/* Dark mode base */
:root {
    --bg-dark: #0d1117;
    --bg-card: #161b22;
    --bg-input: #21262d;
    --border-color: #30363d;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --accent-green: #39d353;
    --accent-blue: #58a6ff;
    --accent-purple: #a371f7;
    --accent-pink: #f778ba;
    --accent-orange: #ffa657;
    --accent-red: #f85149;
    --accent-yellow: #e3b341;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Bootstrap overrides for dark mode */
.nav-tabs {
    border-bottom-color: var(--border-color);
}

.nav-tabs .nav-link {
    color: var(--text-secondary);
    border: none;
    font-size: 1.1rem;
    padding: 0.75rem 1.25rem;
    transition: all 0.2s ease;
}

.nav-tabs .nav-link:hover {
    color: var(--accent-blue);
    border-color: transparent;
}

.nav-tabs .nav-link.active {
    background-color: var(--bg-card);
    color: var(--accent-green);
    font-weight: 700;
    border: 1px solid var(--border-color);
    border-bottom-color: var(--bg-card);
}

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.card-header {
    background-color: var(--bg-input);
    border-bottom-color: var(--border-color);
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.1rem;
    padding: 0.8rem 1rem;
}

.card-body {
    color: var(--text-primary);
}

.card-body p {
    color: var(--text-primary);
}

.card-body strong {
    color: var(--accent-green);
}

.form-control, .input-group-text {
    background-color: var(--bg-input);
    border-color: var(--border-color);
    color: var(--text-primary);
    font-size: 1rem;
    padding: 0.6rem 0.8rem;
    border-radius: 8px;
}

.form-control:focus {
    background-color: var(--bg-input);
    border-color: var(--accent-blue);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.25);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
    border: none;
    font-weight: 700;
    font-size: 1rem;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(88, 166, 255, 0.3);
}

.btn-spend {
    background: linear-gradient(135deg, var(--accent-red), var(--accent-orange));
    border: none;
    font-weight: 700;
    font-size: 1rem;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    color: white;
}

.btn-spend:hover {
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-red));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(248, 81, 73, 0.3);
    color: white;
}

.btn-secondary {
    background-color: var(--bg-input);
    border-color: var(--border-color);
    color: var(--text-primary);
    font-size: 0.95rem;
    padding: 0.6rem 1rem;
    border-radius: 8px;
}

.btn-secondary:hover {
    background-color: var(--border-color);
    border-color: var(--text-secondary);
    color: var(--text-primary);
    transform: translateY(-1px);
}

.btn-outline-danger {
    color: var(--accent-red);
    border-color: var(--accent-red);
}

.btn-outline-danger:hover {
    background-color: var(--accent-red);
    color: white;
}

.list-group-item {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.text-muted {
    color: var(--text-secondary) !important;
}

.text-spend {
    color: var(--accent-red) !important;
}

.badge.bg-success {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-blue)) !important;
}

/* Thermometer visualization */
.thermometer-container {
    display: inline-block;
    padding: 20px;
}

.thermometer-svg {
    width: 120px;
    height: 380px;
    filter: drop-shadow(0 0 20px rgba(88, 166, 255, 0.2));
}

.thermometer-labels {
    text-align: center;
    margin-bottom: 20px;
}

.thermometer-current {
    font-size: 3rem;
    font-weight: 800;
}

.amount-gradient {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.thermometer-target {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-purple);
}

.thermometer-need {
    font-size: 2.16rem;
}

.thermometer-left-to-save {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-purple);
    opacity: 0.5;
}

.thermometer-bulb-text {
    font-size: 24px;
    font-weight: 800;
    fill: var(--accent-orange);
    stroke: black;
    stroke-width: 3px;
    paint-order: stroke fill;
}

.prediction {
    font-size: 1.25rem;
    padding: 18px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.prediction.text-success {
    border-color: var(--accent-green);
    box-shadow: 0 0 20px rgba(57, 211, 83, 0.2);
}

.prediction-losing {
    border-color: var(--accent-red);
    box-shadow: 0 0 20px rgba(248, 81, 73, 0.2);
}

.possibility {
    margin-left: 5px;
}

/* Contribution list styling */
.contribution-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
}

.contribution-amount {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-green);
}

.contribution-note {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.contribution-date {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.delete-btn {
    opacity: 0.5;
    transition: opacity 0.2s;
}

.delete-btn:hover {
    opacity: 1;
}

/* Possibility contributions */
.possibility-contribution {
    background: repeating-linear-gradient(
        45deg,
        var(--bg-card),
        var(--bg-card) 10px,
        var(--bg-input) 10px,
        var(--bg-input) 20px
    );
}

