/* ===================================================================
   SHARE — Quantum-Safe Encrypted Messaging
   Theme: Deep navy + cyan transmission aesthetic
   =================================================================== */

:root {
    --share-bg:         #040810;
    --share-surface:    #080f1c;
    --share-card:       #0c1526;
    --share-border:     rgba(0, 212, 255, 0.15);
    --share-border-hi:  rgba(0, 212, 255, 0.45);
    --share-cyan:       #00d4ff;
    --share-cyan-dim:   rgba(0, 212, 255, 0.12);
    --share-green:      #00ff88;
    --share-green-dim:  rgba(0, 255, 136, 0.1);
    --share-purple:     #7c3aed;
    --share-red:        #ff4757;
    --share-text:       #e2e8f0;
    --share-muted:      #64748b;
    --share-glow:       0 0 30px rgba(0, 212, 255, 0.2);
    --share-glow-green: 0 0 30px rgba(0, 255, 136, 0.25);
    --transition:       0.25s ease;
}

/* ─── Reset / Base ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { height: 100%; scroll-behavior: smooth; }

body {
    font-family: 'Courier New', 'Menlo', monospace;
    background: var(--share-bg);
    color: var(--share-text);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ─── Page Header ────────────────────────────────────────────────── */
.share-page-header {
    background: linear-gradient(135deg, #030912 0%, #040d1e 50%, #030a14 100%);
    padding: 1.6rem 1.5rem;
    border-bottom: 2px solid rgba(0, 212, 255, 0.3);
    box-shadow: 0 4px 24px rgba(0, 212, 255, 0.15);
    position: relative;
    z-index: 50;
}

.share-page-header::after {
    content: '';
    position: absolute;
    bottom: -2px; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--share-cyan), var(--share-green), transparent);
}

.header-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.header-logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.header-logo-link:hover { transform: scale(1.05); }

.header-logo-img {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    border: 2px solid rgba(0, 212, 255, 0.4);
    box-shadow: 0 0 16px rgba(0, 212, 255, 0.25);
    object-fit: cover;
}

.header-text { flex: 1; }

.share-title {
    font-size: clamp(1.5rem, 3.5vw, 2.2rem);
    font-weight: 800;
    letter-spacing: 0.03em;
    background: linear-gradient(135deg, var(--share-cyan), var(--share-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    margin-bottom: 0.3rem;
}

.share-subtitle {
    color: var(--share-muted);
    font-size: 0.88rem;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    margin-bottom: 0.7rem;
}

/* ─── Layout ─────────────────────────────────────────────────────── */
.share-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 40px 20px 60px;
    position: relative;
    z-index: 1;
}


/* ─── Algorithm badge row ────────────────────────────────────────── */
.algo-badge-row {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 14px;
    margin-bottom: 4px;
}

.algo-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: rgba(124, 58, 237, 0.12);
    border: 1px solid rgba(124, 58, 237, 0.35);
    border-radius: 6px;
    padding: 5px 12px;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    font-family: 'Courier New', monospace;
}

.algo-badge-secondary {
    background: rgba(0, 212, 255, 0.08);
    border-color: rgba(0, 212, 255, 0.25);
}

.algo-badge-icon { font-size: 0.9rem; }

.algo-badge-name {
    color: #c4b5fd;
    font-weight: 600;
}

.algo-badge-secondary .algo-badge-name { color: var(--share-cyan); }

.algo-badge-sep {
    color: var(--share-muted);
    font-size: 0.7rem;
}

/* ─── Zero-knowledge badge ───────────────────────────────────────── */
.zk-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--share-green-dim);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: 20px;
    padding: 6px 16px;
    font-size: 0.78rem;
    color: var(--share-green);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-top: 16px;
}

.zk-dot {
    width: 7px;
    height: 7px;
    background: var(--share-green);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
    flex-shrink: 0;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.4; transform: scale(0.7); }
}

/* ─── Main card ──────────────────────────────────────────────────── */
.share-card {
    width: 100%;
    max-width: 860px;
    background: var(--share-card);
    border: 1px solid var(--share-border);
    border-radius: 16px;
    padding: 36px;
    box-shadow: var(--share-glow);
    animation: fadeInUp 0.5s ease 0.1s both;
    position: relative;
    overflow: hidden;
}

