:root {
    --bg-color: #0b0f19;
    --card-bg: #151d2a;
    --accent-color: #38bdf8;
    --accent-hover: #0284c7;
    --text-main: #f8fafc;
    --text-sub: #94a3b8;
    --border-color: #1e293b;
    --danger-color: #ef4444;
    --success-color: #10b981;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    line-height: 1.5;
}

.container { 
    max-width: 650px; 
    width: 100%; 
}

/* Language Switcher Buttons */
.lang-switch { 
    text-align: right; 
    margin-bottom: 15px; 
    display: flex;
    justify-content: flex-end;
    gap: 6px;
}

.lang-btn {
    background: transparent; 
    border: 1px solid var(--border-color); 
    color: var(--text-sub);
    padding: 5px 12px; 
    border-radius: 6px; 
    cursor: pointer; 
    font-size: 0.85rem;
    transition: all 0.2s ease;
}

.lang-btn:hover {
    border-color: var(--accent-color);
    color: var(--text-main);
}

.lang-btn.active { 
    border-color: var(--accent-color); 
    color: var(--accent-color); 
    font-weight: bold; 
    background: rgba(56, 189, 248, 0.1);
}

/* Header & Typography */
header { 
    text-align: center; 
    margin-bottom: 25px; 
    position: relative; 
}

h1 { 
    margin: 0; 
    font-size: 1.8rem; 
    letter-spacing: -0.5px; 
}

.slogan { 
    color: var(--text-sub); 
    font-size: 0.95rem; 
    margin-top: 8px; 
    font-weight: 500; 
}

/* Status Bar & Flash Animation */
.status-bar { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    margin-bottom: 15px; 
    padding: 8px 12px;
    border-radius: 8px;
    transition: background 0.3s ease;
}

.status-bar.flash-success {
    background: rgba(16, 185, 129, 0.2);
}

.status-text { 
    color: var(--success-color); 
    font-weight: bold; 
    font-size: 0.9rem; 
}

.lock-btn { 
    background: transparent; 
    border: 1px solid var(--danger-color); 
    color: var(--danger-color); 
    padding: 4px 12px; 
    border-radius: 6px; 
    cursor: pointer; 
    font-size: 0.85rem; 
    transition: all 0.2s;
    width: auto;
}

.lock-btn:hover { 
    background: var(--danger-color); 
    color: #fff; 
}

/* Cards & Layout */
.card { 
    background: var(--card-bg); 
    padding: 24px; 
    border-radius: 12px; 
    border: 1px solid var(--border-color); 
    margin-bottom: 20px; 
    box-shadow: 0 4px 20px rgba(0,0,0,0.3); 
}

.notice-card { 
    border-left: 4px solid var(--accent-color); 
    background: rgba(56, 189, 248, 0.05); 
}

/* Inputs, Textareas, Selects & Buttons */
input, select, button { 
    width: 100%; 
    padding: 12px; 
    margin: 8px 0; 
    border-radius: 8px; 
    border: 1px solid var(--border-color); 
    background: #0b0f19; 
    color: #fff; 
    box-sizing: border-box; 
    font-size: 0.95rem; 
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus, select:focus, textarea:focus { 
    outline: none; 
    border-color: var(--accent-color); 
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.2);
}

/* Error Shake Animation for Master Password Input */
@keyframes shakeAnimation {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-8px); }
    40%, 80% { transform: translateX(8px); }
}

.shake {
    animation: shakeAnimation 0.4s ease-in-out;
    border-color: var(--danger-color) !important;
    box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.3) !important;
}

/* Button & Shortcut Hints */
.btn-hint-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.shortcut-hint {
    font-size: 0.75rem;
    color: var(--text-sub);
}

/* File Upload Controls */
.file-upload-wrapper { 
    position: relative; 
    margin: 8px 0; 
}

.file-upload-wrapper input[type="file"] { 
    display: none; 
}

.file-upload-label { 
    display: block; 
    width: 100%; 
    padding: 12px; 
    border-radius: 8px; 
    border: 1px dashed var(--border-color); 
    background: #0b0f19; 
    color: var(--text-sub); 
    box-sizing: border-box; 
    font-size: 0.95rem; 
    text-align: center; 
    cursor: pointer; 
    transition: border-color 0.2s, color 0.2s; 
}

