/* ── cipher_rsa.css — page-specific overrides & unique styles ── */

.header { margin-bottom: 2rem; }
.prompt-line { margin-bottom: 2rem; }

/* ── Key pair panel ── */
.keys-panel {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg2);
    padding: 16px 16px 18px;
    margin-bottom: 2rem;
}
.keys-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}
.keys-title .field-label { margin-bottom: 0; }
.keys-note {
    font-size: 0.72rem;
    color: var(--text-dim);
    line-height: 1.6;
    margin-top: 12px;
}

/* ── Tab switcher ── */
.tab-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}
.tab-btn {
    font-family: inherit;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: transparent;
    border: none;
    color: var(--accent);
    padding: 8px 16px 10px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: color 0.15s, border-color 0.15s;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active {
    color: var(--text-bright);
    border-bottom-color: var(--text-bright);
}

/* ── Panels ── */
.panel { display: none; }
.panel.active { display: block; }

.panel-note {
    font-size: 0.75rem;
    color: var(--text-dim);
    line-height: 1.7;
    margin-bottom: 1.6rem;
    padding-left: 2px;
}

/* ── Inputs ── */
.field { margin-bottom: 1.4rem; }

textarea, .key-wrap input {
    width: 100%;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.88rem;
    padding: 12px 14px;
    resize: vertical;
    transition: border-color 0.15s;
    line-height: 1.6;
}
textarea { min-height: 110px; }
textarea.key-area { min-height: 84px; font-size: 0.78rem; word-break: break-all; }
textarea:focus, .key-wrap input:focus {
    outline: none;
    border-color: var(--border-hover);
}
textarea::placeholder, .key-wrap input::placeholder { color: var(--text-dim); }

/* ── Key row ── */
.key-wrap {
    display: flex;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background: var(--bg2);
    transition: border-color 0.15s;
}
.key-wrap:focus-within { border-color: var(--border-hover); }
.key-wrap input {
    flex: 1;
    border: none;
    border-radius: 0;
    background: transparent;
    padding: 11px 14px;
}
.key-action-btn {
    font-family: inherit;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: transparent;
    border: none;
    border-left: 1px solid var(--border);
    color: var(--accent);
    padding: 0 14px;
    cursor: pointer;
    transition: color 0.15s, background 0.15s;
    white-space: nowrap;
}
.key-action-btn:hover { color: var(--text); background: var(--bg3); }
.key-action-btn:active { color: var(--text-bright); }

/* ── Small action buttons (copy / save / load) ── */
.mini-actions { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.mini-btn {
    font-family: inherit;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--accent);
    padding: 5px 12px;
    border-radius: 4px;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}
.mini-btn:hover { color: var(--text); border-color: var(--border-hover); }
.mini-btn:active { color: var(--text-bright); }

/* ── Gen key button ── */
.gen-key-btn {
    font-family: inherit;
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--accent);
    padding: 9px 20px;
    border-radius: 6px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: color 0.15s, border-color 0.15s;
}
.gen-key-btn::before { content: '$'; color: var(--text-dim); }
.gen-key-btn:hover:not(:disabled) { color: var(--text); border-color: var(--border-hover); }
.gen-key-btn:active:not(:disabled) { color: var(--text-bright); }
.gen-key-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Run button ── */
.run-btn { margin-top: 0.4rem; }
.run-btn::before { content: '▶'; font-size: 0.7rem; color: var(--text-dim); }

/* ── Source switch (text / file) ── */
.source-switch { display: flex; gap: 6px; margin-bottom: 1.2rem; }
.source-btn {
    font-family: inherit;
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--accent);
    padding: 6px 14px;
    border-radius: 4px;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.source-btn:hover { color: var(--text); border-color: var(--border-hover); }
.source-btn.active {
    color: var(--text-bright);
    border-color: var(--border-hover);
    background: var(--bg3);
}

/* ── File picker ── */
.file-input { display: none; }
.file-drop {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: 1px dashed var(--border-hover);
    border-radius: 8px;
    background: var(--bg2);
    color: var(--accent);
    font-size: 0.8rem;
    padding: 22px 16px;
    cursor: pointer;
    text-align: center;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.file-drop:hover { color: var(--text); background: var(--bg3); }
.file-drop.filled { color: var(--text); border-style: solid; }

/* ── Result block ── */
.result-block {
    display: none;
    margin-top: 1.8rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    animation: fadeIn 0.2s ease-out;
}
.result-block.error { border-color: var(--err-border); }

.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 8px 14px;
    background: var(--bg2);
    border-bottom: 1px solid var(--border);
}
.result-block.error .result-header { background: var(--err-bg); border-bottom-color: var(--err-border-soft); }

.result-label {
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
}
.result-block.error .result-label { color: var(--err-text); }

.result-actions { display: flex; gap: 6px; }

.copy-btn {
    font-family: inherit;
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--accent);
    padding: 4px 12px;
    border-radius: 4px;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}
.copy-btn:hover { color: var(--text); border-color: var(--text-dim); }
.copy-btn.copied { color: var(--text-bright); border-color: var(--text-bright); }

.result-body {
    padding: 14px;
    font-size: 0.85rem;
    color: var(--text);
    word-break: break-all;
    white-space: pre-wrap;
    background: var(--bg2);
    line-height: 1.7;
    max-height: 340px;
    overflow-y: auto;
}
.result-block.error .result-body { color: var(--err-text); }

/* ── Verify verdict ── */
.verdict {
    display: none;
    align-items: center;
    gap: 10px;
    margin-top: 1.8rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg2);
    padding: 16px 18px;
    font-size: 0.9rem;
    letter-spacing: 0.04em;
    animation: fadeIn 0.2s ease-out;
}
.verdict.shown { display: flex; }
.verdict-mark { font-size: 1.1rem; line-height: 1; }
.verdict.valid { border-color: var(--ok); color: var(--ok); }
.verdict.invalid { border-color: var(--err-border); color: var(--err-text); background: var(--err-bg); }