.share-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--share-cyan), transparent);
    animation: scanLine 3s ease-in-out infinite;
}

@keyframes scanLine {
    0%   { transform: translateX(-100%); opacity: 0; }
    50%  { opacity: 1; }
    100% { transform: translateX(100%); opacity: 0; }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ─── Section label ──────────────────────────────────────────────── */
.section-label {
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--share-cyan);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--share-border);
}

/* ─── Textarea ───────────────────────────────────────────────────── */
.message-area-wrap {
    position: relative;
    margin-bottom: 24px;
}

.message-textarea {
    width: 100%;
    min-height: 180px;
    background: var(--share-surface);
    border: 1px solid var(--share-border);
    border-radius: 10px;
    color: var(--share-text);
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    line-height: 1.6;
    padding: 16px;
    resize: vertical;
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.message-textarea::placeholder {
    color: var(--share-muted);
}

.message-textarea:focus {
    border-color: var(--share-border-hi);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.08);
}

.message-textarea.textarea-error {
    border-color: rgba(255, 71, 87, 0.5);
    box-shadow: 0 0 0 3px rgba(255, 71, 87, 0.08);
}

/* ─── Clipboard utility — positions element off-screen without inline styles ── */
.clipboard-offscreen {
    position: fixed;
    top: -9999px;
    left: -9999px;
    opacity: 0;
    pointer-events: none;
}

.char-counter {
    position: absolute;
    bottom: 10px;
    right: 12px;
    font-size: 0.72rem;
    color: var(--share-muted);
    pointer-events: none;
    transition: color var(--transition);
}

.char-counter.warning { color: #f59e0b; }
.char-counter.danger  { color: var(--share-red); }

/* ─── Options row ────────────────────────────────────────────────── */
.options-row {
    display: flex;
    gap: 16px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.option-group {
    flex: 1;
    min-width: 160px;
}

.option-label {
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--share-muted);
    margin-bottom: 8px;
    display: block;
}

.option-select {
    width: 100%;
    background: var(--share-surface);
    border: 1px solid var(--share-border);
    border-radius: 8px;
    color: var(--share-text);
    font-family: inherit;
    font-size: 0.88rem;
    padding: 10px 14px;
    outline: none;
    cursor: pointer;
    transition: border-color var(--transition);
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.option-select:focus {
    border-color: var(--share-border-hi);
}

/* ─── Burn toggle ────────────────────────────────────────────────── */
.burn-toggle-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--share-surface);
    border: 1px solid var(--share-border);
    border-radius: 8px;
    padding: 10px 14px;
    cursor: pointer;
    transition: border-color var(--transition);
    user-select: none;
}

.burn-toggle-wrap:hover { border-color: var(--share-border-hi); }

.burn-toggle-wrap.active {
    border-color: rgba(255, 71, 87, 0.4);
    background: rgba(255, 71, 87, 0.06);
}

.toggle-switch {
    position: relative;
    width: 36px;
    height: 20px;
    flex-shrink: 0;
}

.toggle-switch input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-track {
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.08);
    border-radius: 10px;
    transition: background var(--transition);
    cursor: pointer;
}

.toggle-track::after {
    content: '';
    position: absolute;
    width: 14px;
    height: 14px;
    background: var(--share-muted);
    border-radius: 50%;
    top: 3px;
    left: 3px;
    transition: transform var(--transition), background var(--transition);
}

.toggle-switch input:checked ~ .toggle-track {
    background: rgba(255, 71, 87, 0.35);
}

.toggle-switch input:checked ~ .toggle-track::after {
    transform: translateX(16px);
    background: var(--share-red);
}

.burn-label {
    font-size: 0.85rem;
    color: var(--share-text);
}

.burn-label span {
    display: block;
    font-size: 0.72rem;
    color: var(--share-muted);
    margin-top: 2px;
}

/* ─── Encrypt button ─────────────────────────────────────────────── */
.btn-encrypt {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(124,58,237,0.15));
    border: 1px solid var(--share-border-hi);
    border-radius: 10px;
    color: var(--share-cyan);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-encrypt::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0,212,255,0.1), rgba(124,58,237,0.1));
    opacity: 0;
    transition: opacity var(--transition);
}

.btn-encrypt:hover::before { opacity: 1; }

.btn-encrypt:hover {
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
    transform: translateY(-1px);
}

