/* =========================================================
   ROOT
========================================================= */

:root {
    --app-bg: #f4f6f9;
    --surface: #ffffff;
    --surface-secondary: #f8f9fa;
    --border: #e9ecef;
    --text: #212529;
    --text-secondary: #6c757d;
    --card-radius: 14px;
    --shadow:
      0 1px 3px rgba(0, 0, 0, 0.035);

    --shadow-hover:
     0 3px 8px rgba(0, 0, 0, 0.055);
}

/* =========================================================
   DARK THEME
========================================================= */

[data-theme="dark"] {
    --app-bg: #181a1b;
    --surface: #242628;
    --surface-secondary: #2c2f31;
    --border: #3d4145;
    --text: #f1f3f5;
    --text-secondary: #adb5bd;

    --shadow:
        0 4px 18px rgba(0, 0, 0, 0.25);

    --shadow-hover:
        0 10px 28px rgba(0, 0, 0, 0.40);
}

/* =========================================================
   BODY
========================================================= */

body {
    background-color: var(--app-bg);
    color: var(--text);
    min-height: 100vh;

    transition:
        background-color 0.2s ease,
        color 0.2s ease;
}

/* =========================================================
   HEADER
========================================================= */

.app-header {
    background-color: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 18px 0;
    position: sticky;
    top: 0;
    z-index: 100;

    transition:
        background-color 0.2s ease,
        border-color 0.2s ease;
}

.header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.app-brand {
    min-width: 0;
}

.app-title {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
}

.app-title i {
    margin-right: 6px;
}

.app-subtitle {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 3px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.theme-button {
    width: 42px;
    height: 42px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}


.btn-new-note {
    white-space: nowrap;
}

/* =========================================================
   TOOLBAR
========================================================= */

.toolbar {
    display: flex;
    gap: 12px;
    margin-top: 18px;
}

.search-wrapper {
    position: relative;
    flex: 1;
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    pointer-events: none;
    z-index: 2;
}

.search-input {
    padding-left: 40px;
    padding-right: 42px;
    background-color: var(--surface);
    border-color: var(--border);
    color: var(--text);
}

.search-input::placeholder {
    color: var(--text-secondary);
}

.search-input:focus {
    background-color: var(--surface);
    color: var(--text);
}

.search-clear {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    border: 0;
    background: transparent;
    color: var(--text-secondary);
    padding: 4px;
    z-index: 3;
}

.search-clear:hover {
    color: var(--text);
}

.sort-wrapper {
    width: 220px;
}

.sort-wrapper select {
    background-color: var(--surface);
    border-color: var(--border);
    color: var(--text);
}

/* =========================================================
   COUNTER
========================================================= */

.notes-counter {
    color: var(--text-secondary);
    font-size: 0.82rem;
    margin-top: 9px;
}

/* =========================================================
   NOTE CARD
========================================================= */

.note-card {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--card-radius);
    overflow: hidden;
    height: 100%;
    cursor: pointer;
    box-shadow: var(--shadow);

    transition:
        transform 0.15s ease,
        box-shadow 0.15s ease,
        border-color 0.15s ease;
}


.note-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.note-card:focus-visible {
    outline:
        3px solid rgba(13, 110, 253, 0.35);

    outline-offset: 2px;
}

/* =========================================================
   CARD COLORS
========================================================= */

.note-card.color-yellow {
    border-top: 5px solid #ffc107;
}

.note-card.color-green {
    border-top: 5px solid #198754;
}

.note-card.color-blue {
    border-top: 5px solid #0d6efd;
}

.note-card.color-purple {
    border-top: 5px solid #6f42c1;
}

.note-card.color-red {
    border-top: 5px solid #dc3545;
}

.note-card.color-default {
    border-top: 5px solid #6c757d;
}

/* =========================================================
   CARD HEADER
========================================================= */

.note-card-header {
    background-color: var(--surface);
    padding: 16px 18px 12px;
    border-bottom: 1px solid var(--border);
}

.note-card-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0;
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* =========================================================
   CARD BODY
========================================================= */

.note-card-body {
    background-color: var(--surface);
    padding: 15px 18px;
    min-height: 105px;
}

.note-card-text {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
    white-space: pre-line;
}

/* =========================================================
   CARD FOOTER
========================================================= */

.note-card-footer {
    background-color: var(--surface);
    padding: 12px 18px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.note-card-date {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.note-card-open {
    color: #0d6efd;
    font-size: 0.8rem;
    white-space: nowrap;
}

/* =========================================================
   EMPTY STATE
========================================================= */

.empty-state {
    background-color: var(--surface);
    border: 1px dashed var(--border);
    border-radius: 14px;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state i {
    display: block;
    font-size: 4rem;
    margin-bottom: 15px;
}

.empty-state h3 {
    color: var(--text);
    margin-bottom: 8px;
}

/* =========================================================
   MODAL
========================================================= */

.modal-content {
    background-color: var(--surface);
    color: var(--text);
    border: 0;
    border-radius: 14px;
    overflow: hidden;
}

.modal-header {
    background-color: var(--surface-secondary);
    border-bottom-color: var(--border);
}

