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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: #f0f2f5;
    color: #1a1a2e;
    min-height: 100vh;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem 1.5rem 3.5rem;
    text-align: center;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
}

header h1 {
    color: #fff;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

header p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    margin-top: 0.3rem;
}

.container {
    max-width: 860px;
    margin: -2rem auto 2rem;
    padding: 0 1.25rem;
    position: relative;
    z-index: 1;
}
.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
    background: #fff;
    border-radius: 14px;
    padding: 0.4rem;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.tab-btn {
    flex: 1;
    padding: 0.7rem 1rem;
    border: none;
    border-radius: 11px;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    background: transparent;
    color: #6b7190;
    transition: all 0.25s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.tab-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.35);
}

.tab-btn:not(.active):hover {
    background: #f0f2f5;
}

.tab-badge {
    background: rgba(255, 255, 255, 0.25);
    font-size: 0.72rem;
    padding: 0.15rem 0.55rem;
    border-radius: 50px;
    font-weight: 700;
}

.tab-btn:not(.active) .tab-badge {
    background: #e8ebf5;
    color: #667eea;
}

.search-bar {
    background: #fff;
    border-radius: 14px;
    padding: 0.75rem 1.15rem;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.search-bar svg {
    color: #aab0c0;
    flex-shrink: 0;
}

.search-bar input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 0.92rem;
    color: #1a1a2e;
    font-family: inherit;
}

.search-bar input::placeholder {
    color: #b8bdd0;
}

.search-clear {
    background: none;
    border: none;
    cursor: pointer;
    color: #c5c9db;
    padding: 0.2rem;
    border-radius: 6px;
    display: none;
    transition: color 0.2s;
}

.search-clear.visible {
    display: flex;
}

.search-clear:hover {
    color: #667eea;
}

.note-input-card {
    background: #fff;
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    margin-bottom: 1.5rem;
}

.note-input-card input[type="text"] {
    width: 100%;
    border: none;
    font-size: 1.15rem;
    font-weight: 600;
    color: #1a1a2e;
    outline: none;
    padding: 0.25rem 0;
    margin-bottom: 0.75rem;
}

.note-input-card input[type="text"]::placeholder {
    color: #aab0c0;
    font-weight: 500;
}

.note-input-card textarea {
    width: 100%;
    border: none;
    font-size: 0.95rem;
    color: #3a3a5c;
    outline: none;
    resize: vertical;
    min-height: 100px;
    line-height: 1.65;
    font-family: inherit;
}

.note-input-card textarea::placeholder {
    color: #b8bdd0;
}

.input-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #f0f2f5;
}

.char-count {
    font-size: 0.8rem;
    color: #aab0c0;
}

.btn-add {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    padding: 0.7rem 1.75rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-add:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.55);
}

.btn-add:active {
    transform: translateY(0);
}

.btn-add:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.notes-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.notes-header h2 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #3a3a5c;
}

.btn-empty-trash {
    background: #fdecea;
    color: #e74c3c;
    border: none;
    padding: 0.5rem 1.1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.btn-empty-trash:hover {
    background: #f9d6d2;
}
.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
}

.note-card {
    background: #fff;
    border-radius: 14px;
    padding: 1.25rem;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
    animation: fadeIn 0.35s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.note-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.note-card.trashed {
    border-left: 3px solid #e74c3c;
    opacity: 0.85;
}

.note-card .note-title {
    font-size: 1rem;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 0.5rem;
    word-break: break-word;
}

.note-card .note-body {
    font-size: 0.88rem;
    color: #6b7190;
    line-height: 1.6;
    flex: 1;
    word-break: break-word;
    white-space: pre-wrap;
}

.note-card .note-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid #f0f2f5;
}

.note-card .note-date {
    font-size: 0.73rem;
    color: #b0b5c8;
    font-weight: 500;
}

.note-actions {
    display: flex;
    gap: 0.25rem;
}

.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    color: #c5c9db;
    padding: 0.35rem;
    border-radius: 8px;
    transition: background 0.2s, color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon.delete:hover  { background: #fdecea; color: #e74c3c; }
.btn-icon.restore:hover { background: #e8f5e9; color: #27ae60; }
.btn-icon.perma:hover   { background: #fdecea; color: #c0392b; }

mark {
    background: #fff3b0;
    color: inherit;
    border-radius: 2px;
    padding: 0 1px;
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    grid-column: 1 / -1;
}

.empty-state .icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    opacity: 0.25;
}

.empty-state h3 {
    color: #aab0c0;
    font-size: 1.1rem;
    font-weight: 600;
}

.empty-state p {
    color: #c5c9db;
    font-size: 0.88rem;
    margin-top: 0.35rem;
}

.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(120%);
    background: #1a1a2e;
    color: #fff;
    padding: 0.85rem 1.5rem;
    border-radius: 12px;
    font-size: 0.88rem;
    font-weight: 500;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    transition: transform 0.35s cubic-bezier(0.17, 0.67, 0.35, 1.2), visibility 0.35s;
    z-index: 100;
    white-space: nowrap;
    visibility: hidden;
    opacity: 0;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    visibility: visible;
    opacity: 1;  
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal {
    background: #fff;
    border-radius: 18px;
    padding: 2rem;
    width: 90%;
    max-width: 400px;
    text-align: center;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
    transform: scale(0.9);
    transition: transform 0.25s;
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal .modal-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
}

.modal .modal-icon.red   { background: #fdecea; }
.modal .modal-icon.red svg { color: #e74c3c; }

.modal h3 {
    font-size: 1.15rem;
    margin-bottom: 0.4rem;
}

.modal p {
    font-size: 0.88rem;
    color: #6b7190;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
}

.modal-actions button {
    flex: 1;
    padding: 0.75rem;
    border-radius: 12px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: background 0.2s;
}

.btn-cancel { background: #f0f2f5; color: #3a3a5c; }
.btn-cancel:hover { background: #e3e6ed; }

.btn-confirm-delete { background: #e74c3c; color: #fff; }
.btn-confirm-delete:hover { background: #d43d2f; }

@media (max-width: 500px) {
    header { padding: 1.5rem 1rem 3rem; }
    header h1 { font-size: 1.55rem; }
    .container { padding: 0 0.75rem; }
    .notes-grid { grid-template-columns: 1fr; }
    .tab-btn { font-size: 0.82rem; padding: 0.6rem 0.5rem; }
}