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

.btn-encrypt:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-icon {
    font-size: 1.2rem;
}

/* ─── Spinner ────────────────────────────────────────────────────── */
.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(0,212,255,0.2);
    border-top-color: var(--share-cyan);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    flex-shrink: 0;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Result view ────────────────────────────────────────────────── */
.result-card {
    width: 100%;
    max-width: 860px;
    background: var(--share-card);
    border: 1px solid rgba(0, 255, 136, 0.3);
    border-radius: 16px;
    padding: 36px;
    box-shadow: var(--share-glow-green);
    animation: fadeInUp 0.4s ease;
}

.result-success-banner {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
    padding: 16px;
    background: var(--share-green-dim);
    border: 1px solid rgba(0,255,136,0.2);
    border-radius: 10px;
}

.result-check {
    font-size: 1.8rem;
    flex-shrink: 0;
    animation: checkBounce 0.4s ease 0.2s both;
}

@keyframes checkBounce {
    0%   { transform: scale(0); }
    70%  { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.result-banner-text strong {
    display: block;
    color: var(--share-green);
    font-size: 1rem;
    letter-spacing: 0.06em;
    margin-bottom: 4px;
}

.result-banner-text span {
    color: var(--share-muted);
    font-size: 0.82rem;
}

/* ─── Share URL box ──────────────────────────────────────────────── */
.share-url-wrap {
    margin-bottom: 20px;
}

.share-url-box {
    display: flex;
    align-items: stretch;
    background: var(--share-surface);
    border: 1px solid var(--share-border);
    border-radius: 10px;
    overflow: hidden;
}

.share-url-text {
    flex: 1;
    padding: 14px 16px;
    font-size: 0.82rem;
    color: var(--share-cyan);
    word-break: break-all;
    line-height: 1.5;
    overflow-wrap: anywhere;
    cursor: text;
    user-select: all;
}

.btn-copy {
    padding: 14px 20px;
    background: rgba(0,212,255,0.1);
    border: none;
    border-left: 1px solid var(--share-border);
    color: var(--share-cyan);
    font-family: inherit;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
    flex-shrink: 0;
    min-width: 80px;
    text-align: center;
}

.btn-copy:hover { background: rgba(0,212,255,0.2); }

.btn-copy.copied {
    color: var(--share-green);
    background: rgba(0,255,136,0.1);
}

/* ─── Metadata pills ─────────────────────────────────────────────── */
.meta-pills {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.meta-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.76rem;
    letter-spacing: 0.05em;
    border: 1px solid;
}

.meta-pill.expiry {
    color: #f59e0b;
    border-color: rgba(245,158,11,0.3);
    background: rgba(245,158,11,0.06);
}

.meta-pill.burn {
    color: var(--share-red);
    border-color: rgba(255,71,87,0.3);
    background: rgba(255,71,87,0.06);
}

.meta-pill.algo {
    color: var(--share-cyan);
    border-color: var(--share-border);
    background: var(--share-cyan-dim);
}

/* ─── New message button ─────────────────────────────────────────── */
.btn-new {
    width: 100%;
    padding: 13px;
    background: transparent;
    border: 1px solid var(--share-border);
    border-radius: 10px;
    color: var(--share-muted);
    font-family: inherit;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition);
    letter-spacing: 0.05em;
}

.btn-new:hover {
    border-color: var(--share-border-hi);
    color: var(--share-text);
}

/* ─── Decrypt view ───────────────────────────────────────────────── */
.decrypt-card {
    width: 100%;
    max-width: 860px;
    background: var(--share-card);
    border: 1px solid var(--share-border);
    border-radius: 16px;
    padding: 36px;
    box-shadow: var(--share-glow);
    animation: fadeInUp 0.5s ease;
}

/* Receiving animation */
.decrypt-loading {
    text-align: center;
    padding: 40px 0;
}

.decrypt-loading-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 16px;
    animation: receiving 1.5s ease-in-out infinite;
}

@keyframes receiving {
    0%   { opacity: 0.4; transform: scale(0.95); }
    50%  { opacity: 1;   transform: scale(1.05); }
    100% { opacity: 0.4; transform: scale(0.95); }
}

.decrypt-loading-text {
    color: var(--share-cyan);
    font-size: 0.9rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.decrypt-loading-subtext {
    color: var(--share-muted);
    font-size: 0.78rem;
    margin-top: 8px;
}

