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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #1a1a2e;
    color: #e0e0e0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background: #16213e;
    padding: 1.5rem 2rem;
    border-bottom: 2px solid #e2b007;
}

header h1 {
    color: #e2b007;
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

#build-info {
    color: #888;
    font-size: 0.85rem;
}

main {
    flex: 1;
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Input */
#input-section label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.input-row {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

#link-input {
    flex: 1;
    padding: 0.6rem 0.8rem;
    font-size: 0.9rem;
    font-family: 'Consolas', 'Monaco', monospace;
    background: #0f3460;
    border: 1px solid #444;
    border-radius: 4px;
    color: #e0e0e0;
    outline: none;
}

#link-input:focus {
    border-color: #e2b007;
}

#calc-btn {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
    background: #e2b007;
    color: #1a1a2e;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
}

#calc-btn:hover {
    background: #f0c030;
}

#calc-btn:disabled {
    opacity: 0.5;
    cursor: default;
}

/* Error */
.error {
    color: #ff6b6b;
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.hidden {
    display: none;
}

/* Examples */
#examples {
    margin-top: 0.75rem;
}

#examples p {
    font-size: 0.85rem;
    color: #888;
    margin-bottom: 0.25rem;
}

#examples-list {
    list-style: none;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

#examples-list a {
    color: #6db3f2;
    font-size: 0.85rem;
    text-decoration: none;
}

#examples-list a:hover {
    text-decoration: underline;
}

/* Result */
#result-section {
    margin-top: 2rem;
}

#result-summary {
    margin-top: 1.25rem;
    padding: 1rem 1.25rem;
    background: #16213e;
    border-radius: 6px;
    border-left: 4px solid #e2b007;
    text-align: center;
}

#result-summary .label {
    font-size: 0.85rem;
    color: #888;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.level-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #e2b007;
    line-height: 1.2;
}

#parsed-info {
    font-size: 0.8rem;
    color: #999;
    line-height: 1.6;
    margin-bottom: 1rem;
}

#parsed-info .info-label {
    color: #666;
}

#parsed-info .info-value {
    color: #ccc;
    font-family: 'Consolas', 'Monaco', monospace;
}

/* Steps */
#step-details {
    margin-top: 1rem;
}

#step-details summary {
    cursor: pointer;
    font-size: 1rem;
    color: #aaa;
    margin-bottom: 0.75rem;
}

.steps {
    list-style: none;
    counter-reset: step;
}

.step {
    counter-increment: step;
    padding: 0.6rem 0.8rem 0.6rem 2.8rem;
    margin-bottom: 0.4rem;
    border-left: 3px solid #444;
    border-radius: 0 4px 4px 0;
    background: #16213e;
    font-size: 0.85rem;
    line-height: 1.5;
    position: relative;
}

.step::before {
    content: counter(step);
    position: absolute;
    left: 0.7rem;
    top: 0.6rem;
    color: #666;
    font-size: 0.8rem;
    font-weight: 600;
}

.step-info { border-left-color: #555; }
.step-scale { border-left-color: #e2b007; }
.step-add { border-left-color: #4caf50; }
.step-set { border-left-color: #2196f3; }
.step-squish { border-left-color: #9c27b0; }
.step-midnight { border-left-color: #9c27b0; }

.val {
    color: #e2b007;
    font-weight: 600;
}

.old {
    color: #888;
    text-decoration: line-through;
}

.bonus-id {
    background: #0f3460;
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.8rem;
}

.tag {
    display: inline-block;
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    font-size: 0.75rem;
    font-weight: 600;
}

.tag.midnight {
    background: #4a148c;
    color: #ce93d8;
}

.detail {
    color: #888;
    font-size: 0.8rem;
}

/* Curve table */
.curve-table {
    margin: 0.4rem 0 0.2rem;
    overflow-x: auto;
}

.curve-table table {
    border-collapse: collapse;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.8rem;
}

.curve-table th {
    text-align: right;
    padding: 0.2rem 0.5rem;
    color: #888;
    font-weight: normal;
}

.curve-table td {
    text-align: center;
    padding: 0.2rem 0.5rem;
    color: #aaa;
}

.curve-table td.curve-match {
    color: #e2b007;
    font-weight: 600;
    background: rgba(226, 176, 7, 0.1);
    border-radius: 3px;
}

/* Footer */
footer {
    padding: 1rem 2rem;
    text-align: center;
    font-size: 0.8rem;
    color: #555;
    border-top: 1px solid #333;
}

footer a {
    color: #6db3f2;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

@media (max-width: 600px) {
    .input-row {
        flex-direction: column;
    }
    main {
        padding: 1rem;
    }
    .level-value {
        font-size: 2rem;
    }
}