:root {
    --primary: #6c63ff;
    --secondary: #00c9a7;
    --danger: #ff6b6b;
    --success: #2ecc71;

    --bg-gradient: linear-gradient(135deg, #e0eaff, #f9f9f9);
    --card-bg: #ffffffcc;
    --input-bg: #ffffff;
    --text-main: #2d3436;
    --text-muted: #636e72;
    --border-color: #ddd;
    --shadow: 0 8px 20px rgba(0, 0, 0, 0.08);

    --toggle-icon: "🌙";
}

body.dark-mode {
    --primary: #8c82ff;
    --secondary: #00dbb6;
    --danger: #ff5252;
    --success: #00d2d3;

    --bg-gradient: linear-gradient(135deg, #1a1a1a 0%, #000000 100%);
    --card-bg: #1e1e1e;
    --input-bg: #2d2d2d;
    --text-main: #e0e0e0;
    --text-muted: #a0a0a0;
    --border-color: #333333;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.6);

    --toggle-icon: "☀️";
}

* {
    font-family: 'Kanit', sans-serif !important;
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    background: var(--bg-gradient);
    color: var(--text-main);
    height: 100vh;
    width: 100vw;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.container {
    width: 95%;
    max-width: 1200px;
    height: 98vh;
    margin: 0 auto;
    padding: 15px 25px;
    border-radius: 20px;
    background: var(--card-bg);
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    position: relative;
    display: flex;
    flex-direction: column;
}

.theme-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-main);
    z-index: 10;
}

.theme-btn::before {
    content: var(--toggle-icon);
}

.theme-btn:hover {
    transform: scale(1.1);
}

h1 {
    text-align: center;
    font-weight: 600;
    color: var(--primary);
    margin: 0 0 8px 0;
    font-size: 1.6rem;
    flex-shrink: 0;
}

.fab-group {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 10px;
    flex-shrink: 0;
}

.fab {
    padding: 8px 20px;
    border: none;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.2);
    color: white;
}

.fab:hover {
    transform: translateY(-2px);
    filter: brightness(1.1);
}

#addBtn {
    background: var(--secondary);
    color: #000;
}

body.dark-mode #addBtn {
    color: #000;
}

#viewBtn {
    background: var(--primary);
}

#clearBtn {
    background: var(--danger);
}

#prevBtn,
#nextBtn {
    background-color: var(--primary);
    color: white;
}

#prevBtn:disabled,
#nextBtn:disabled {
    background-color: #888;
    cursor: not-allowed;
}

.section {
    display: none;
    flex: 1;
    flex-direction: column;
    overflow: hidden;
    animation: fadeIn 0.4s ease;
    padding-bottom: 5px;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

h2 {
    text-align: center;
    color: var(--secondary);
    margin: 0 0 5px 0;
    font-size: 1.3rem;
    flex-shrink: 0;
    border-left: none;
    text-shadow: 0 0 10px rgba(0, 224, 184, 0.2);
}

#addSection[style*="block"] {
    display: flex !important;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

#addSection h2 {
    margin-bottom: 20px;
    font-size: 1.5rem;
}

#addForm {
    width: 100%;
    max-width: 450px;
    padding: 35px 30px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 20px;
    border: 1px solid var(--border-color);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 0;
    flex: unset;
    height: auto;
}

@media (max-height: 700px) {
    #addSection[style*="block"] {
        justify-content: flex-start;
        padding-top: 20px;
        overflow-y: auto;
    }
}

.form-group {
    margin-bottom: 5px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--input-bg);
    color: var(--text-main);
}

.form-group button {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 50px;
    background: var(--secondary);
    color: #000;
    font-weight: 600;
    cursor: pointer;
    margin-top: 15px;
}

#search-container {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
    flex-shrink: 0;
}

#search-container input {
    flex: 1;
    padding: 10px;
    font-size: 0.95rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--input-bg);
    color: var(--text-main);
}

#search-container input:focus {
    outline: none;
    border-color: var(--primary);
}