.possibility-contribution .contribution-amount {
    color: var(--text-secondary);
}

.possibility-badge {
    display: inline-block;
    font-size: 0.75rem;
    padding: 2px 8px;
    margin-left: 8px;
    background: var(--bg-input);
    border: 1px dashed var(--text-secondary);
    border-radius: 12px;
    color: var(--text-secondary);
    vertical-align: middle;
}

.form-check-label {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
}

.form-check-input {
    background-color: var(--bg-input);
    border-color: var(--border-color);
    width: 1.6em;
    height: 1.6em;
    margin-top: 0.1em;
    cursor: pointer;
}

.form-check-input:checked {
    background-color: var(--accent-purple);
    border-color: var(--accent-purple);
}

.form-check-input:focus {
    box-shadow: 0 0 0 3px rgba(163, 113, 247, 0.25);
    border-color: var(--accent-purple);
}

/* Goal tabs styling */
.nav-tabs .nav-link {
    color: var(--text-secondary);
}

.nav-tabs .nav-link.active {
    font-weight: 700;
}

/* Animations */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.goal-complete {
    animation: pulse 2s ease-in-out infinite;
}

/* Form styling improvements */
.form-label {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 1.1rem;
}

/* Emoji enhancements */
.emoji {
    font-size: 1.5rem;
    margin-right: 0.5rem;
}

.emoji-large {
    font-size: 2rem;
}

/* This or That buttons */
.this-that-row {
    align-items: stretch;
}

.btn-this-that {
    background: var(--accent-yellow);
    border: 3px solid var(--accent-yellow);
    border-radius: 16px;
    padding: 1.5rem 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.btn-this-that:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(227, 179, 65, 0.4);
}

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

.this-that-text {
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(135deg, #f85149, #ffa657, #e3b341, #39d353, #58a6ff, #a371f7, #f778ba);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    -webkit-text-stroke: 1.5px var(--accent-blue);
    paint-order: stroke fill;
    filter: drop-shadow(0 4px 12px rgba(88, 166, 255, 0.4)) drop-shadow(0 2px 4px rgba(0, 0, 0, 0.5));
}

/* Modal styling */
.modal-content {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
}

.modal-header {
    border-bottom-color: var(--border-color);
    padding: 1.5rem 1.5rem 1rem;
}

.modal-body {
    padding: 1.5rem;
}

.modal-title-spending {
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent-red), var(--accent-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-title-saving {
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* Date toggle buttons */
.date-toggle {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.date-toggle .btn {
    flex: 1;
}

.btn-date {
    background-color: var(--bg-input);
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
    font-weight: 700;
    font-size: 1rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
}

.btn-date:hover {
    border-color: var(--accent-blue);
    color: var(--text-primary);
}

.btn-date.active {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
}

/* Negative contribution styling */
.contribution-negative {
    color: var(--accent-red) !important;
    font-weight: 700;
}

.negative-contribution {
    border-left: 3px solid var(--accent-red);
}

/* History prediction banner at top of tab */
.prediction-banner {
    padding: 1.25rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    text-align: center;
}

.prediction-banner-label {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.prediction-banner-date {
    font-size: 2.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.prediction-banner-rate {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.prediction-banner-complete {
    border-color: var(--accent-green);
    box-shadow: 0 0 20px rgba(57, 211, 83, 0.2);
    font-size: 1.5rem;
    animation: pulse 2s ease-in-out infinite;
}

.prediction-banner-losing {
    border-color: var(--accent-red);
    box-shadow: 0 0 20px rgba(248, 81, 73, 0.2);
}

.prediction-banner-empty {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Spend preview in modal */
.spend-preview {
    margin-bottom: 1rem;
    padding: 1rem 1.25rem;
    background: rgba(248, 81, 73, 0.08);
    border: 1px solid var(--accent-red);
    border-radius: 10px;
}

.spend-preview-label {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent-orange);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.spend-preview-balance {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.spend-preview-date {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent-orange);
}

.spend-preview-current {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.spend-preview-losing {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent-red);
}

/* Login page */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-card {
    width: 100%;
    max-width: 420px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-icon {
    font-size: 4rem;
    margin-bottom: 0.5rem;
}

.login-title {
    font-size: 2rem;
    margin-bottom: 0.25rem;
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin: 0;
}

.login-error {
    background: rgba(248, 81, 73, 0.12);
    border: 1px solid var(--accent-red);
    border-radius: 10px;
    padding: 0.9rem 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--accent-red);
    font-weight: 600;
    font-size: 1.05rem;
    text-align: center;
}