/* Decrypted message box */
.decrypted-message-wrap {
}

.decrypt-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 24px;
    padding: 16px;
    background: var(--share-green-dim);
    border: 1px solid rgba(0,255,136,0.2);
    border-radius: 10px;
}

.decrypt-header-icon { font-size: 1.6rem; }

.decrypt-header-text strong {
    display: block;
    color: var(--share-green);
    font-size: 0.95rem;
    letter-spacing: 0.06em;
    margin-bottom: 3px;
}

.decrypt-header-text span {
    font-size: 0.78rem;
    color: var(--share-muted);
}

.decrypted-message-box {
    background: var(--share-surface);
    border: 1px solid var(--share-border);
    border-radius: 10px;
    padding: 20px;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--share-text);
    white-space: pre-wrap;
    word-break: break-word;
    margin-bottom: 20px;
    min-height: 80px;
    position: relative;
    overflow: hidden;
}

/* Typewriter reveal */
.decrypted-message-box.revealing {
    animation: textReveal 0.6s ease;
}

@keyframes textReveal {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ─── Error state ────────────────────────────────────────────────── */
.error-card {
    width: 100%;
    max-width: 860px;
    background: var(--share-card);
    border: 1px solid rgba(255,71,87,0.3);
    border-radius: 16px;
    padding: 36px;
    text-align: center;
    animation: fadeInUp 0.4s ease;
}

.error-icon { font-size: 3rem; margin-bottom: 16px; display: block; }

.error-title {
    font-size: 1.2rem;
    color: var(--share-red);
    margin-bottom: 10px;
    letter-spacing: 0.06em;
}

.error-message {
    color: var(--share-muted);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 24px;
}

.btn-back-home {
    display: inline-block;
    padding: 12px 28px;
    background: var(--share-cyan-dim);
    border: 1px solid var(--share-border-hi);
    border-radius: 8px;
    color: var(--share-cyan);
    font-family: inherit;
    font-size: 0.9rem;
    text-decoration: none;
    letter-spacing: 0.06em;
    transition: all var(--transition);
    cursor: pointer;
}

.btn-back-home:hover {
    background: rgba(0,212,255,0.2);
    box-shadow: 0 0 16px rgba(0,212,255,0.2);
}

/* ─── Destroy button ─────────────────────────────────────────────── */
.btn-destroy {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 1px solid rgba(255,71,87,0.3);
    border-radius: 8px;
    color: rgba(255,71,87,0.7);
    font-family: inherit;
    font-size: 0.82rem;
    cursor: pointer;
    transition: all var(--transition);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.btn-destroy:hover {
    border-color: var(--share-red);
    color: var(--share-red);
    background: rgba(255,71,87,0.06);
}

/* ─── CTA at bottom of decrypt ───────────────────────────────────── */
.decrypt-cta {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--share-border);
}

.decrypt-cta p {
    color: var(--share-muted);
    font-size: 0.82rem;
    margin-bottom: 12px;
}

.btn-send-own {
    display: inline-block;
    padding: 11px 28px;
    background: linear-gradient(135deg, rgba(0,212,255,0.1), rgba(124,58,237,0.1));
    border: 1px solid var(--share-border-hi);
    border-radius: 8px;
    color: var(--share-cyan);
    font-family: inherit;
    font-size: 0.88rem;
    text-decoration: none;
    letter-spacing: 0.07em;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-send-own:hover {
    box-shadow: 0 0 16px rgba(0,212,255,0.25);
    background: linear-gradient(135deg, rgba(0,212,255,0.18), rgba(124,58,237,0.18));
}

/* ─── Security spec panel ────────────────────────────────────────── */
.sec-spec-panel {
    width: 100%;
    max-width: 860px;
    margin-top: 28px;
    animation: fadeInUp 0.5s ease 0.3s both;
}

.sec-spec-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: var(--share-card);
    border: 1px solid rgba(124, 58, 237, 0.25);
    border-radius: 12px 12px 0 0;
    padding: 20px 24px;
    position: relative;
}

.sec-spec-header-icon {
    font-size: 2rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.sec-spec-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #c4b5fd;
    letter-spacing: 0.04em;
    margin: 0 0 6px;
    padding: 0;
}

.sec-spec-subtitle {
    font-size: 0.8rem;
    color: var(--share-muted);
    line-height: 1.55;
}