#daily-total-summary,
#total-summary {
    flex-shrink: 0;
    margin-bottom: 10px;
    font-size: 1.1rem;
    text-align: center;
    width: 100%;
}

#daily-total-summary {
    color: var(--primary);
    font-weight: 600;
    display: none;
}

#searchDate:not(:placeholder-shown)~#daily-total-summary {
    display: block;
}

#total-summary {
    color: var(--success);
    font-weight: 600;
    background: rgba(46, 204, 113, 0.1);
    padding: 8px;
    border-radius: 8px;
    border: 1px solid rgba(46, 204, 113, 0.2);
}

div[style*="overflow-x:auto"] {
    flex: 1;
    overflow-y: auto;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--input-bg);
    min-height: 0;
    position: relative;
}

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

th {
    position: sticky;
    top: 0;
    background: var(--card-bg);
    z-index: 5;
    padding: 12px;
    color: var(--primary);
    font-weight: 600;
    text-align: center;
    border-bottom: 2px solid var(--border-color);
}

body.dark-mode th {
    background: #252525;
}

td {
    padding: 8px 10px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
    color: var(--text-main);
    white-space: nowrap;
    vertical-align: middle;
}

tr:hover {
    background: rgba(128, 128, 128, 0.1);
}

.action-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.action-buttons button {
    border: none;
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.15);
    color: white;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.action-buttons button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    filter: brightness(1.1);
}

.edit-btn {
    background: #f39c12;
}

.delete-btn {
    background: var(--danger);
}

.pagination-controls {
    flex-shrink: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-top: 10px;
    padding-top: 5px;
    border-top: 1px solid transparent;
}

#page-info {
    font-weight: 600;
    color: var(--text-main);
    font-size: 1rem;
}

.modal {
    display: none;
    position: fixed;
    z-index: 999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 16px;
    width: 90%;
    max-width: 450px;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

.close {
    float: right;
    font-size: 26px;
    cursor: pointer;
    color: var(--text-muted);
}

#notification-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast-notification {
    min-width: 250px;
    padding: 15px 20px;
    border-radius: 8px;
    color: white;
    animation: slideInRight 0.5s forwards, fadeOut 0.5s 3.5s forwards;
    font-size: 1rem;
}

.toast-notification.success {
    background: var(--success);
    color: #000;
}

.toast-notification.error {
    background: var(--danger);
    color: #fff;
}

@keyframes slideInRight {
    to { transform: translateX(0); opacity: 1; }
}

@keyframes fadeOut {
    to { opacity: 0; }
}

#loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-gradient);
    z-index: 3000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--text-main);
}

#loading-overlay.hidden {
    display: none;
}

.spinner {
    width: 45px;
    height: 45px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 15px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type=number] {
    -moz-appearance: textfield;
}

/* ✅ จัดระเบียบ Modal ยืนยัน (Confirmation Modal) */
#confirmationModal .modal-content {
    display: flex;
    flex-direction: column;
    align-items: center; /* จัดทุกอย่างในกล่องให้กึ่งกลาง */
    text-align: center;  /* จัดข้อความให้กึ่งกลาง */
    padding: 30px;       /* เพิ่มพื้นที่ภายในให้น่ามอง */
}

/* จัดกลุ่มปุ่ม ยืนยัน/ยกเลิก ให้อยู่ตรงกลางและมีช่องว่าง */
.button-group {
    display: flex;
    justify-content: center;
    gap: 15px;           /* ระยะห่างระหว่างปุ่ม */
    margin-top: 25px;    /* เว้นระยะห่างจากข้อความ */
    width: 100%;
}

/* ปรับปุ่มใน Modal ให้ดูดีขึ้น */
.button-group button {
    min-width: 100px;    /* กำหนดความกว้างขั้นต่ำให้ปุ่มเท่าๆ กัน */
    padding: 10px 20px;
    border-radius: 50px;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.2s;
}

.button-group button:hover {
    transform: scale(1.05); /* ขยายเล็กน้อยเมื่อชี้ */
}