 0.2s;
}

.btn-primary:hover {
    background: var(--bg-element-hover);
}

.btn-primary:active {
    transform: scale(0.98);
}

.search-panel {
    padding: 1.5rem;
}

.search-bar {
    position: relative;
    margin-bottom: 1rem;
}

.search-bar i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-bar input {
    padding-left: 2.5rem;
}

.filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-chip {
    background: var(--bg-element);
    border: none;
    color: var(--text-muted);
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-chip:hover {
    background: var(--bg-element-hover);
    color: var(--text-main);
}

.filter-chip.active {
    background: var(--accent);
    color: white;
}

.history-feed {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.history-card {
    background: var(--bg-card);
    border-radius: 0.75rem;
    padding: 1.25rem;
    box-shadow: none;
}

.history-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.history-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.history-notes {
    font-size: 0.875rem;
    color: var(--text-muted);
    background: var(--bg-main);
    padding: 0.75rem;
    border-radius: 0.5rem;
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    color: var(--text-main);
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 1.2rem;
    height: 1.2rem;
    cursor: pointer;
    accent-color: var(--danger);
}

.drop-icon {
    color: var(--danger);
}

.hidden {
    display: none !important;
}

.insights-panel {
    background: var(--bg-element);
    border-radius: 1rem;
}

.insights-panel h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.cycle-badge {
    background: var(--bg-element);
    color: var(--danger);
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.icon-btn {
    background: var(--bg-element);
    border: none;
    color: var(--text-main);
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
}

.icon-btn:hover {
    background: var(--bg-element-hover);
}

.calendar-grid-header {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.5rem;
}

.cal-day {
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: 0.5rem;
    background: var(--bg-main);
    cursor: pointer;
    position: relative;
    font-size: 0.9rem;
    color: var(--text-main);
    border: 1px solid transparent;
}

.cal-day:hover {
    background: var(--bg-element);
}

.cal-day.empty {
    background: transparent;
    cursor: default;
}

.cal-day.day-period {
    color: var(--danger);
    font-weight: 500;
}

.cal-day.day-ovulation {
    color: var(--ovulation);
    font-weight: 500;
}

.cal-day.selected-day {
    background: var(--bg-element);
    border-color: var(--accent);
}

.cal-day.today {
    font-weight: 600;
}

.symptom-dot {
    width: 4px;
    height: 4px;
    background-color: var(--accent);
    border-radius: 50%;
    position: absolute;
    bottom: 6px;
}

.day-details {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--bg-main);
    border-radius: 0.5rem;
}

.cycle-info {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.mood-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.mood-selector label {
    cursor: pointer;
    margin: 0;
}
.mood-selector input {
    display: none;
}
.mood-selector span {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    background: var(--bg-element);
    color: var(--text-main);
    transition: all 0.2s;
    font-size: 0.875rem;
}
.mood-selector input:checked + span {
    background: var(--bg-card);
    box-shadow: none;
    border: 1px solid var(--accent);
}
.mood-badge {
    background: var(--bg-element);
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.symptom-entry-card {
    background: var(--bg-main);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.symptom-entry-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 500;
}

.symptom-slider-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-muted);
}
.symptom-slider-container input[type="range"] {
    flex: 1;
}

/* Lock Screen */
.lock-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--bg-main);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.lock-container {
    width: 90%;
    max-width: 350px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--bg-card);
    border-radius: 1rem;
    box-shadow: none;
}

.pin-display {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.pin-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--bg-element);
    transition: all 0.2s ease;
}

.pin-dot.filled {
    background: var(--accent);
}

.pin-pad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    width: 100%;
}

.pin-btn {
    aspect-ratio: 1;
    border-radius: 50%;
    background: var(--bg-element);
    border: none;
    color: var(--text-main);
    font-size: 1.5rem;
    font-weight: 400;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.2s ease;
}

.pin-btn:hover {
    background: var(--bg-element-hover);
}

.pin-btn:active {
    transform: scale(0.95);
}

.nav-btn-icon {
    padding: 0.5rem 1rem;
    font-size: 1.25rem;
    color: var(--text-muted);
}
.nav-btn-icon:hover {
    color: var(--accent);
    background: var(--bg-element);
}