:root {
    /* Light mode - Peaceful Blue Theme */
    --bg-primary: #e3f2fd;
    --bg-secondary: #ffffff;
    --bg-verse: #f0f7ff;
    --bg-hover: #e1f0ff;
    --bg-selected: #bbdefb;
    --text-primary: #1565c0;
    --text-secondary: #42a5f5;
    --text-body: #37474f;
    --text-muted: #78909c;
    --border-color: #90caf9;
    --border-focus: #42a5f5;
    --shadow: rgba(33, 150, 243, 0.15);
    --highlight: #fff9c4;
}

body.dark-mode {
    /* Dark mode - Peaceful Blue Theme */
    --bg-primary: #0d1b2a;
    --bg-secondary: #1b263b;
    --bg-verse: #1e2d3d;
    --bg-hover: #253447;
    --bg-selected: #2c4a6e;
    --text-primary: #90caf9;
    --text-secondary: #64b5f6;
    --text-body: #b0bec5;
    --text-muted: #78909c;
    --border-color: #415a77;
    --border-focus: #64b5f6;
    --shadow: rgba(0, 0, 0, 0.4);
    --highlight: #5a5a2d;
}

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

body {
    font-family: 'Georgia', 'Times New Roman', serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 20px;
    line-height: 1.8;
    min-height: 100vh;
    transition: background 0.3s ease, color 0.3s ease;
}

.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
}

#themeToggle {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px var(--shadow);
}

#themeToggle:hover {
    transform: scale(1.1);
    border-color: var(--border-focus);
}

#themeToggle .sun-icon {
    display: block;
}

#themeToggle .moon-icon {
    display: none;
}

body.dark-mode #themeToggle .sun-icon {
    display: none;
}

body.dark-mode #themeToggle .moon-icon {
    display: block;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--bg-secondary);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 8px 32px var(--shadow);
    transition: all 0.3s ease;
}

h1 {
    color: var(--text-primary);
    margin-bottom: 40px;
    text-align: center;
    font-size: 2.5em;
    font-weight: 300;
    letter-spacing: 1px;
}

.controls {
    margin-bottom: 30px;
}

label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.95em;
    letter-spacing: 0.5px;
}

input[type="text"],
select {
    width: 100%;
    padding: 12px 16px;
    font-size: 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-verse);
    color: var(--text-body);
    font-family: 'Georgia', 'Times New Roman', serif;
    transition: all 0.3s ease;
}

input[type="text"]:focus,
select:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(66, 165, 245, 0.1);
}

select {
    cursor: pointer;
}

.random-verse-section {
    text-align: center;
    margin-bottom: 30px;
}

.random-verse-btn {
    background: linear-gradient(135deg, var(--text-secondary), var(--text-primary));
    color: white;
    border: none;
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--shadow);
    letter-spacing: 0.5px;
    font-family: 'Georgia', 'Times New Roman', serif;
}

.random-verse-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--shadow);
}

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

.search-container {
    position: relative;
}

.suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 8px 8px;
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
    box-shadow: 0 8px 24px var(--shadow);
}

.suggestions.active {
    display: block;
}

.suggestion-item {
    padding: 14px 16px;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s ease;
}

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

.suggestion-item:hover {
    background-color: var(--bg-hover);
}

.suggestion-item.selected {
    background-color: var(--bg-selected);
}

.suggestion-reference {
    font-weight: 600;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 6px;
    font-size: 0.95em;
}

.suggestion-text {
    color: var(--text-body);
    font-size: 14px;
    line-height: 1.6;
}

.highlight {
    background-color: var(--highlight);
    font-weight: bold;
    padding: 2px 4px;
    border-radius: 3px;
}

.verses-container {
    min-height: 200px;
}

.placeholder {
    text-align: center;
    color: var(--text-muted);
    padding: 60px 20px;
    font-style: italic;
    font-size: 1.1em;
}

.verse {
    margin-bottom: 20px;
    padding: 20px 24px;
    background-color: var(--bg-verse);
    border-left: 5px solid var(--text-secondary);
    border-radius: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px var(--shadow);
}

.verse:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 16px var(--shadow);
}

.verse-number {
    font-weight: 600;
    color: var(--text-secondary);
    margin-right: 12px;
    font-size: 1.05em;
    display: inline-block;
}

.verse-text {
    color: var(--text-body);
    font-size: 1.05em;
    line-height: 1.8;
}