.nist-level-badge {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: linear-gradient(135deg, rgba(124,58,237,0.25), rgba(0,212,255,0.15));
    border: 1px solid rgba(124, 58, 237, 0.5);
    border-radius: 10px;
    padding: 10px 16px;
    text-align: center;
    min-width: 64px;
}

.nist-level-num {
    font-size: 2rem;
    font-weight: 900;
    background: linear-gradient(135deg, #c4b5fd, var(--share-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 4px;
}

.nist-level-label {
    font-size: 0.65rem;
    color: var(--share-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    line-height: 1.3;
}

/* ─── Algorithm table ────────────────────────────────────────────── */
.algo-table {
    background: var(--share-surface);
    border: 1px solid var(--share-border);
    border-top: none;
    overflow-x: auto;
}

.algo-row {
    display: grid;
    grid-template-columns: 2fr 1.2fr 1.6fr 1fr 1.4fr;
    gap: 0;
    padding: 10px 24px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    align-items: center;
    font-size: 0.8rem;
}

.algo-row:last-child { border-bottom: none; }

.algo-row-header {
    font-size: 0.68rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--share-muted);
    background: rgba(0,0,0,0.2);
    padding-top: 8px;
    padding-bottom: 8px;
}

.algo-row-secondary {
    opacity: 0.65;
}

.algo-name  { color: var(--share-text); font-weight: 600; font-family: 'Courier New', monospace; font-size: 0.78rem; }
.algo-fips  { color: var(--share-muted); }
.algo-role  { color: var(--share-muted); }

.algo-level {
    font-weight: 700;
    font-size: 0.76rem;
    letter-spacing: 0.05em;
}

.level-5 {
    background: linear-gradient(135deg, #c4b5fd, var(--share-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.level-c { color: var(--share-muted); }

.algo-threat { font-size: 0.75rem; }
.threat-safe    { color: var(--share-green); }
.threat-partial { color: #f59e0b; }
.threat-warn    { color: #f59e0b; }

.sec-spec-note {
    font-size: 0.72rem;
    color: var(--share-muted);
    padding: 0.6rem 1rem 0.8rem;
    border-top: 1px solid var(--share-border);
    line-height: 1.5;
}

/* ─── Classical vs PQC comparison ───────────────────────────────── */
.sec-spec-compare {
    display: flex;
    align-items: stretch;
    gap: 0;
    border: 1px solid var(--share-border);
    border-top: none;
    border-radius: 0;
    overflow: hidden;
}

.compare-item {
    flex: 1;
    display: flex;
    gap: 12px;
    padding: 16px 20px;
    background: rgba(255, 71, 87, 0.04);
    align-items: flex-start;
}

.compare-item-safe {
    background: rgba(0, 255, 136, 0.04);
    border-left: 1px solid var(--share-border);
}

.compare-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 14px;
    background: var(--share-surface);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--share-muted);
    letter-spacing: 0.1em;
    flex-shrink: 0;
    border-left: 1px solid var(--share-border);
    border-right: 1px solid var(--share-border);
}

.compare-icon { font-size: 1.3rem; flex-shrink: 0; margin-top: 1px; }

.compare-item strong {
    display: block;
    font-size: 0.8rem;
    color: rgba(255, 71, 87, 0.9);
    margin-bottom: 4px;
}

.compare-item-safe strong { color: var(--share-green); }

.compare-item span {
    font-size: 0.75rem;
    color: var(--share-muted);
    line-height: 1.5;
}

/* ─── Info strip ─────────────────────────────────────────────────── */
.info-strip {
    width: 100%;
    max-width: 860px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border: 1px solid var(--share-border);
    border-top: none;
    border-radius: 0 0 12px 12px;
    overflow: hidden;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 16px 18px;
    background: rgba(255,255,255,0.02);
    border-right: 1px solid var(--share-border);
    border-bottom: 1px solid var(--share-border);
}

/* right column: no right border */
.info-item:nth-child(even) { border-right: none; }

/* last row: no bottom border */
.info-item:nth-last-child(-n+2) { border-bottom: none; }

/* if odd total, last item spans both columns */
.info-item:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    border-right: none;
}