.file-upload-label:hover { 
    border-color: var(--accent-color); 
    color: var(--text-main); 
}

/* Button Variants */
button.primary-btn { 
    background: var(--accent-color); 
    color: #0b0f19; 
    font-weight: 600; 
    cursor: pointer; 
    border: none; 
    transition: background 0.2s, color 0.2s; 
}

button.primary-btn:hover { 
    background: var(--accent-hover); 
    color: #fff; 
}

button.secondary-btn { 
    background: transparent; 
    border: 1px solid var(--accent-color); 
    color: var(--accent-color); 
    font-weight: 600; 
    cursor: pointer; 
    transition: 0.2s; 
}

button.secondary-btn:hover { 
    background: var(--accent-color); 
    color: #0b0f19; 
}

button.danger-btn { 
    background: transparent; 
    border: 1px solid var(--danger-color); 
    color: var(--danger-color); 
    font-weight: 600; 
    cursor: pointer; 
    transition: 0.2s; 
}

button.danger-btn:hover { 
    background: var(--danger-color); 
    color: #fff; 
}

/* Reset Details Section */
details.reset-details { 
    margin-top: 15px; 
    padding-top: 10px; 
    border-top: 1px dashed var(--border-color); 
}

details.reset-details summary { 
    color: var(--text-sub); 
    font-size: 0.85rem; 
    cursor: pointer; 
    text-align: center; 
    user-select: none; 
}

details.reset-details summary:hover { 
    color: var(--danger-color); 
}

.reset-box { 
    background: rgba(239, 68, 68, 0.05); 
    border: 1px solid rgba(239, 68, 68, 0.2); 
    padding: 12px; 
    border-radius: 8px; 
    margin-top: 10px; 
}

.reset-notice { 
    color: var(--danger-color); 
    font-size: 0.8rem; 
    margin: 0 0 8px 0; 
    line-height: 1.4; 
}

/* Dynamic Journal Entry List Items */
.flex-row { 
    display: flex; 
    gap: 10px; 
}

.item { 
    border-bottom: 1px solid var(--border-color); 
    padding: 16px 0; 
    display: flex; 
    flex-direction: column; 
    gap: 8px; 
}

.item:last-child { 
    border-bottom: none; 
}

.item-header { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
}

.item-actions button { 
    width: auto; 
    padding: 6px 12px; 
    margin: 0; 
    font-size: 0.8rem; 
    border-radius: 6px; 
    border: 1px solid var(--border-color); 
    background: #0b0f19; 
    color: var(--text-main); 
    cursor: pointer; 
    transition: all 0.2s ease;
}

.item-actions button:hover { 
    border-color: var(--accent-color); 
    color: var(--accent-color); 
}

.btn-danger:hover { 
    border-color: var(--danger-color) !important; 
    color: var(--danger-color) !important; 
}

/* Notice & Footer Text */
.notice-text { 
    color: var(--text-sub); 
    font-size: 0.85em; 
    text-align: center; 
}

ul.notice-list { 
    padding-left: 20px; 
    font-size: 0.85rem; 
    color: var(--text-sub); 
    margin: 8px 0 0 0; 
    line-height: 1.6; 
}

ul.notice-list li { 
    margin-bottom: 6px; 
}

/* Floating Toast Notifications */
#toast { 
    position: fixed; 
    bottom: -50px; 
    left: 50%; 
    transform: translateX(-50%); 
    background: var(--accent-color); 
    color: #0b0f19; 
    padding: 10px 20px; 
    border-radius: 8px; 
    font-weight: bold; 
    font-size: 0.9rem; 
    transition: bottom 0.3s ease, opacity 0.3s ease; 
    z-index: 1000; 
    box-shadow: 0 4px 12px rgba(0,0,0,0.5); 
    opacity: 0;
}

#toast.show { 
    bottom: 20px; 
    opacity: 1;
}