/* SHA512-224 interface - full card, 2 columns: inputs left, result right */
.sha512-224-interface {
    margin-bottom: 2rem;
}

.hash-flow-card {
    display: grid;
    grid-template-columns: 1fr;
    background: var(--bs-body-bg, #fff);
    border-radius: 16px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 12px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.06);
}

@media (min-width: 768px) {
    .hash-flow-card {
        grid-template-columns: 1fr 1fr;
        min-height: 420px;
    }
}

.hash-card-column {
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.hash-card-inputs {
    padding: 1.25rem 1.5rem;
}

@media (min-width: 768px) {
    .hash-card-inputs {
        padding: 1.5rem 2rem;
        border-right: 1px solid rgba(0, 0, 0, 0.08);
    }
}

.hash-card-result {
    flex: 1;
}

.hash-card-result .flow-block {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    padding: 1.5rem 2rem;
}

@media (max-width: 767px) {
    .hash-card-result .flow-block {
        padding: 1.25rem 1.5rem;
    }
}

.hash-card-result .output-box {
    flex: 1;
    min-height: 140px;
}

@media (min-width: 768px) {
    .hash-card-result .output-box {
        min-height: 200px;
    }
}

.flow-block {
    padding: 1.25rem 1.5rem;
}

.hash-card-inputs .flow-block {
    padding-left: 0;
    padding-right: 0;
    padding-top: 0;
    padding-bottom: 1rem;
}

.hash-card-inputs .flow-block:first-child {
    padding-top: 0;
}

.hash-card-inputs .flow-block.flow-input {
    padding-bottom: 0.75rem;
}

.hash-card-inputs .flow-block.flow-dropzone {
    padding-top: 0.5rem;
    padding-bottom: 0.75rem;
}

.hash-card-inputs .flow-block.flow-actions {
    padding-bottom: 0;
}

@media (min-width: 768px) {
    .hash-card-inputs {
        padding: 1.5rem 2rem;
    }

    .hash-card-inputs .flow-block {
        padding-left: 0;
        padding-right: 0;
    }
}

.flow-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-muted, #64748b);
    margin-bottom: 0.5rem;
    letter-spacing: 0.02em;
}

.flow-textarea {
    width: 100%;
    min-height: 120px;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--bs-body-color, #1e293b);
    background: var(--bs-body-bg, #fff);
    border: 1px solid rgba(0, 0, 0, 0.12);
    border-radius: 10px;
    resize: vertical;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.flow-textarea::placeholder {
    color: var(--text-muted, #94a3b8);
}

.flow-textarea:hover {
    border-color: rgba(0, 0, 0, 0.2);
}

.flow-textarea:focus {
    outline: none;
    border-color: #0d9488;
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.flow-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.5rem;
    gap: 0.75rem;
}

.flow-char-count {
    font-size: 0.8125rem;
    color: var(--text-muted, #64748b);
}

.flow-btn-text {
    font-size: 0.8125rem;
    font-weight: 500;
    color: #0d9488;
    background: none;
    border: none;
    padding: 0.25rem 0.5rem;
    cursor: pointer;
    border-radius: 6px;
    transition: background 0.2s, color 0.2s;
}

.flow-btn-text:hover {
    background: rgba(13, 148, 136, 0.08);
    color: #0f766e;
}

.flow-divider {
    padding: 0.75rem 0;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.flow-divider::before,
.flow-divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: rgba(0, 0, 0, 0.08);
}

.flow-divider span {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted, #94a3b8);
    text-transform: lowercase;
}

.flow-dropzone {
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}

.dropzone-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 100px;
    padding: 1rem;
    border: 2px dashed rgba(13, 148, 136, 0.35);
    border-radius: 12px;
    background: rgba(13, 148, 136, 0.03);
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.flow-dropzone:hover .dropzone-inner,
.flow-dropzone:focus-within .dropzone-inner {
    border-color: #0d9488;
    background: rgba(13, 148, 136, 0.06);
}

.flow-dropzone.dragover .dropzone-inner {
    border-color: #0d9488;
    background: rgba(13, 148, 136, 0.1);
}

.flow-file-input {
    position: absolute;
    width: 0.1px;
    height: 0.1px;
    opacity: 0;
    overflow: hidden;
    z-index: -1;
}

.dropzone-icon {
    color: #0d9488;
    flex-shrink: 0;
}

.dropzone-text {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-muted, #64748b);
}

.flow-file-list {
    margin-top: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.flow-file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
    background: rgba(0, 0, 0, 0.04);
    border-radius: 8px;
    color: var(--bs-body-color, #334155);
}

.flow-file-item small {
    color: var(--text-muted, #64748b);
}

.flow-actions {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.flow-btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 48px;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    background: #0d9488;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}

.flow-btn-primary:hover:not(:disabled) {
    background: #0f766e;
}

.flow-btn-primary:active:not(:disabled) {
    transform: scale(0.99);
}

.flow-btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

@media (min-width: 480px) {
    .flow-btn-primary {
        width: auto;
        min-width: 160px;
    }
}

.flow-output {
    background: #0f172a;
    color: #e2e8f0;
}

.output-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.flow-output .flow-label {
    color: #94a3b8;
    margin-bottom: 0;
}

.flow-btn-copy {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.875rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: #e2e8f0;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
}

.flow-btn-copy:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.25);
}

.flow-btn-copy:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.flow-btn-copy.copied {
    color: #34d399;
    border-color: rgba(52, 211, 153, 0.4);
}

.copy-icon {
    width: 14px;
    height: 14px;
    background: currentColor;
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Crect x='9' y='9' width='13' height='13' rx='2' ry='2'/%3E%3Cpath d='M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1'/%3E%3C/svg%3E");
    mask-size: contain;
    mask-repeat: no-repeat;
    mask-position: center;
}

.output-box {
    min-height: 80px;
    padding: 1rem;
    font-size: 0.875rem;
    line-height: 1.6;
    word-break: break-all;
    white-space: pre-wrap;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.output-placeholder {
    color: #64748b;
}

.output-box.has-hash {
    color: #34d399;
}

.output-box.has-hash .output-placeholder {
    display: none;
}

.output-meta {
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: #64748b;
}