.info-item-icon { font-size: 1.2rem; flex-shrink: 0; margin-top: 1px; }

.info-item-text strong {
    display: block;
    font-size: 0.78rem;
    color: var(--share-text);
    letter-spacing: 0.06em;
    margin-bottom: 3px;
}

.info-item-text span {
    font-size: 0.72rem;
    color: var(--share-muted);
    line-height: 1.4;
}

/* ─── Timeout countdown badge ────────────────────────────────────── */
.timeout-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    margin-bottom: 12px;
    border-radius: 8px;
    font-size: 0.82rem;
    letter-spacing: 0.05em;
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.35);
    color: #f59e0b;
    animation: timeoutPulse 2s ease-in-out infinite;
}

.timeout-badge-idle {
    background: rgba(124, 58, 237, 0.08);
    border-color: rgba(124, 58, 237, 0.35);
    color: #c4b5fd;
    animation: idlePulse 3s ease-in-out infinite;
}

.timeout-badge.urgent {
    background: rgba(255, 71, 87, 0.1);
    border-color: rgba(255, 71, 87, 0.5);
    color: var(--share-red);
    animation: urgentPulse 0.8s ease-in-out infinite;
}

@keyframes timeoutPulse {
    0%, 100% { opacity: 0.85; }
    50%       { opacity: 1; }
}

@keyframes idlePulse {
    0%, 100% { opacity: 0.7; }
    50%       { opacity: 1; }
}

@keyframes urgentPulse {
    0%, 100% { opacity: 1;    transform: scale(1); }
    50%       { opacity: 0.8; transform: scale(1.01); }
}

/* ─── Page Footer ────────────────────────────────────────────────── */
.share-page-footer {
    background: linear-gradient(135deg, #030912 0%, #040d1e 100%);
    border-top: 1px solid rgba(0, 212, 255, 0.15);
    padding: 1.8rem 1.5rem;
    position: relative;
    z-index: 10;
    margin-top: auto;
}

.footer-inner {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 1.2rem;
    list-style: none;
}

.share-footer-link {
    color: var(--share-muted);
    text-decoration: none;
    font-size: 0.82rem;
    transition: color var(--transition);
    letter-spacing: 0.03em;
}

.share-footer-link:hover { color: var(--share-cyan); }

.footer-copy {
    font-size: 0.78rem;
    color: var(--share-muted);
}

.footer-wp-link {
    font-size: 0.78rem;
    color: var(--share-muted);
    margin-top: 0.3rem;
}

.footer-wp-anchor {
    color: var(--share-cyan);
    text-decoration: none;
    border-bottom: 1px solid rgba(0,212,255,0.3);
    transition: color 0.2s, border-color 0.2s;
}

.footer-wp-anchor:hover {
    color: var(--share-green);
    border-bottom-color: rgba(0,255,136,0.4);
}

/* ─── Hidden utility ─────────────────────────────────────────────── */
.hidden { display: none !important; }

/* ─── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 700px) {
    .share-wrapper  { padding: 24px 12px 40px; }
    .share-card,
    .result-card,
    .decrypt-card,
    .error-card     { padding: 24px 18px; }
    .options-row    { flex-direction: column; }
    .info-strip     { grid-template-columns: 1fr; }
    .info-item      { border-right: none; border-bottom: 1px solid var(--share-border); }
    .info-item:nth-child(even) { border-right: none; }
    .info-item:nth-last-child(-n+2) { border-bottom: 1px solid var(--share-border); }
    .info-item:last-child { border-bottom: none; }
    .info-item:last-child:nth-child(odd) { grid-column: auto; }
    .share-url-box  { flex-direction: column; }
    .btn-copy       { border-left: none; border-top: 1px solid var(--share-border); }
    .sec-spec-header { flex-wrap: wrap; }
    .nist-level-badge { margin-left: auto; }
    .sec-spec-compare { flex-direction: column; }
    .compare-arrow  { padding: 8px; border: none; border-top: 1px solid var(--share-border); border-bottom: 1px solid var(--share-border); }
    .compare-item-safe { border-left: none; border-top: 1px solid var(--share-border); }
    .algo-row { grid-template-columns: 1.8fr 1fr 1.4fr 0.8fr 1.2fr; padding: 8px 12px; font-size: 0.72rem; }
    .algo-name { font-size: 0.7rem; }
    .header-inner { gap: 1rem; }
    .header-logo-img { width: 48px; height: 48px; }
}