.modal-footer {
    border-top-color: var(--border);
    flex-wrap: wrap;
}

.form-label {
    color: var(--text);
}

.form-control,
.form-select {
    background-color: var(--surface);
    border-color: var(--border);
    color: var(--text);
}

.form-control:focus,
.form-select:focus {
    background-color: var(--surface);
    color: var(--text);
}

.form-control::placeholder {
    color: var(--text-secondary);
}

.btn-close {
    filter: none;
}

[data-theme="dark"] .btn-close {
    filter:
        invert(1)
        grayscale(100%)
        brightness(200%);
}

/* =========================================================
   FORM LABEL + COUNTER
========================================================= */

.form-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.character-counter {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.character-counter.limit-near {
    color: #fd7e14;
}

.character-counter.limit-reached {
    color: #dc3545;
    font-weight: 600;
}

.note-body-input {
    resize: vertical;
    min-height: 220px;
}

/* =========================================================
   NOTE COLORS
========================================================= */

.note-colors {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.color-option {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;

    transition:
        transform 0.15s ease,
        border-color 0.15s ease;
}

.color-option:hover {
    transform: scale(1.1);
}

.color-option.active {
    border-color: var(--text);
    box-shadow: 0 0 0 2px var(--surface);
}

.color-default {
    background: #6c757d;
}

.color-yellow {
    background: #ffc107;
}

.color-green {
    background: #198754;
}

.color-blue {
    background: #0d6efd;
}

.color-purple {
    background: #6f42c1;
}

.color-red {
    background: #dc3545;
}

/* =========================================================
   DATE
========================================================= */

.note-date {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

/* =========================================================
   CONFIRMATION
========================================================= */

.confirmation-icon {
    text-align: center;
    font-size: 3rem;
    color: #0d6efd;
    margin-bottom: 15px;
}

.confirmation-message {
    text-align: center;
    margin: 0;
    line-height: 1.6;
}

.confirmation-note-title {
    font-weight: 700;
    margin-top: 8px;
}

/* =========================================================
   MOBILE
========================================================= */

@media (max-width: 767.98px) {
    .app-header {
        position: relative;
        padding: 14px 0;
    }

    .header-top {
        gap: 10px;
    }

    .app-title {
        font-size: 1.25rem;
    }

    .app-subtitle {
        font-size: 0.75rem;
    }

    .toolbar {
        flex-direction: column;
    }

    .sort-wrapper {
        width: 100%;
    }

    .btn-new-note span {
        display: none;
    }

    .btn-new-note {
        width: 42px;
        height: 42px;
        padding: 0;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .btn-new-note i {
        margin: 0;
    }

    .modal-footer {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .modal-footer button {
        width: 100%;
    }
}

@media (max-width: 400px) {
    .app-title {
        font-size: 1.1rem;
    }

    .theme-button,
    .btn-new-note,
    .backup-button,
    .restore-button {
        width: 38px;
        height: 38px;
        min-width: 38px;
        min-height: 38px;
        padding: 0;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        box-sizing: border-box;
    }
}

/* =========================================================
   DRAG & DROP
========================================================= */

.note-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
}

.note-card-drag-handle {
    flex: 0 0 auto;
    width: 28px;
    height: 28px;
    padding: 0;
    border: 0;
    background: transparent;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    cursor: grab;
    touch-action: none;

    transition:
        color 0.15s ease,
        background-color 0.15s ease;
}

.note-card-drag-handle:hover {
    color: var(--text);
    background-color: var(--surface-secondary);
}

.note-card-drag-handle:active {
    cursor: grabbing;
}

.note-card-title {
    min-width: 0;
    flex: 1;
}

.note-card-dragging {
    opacity: 0.55;
    transform: scale(0.98);
}

.is-dragging {
    user-select: none;
}

.is-dragging .note-card {
    cursor: grabbing;
}

.drag-ready {
    user-select: none;
}

/* =========================================================
   TOAST
========================================================= */

.toast {
    background-color: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-hover);
}

.toast-header {
    background-color: var(--surface-secondary);
    color: var(--text);
    border-bottom-color: var(--border);
}

.toast-body {
    background-color: var(--surface);
    color: var(--text);
}

/* =========================================================
   HEADER ACTION BUTTONS - SMALL SCREENS
========================================================= */

@media (max-width: 767.98px) {

    .header-actions > button {
        width: 42px !important;
        height: 42px !important;

        min-width: 42px !important;
        max-width: 42px !important;

        min-height: 42px !important;
        max-height: 42px !important;

        padding: 0 !important;

        margin: 0 !important;

        display: inline-flex !important;

        align-items: center !important;
        justify-content: center !important;

        box-sizing: border-box !important;

        flex: 0 0 42px !important;
    }

    .header-actions > button span {
        display: none !important;
    }

    .header-actions > button i {
        margin: 0 !important;
        padding: 0 !important;
        line-height: 1 !important;
    }
}

/* ========================================================= 
    VERY SMALL SCREENS 
========================================================= */

@media (max-width: 400px) {
    .header-actions > button {
        width: 38px !important;
        height: 38px !important;

        min-width: 38px !important;
        max-width: 38px !important;

        min-height: 38px !important;
        max-height: 38px !important;

        flex: 0 0 38px !important;
    }
}