/*
 * encrypt.css - encryption and decryption tool styles
 * Tabs, crypto cards, the algorithm picker and key input
 */

/* tabs */
.encrypt-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.encrypt-tabs .tab-item {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 1.1rem;
    background: var(--surface-muted);
    border: 1px solid transparent;
    border-radius: 999px;
    text-decoration: none;
    color: var(--light-text);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.encrypt-tabs .tab-item:hover {
    color: var(--text-color);
    background: #eef2f7;
}

.encrypt-tabs .tab-item.active {
    background: var(--primary-color);
    color: #fff;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
}

/* crypto content area */
.encrypt-content {
    display: none;
    margin-top: 1rem;
}

.encrypt-content.active {
    display: block;
}

/* shared input area */
.input-area {
    margin-bottom: 1.25rem;
}

.input-area textarea {
    width: 100%;
    min-height: 150px;
    padding: 0.9rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    line-height: 1.6;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    resize: vertical;
    background: var(--surface);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input-area textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-soft);
}

/* button groups */
.action-buttons {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-bottom: 1.25rem;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.65rem 1.15rem;
    border: none;
    border-radius: var(--border-radius);
    background: var(--primary-color);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
}

.action-btn:hover {
    background: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
}

.action-btn:active {
    transform: scale(0.98);
}

/* algorithm picker */
.algorithm-select {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    flex-wrap: wrap;
    margin-bottom: 1.25rem;
}

.algorithm-select span {
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
}

.algorithm-buttons {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.algorithm-btn {
    padding: 0.45rem 0.95rem;
    background: var(--surface);
    color: var(--light-text);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.algorithm-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.algorithm-btn.active {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

.algorithm-btn.active:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    color: #fff;
}

/* results */
.result-area {
    margin-top: 1.25rem;
    padding: 1rem 1.25rem;
    background: var(--surface-muted);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    min-height: 80px;
}

.result-content {
    white-space: pre-wrap;
    word-break: break-all;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ========== symmetric encryption ========== */
#symmetric-content .control-area {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}

#symmetric-content .key-input {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

#symmetric-content .key-input .key-input-group {
    display: flex;
    flex-grow: 1;
    min-width: 220px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

#symmetric-content .key-input .key-input-group:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-soft);
}

#symmetric-content .key-input input[type="password"],
#symmetric-content .key-input input[type="text"] {
    flex-grow: 1;
    padding: 0.7rem 0.9rem;
    border: none;
    border-radius: 0;
    outline: none;
    font-size: 0.95rem;
    font-family: var(--font-mono);
}

#symmetric-content .key-input .key-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.7rem 0.8rem;
    background: var(--surface-muted);
    color: var(--light-text);
    border: none;
    border-left: 1px solid var(--border-color);
    cursor: pointer;
    transition: color 0.2s ease, background-color 0.2s ease;
}

#symmetric-content .key-input .key-action-btn:hover {
    color: var(--primary-color);
    background: #eef2f7;
}

#symmetric-content .key-input .action-btn#generate-key {
    background: var(--secondary-color);
    white-space: nowrap;
}

#symmetric-content .key-input .action-btn#generate-key:hover {
    background: var(--secondary-hover);
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.25);
}

#symmetric-content .key-input .action-btn#generate-key i {
    color: #fff;
}

/* ========== asymmetric encryption ========== */
#asymmetric-content .key-generation-area {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

#asymmetric-content .key-generation-area .key-actions {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

#asymmetric-content .key-generation-area .key-actions .action-btn {
    background: var(--secondary-color);
    white-space: nowrap;
}

#asymmetric-content .key-generation-area .key-actions .action-btn:hover {
    background: var(--secondary-hover);
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.25);
}

#asymmetric-content .key-display {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

#asymmetric-content .key-box {
    background: var(--surface-muted);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.1rem;
    position: relative;
}

#asymmetric-content .key-box h3 {
    margin-bottom: 0.75rem;
    color: var(--text-color);
    font-size: 1rem;
    font-weight: 700;
}

#asymmetric-content .key-content {
    white-space: pre-wrap;
    word-break: break-all;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.55;
    color: var(--light-text);
    max-height: 150px;
    overflow-y: auto;
    background: var(--surface);
    padding: 0.75rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

#asymmetric-content .key-box .key-action-btn {
    position: absolute;
    top: 0.9rem;
    right: 0.9rem;
    padding: 0.35rem 0.55rem;
    background: var(--surface);
    color: var(--light-text);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: color 0.2s ease, border-color 0.2s ease;
}

#asymmetric-content .key-box .key-action-btn:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

/* ========== hashing ========== */
#hash-content .hash-options {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    margin-bottom: 1.25rem;
}

#hash-content .key-input#hmac-key-section {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 1.25rem;
}

#hash-content .key-input#hmac-key-section .key-input-group {
    display: flex;
    flex-grow: 1;
    min-width: 220px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

#hash-content .key-input#hmac-key-section .key-input-group:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-soft);
}

#hash-content .key-input#hmac-key-section input {
    flex-grow: 1;
    padding: 0.7rem 0.9rem;
    border: none;
    border-radius: 0;
    outline: none;
    font-size: 0.95rem;
    font-family: var(--font-mono);
}

#hash-content .key-input#hmac-key-section .key-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.7rem 0.8rem;
    background: var(--surface-muted);
    color: var(--light-text);
    border: none;
    border-left: 1px solid var(--border-color);
    cursor: pointer;
    transition: color 0.2s ease, background-color 0.2s ease;
}

#hash-content .key-input#hmac-key-section .key-action-btn:hover {
    color: var(--primary-color);
    background: #eef2f7;
}

#hash-content .key-input#hmac-key-section .action-btn#generate-hmac-key {
    background: var(--secondary-color);
    white-space: nowrap;
}

#hash-content .key-input#hmac-key-section .action-btn#generate-hmac-key:hover {
    background: var(--secondary-hover);
}

/* ========== character conversion ========== */
#convert-content .convert-options {
    margin-bottom: 1.25rem;
}

/* responsive tweaks */
@media (max-width: 768px) {
    .encrypt-tabs {
        gap: 0.4rem;
    }

    .encrypt-tabs .tab-item {
        flex: 1;
        justify-content: center;
        min-width: 130px;
    }

    .action-buttons {
        flex-direction: column;
    }

    .action-btn {
        width: 100%;
        justify-content: center;
    }

    .key-display {
        grid-template-columns: 1fr;
    }
}

/* ========== transient status messages ==========
   The crypto scripts create a short lived .message element for copy confirmations
   and errors. These styles used to live inline in encrypt.html. */
.message {
    position: fixed;
    top: 50%;
    left: 50%;
    min-width: 250px;
    padding: 12px 24px;
    border-radius: 4px;
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    transform: translate(-50%, -50%);
    animation: messageFade 3s ease-in-out;
}

.message.success {
    background-color: #4caf50;
}

.message.error {
    background-color: #f44336;
}

.message.fade-out,
.message.hide {
    opacity: 0;
    transition: opacity 0.3s ease;
}

@keyframes messageFade {
    0% { opacity: 0; transform: translate(-50%, -40%); }
    10% { opacity: 1; transform: translate(-50%, -50%); }
    90% { opacity: 1; transform: translate(-50%, -50%); }
    100% { opacity: 0; transform: translate(-50%, -60%); }
}