/* ============================================================
   nav.css — Top nav bar, Settings page, History page styles
   ============================================================ */

/* Push page content below the fixed nav */
body { padding-top: 90px; }

/* ── Top Nav Bar ─────────────────────────────────────────── */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 90px;
    background: rgba(8, 11, 30, 0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0, 255, 255, 0.18);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    box-sizing: border-box;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: #00ffff;
    font-family: 'Courier New', monospace;
    font-weight: bold;
    font-size: 2rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    transition: none;
}
.nav-logo:hover { text-shadow: none; }

.nav-logo-icon {
    width: 56px;
    height: 56px;
    background-image: url('logo.png');
    background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
    display: inline-block;
    filter: none;
}

.nav-logo-accent { color: #00ff88; }

.top-nav-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Nav buttons */
.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 22px;
    background: transparent;
    border: 1px solid rgba(0, 255, 255, 0.2);
    border-radius: 8px;
    color: rgba(0, 255, 255, 0.8);
    font-family: 'Courier New', monospace;
    font-size: 1.15rem;
    font-weight: bold;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
}
.nav-btn:hover {
    border-color: #00ffff;
    color: #00ffff;
    box-shadow: 0 0 14px rgba(0,255,255,0.25);
    background: rgba(0,255,255,0.05);
}
.nav-btn-active {
    border-color: #00ffff;
    color: #00ffff;
    background: rgba(0, 255, 255, 0.08);
    box-shadow: 0 0 10px rgba(0,255,255,0.2);
}
.nav-btn-primary {
    border-color: rgba(0,255,136,0.4);
    color: #00ff88;
}
.nav-btn-primary:hover {
    border-color: #00ff88;
    color: #00ff88;
    box-shadow: 0 0 14px rgba(0,255,136,0.25);
    background: rgba(0,255,136,0.05);
}

/* User pill */
.nav-user-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 20px;
    background: rgba(0,255,255,0.05);
    border: 1px solid rgba(0,255,255,0.3);
    border-radius: 8px;
    color: #00ffff;
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    font-weight: bold;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    cursor: pointer;
    backdrop-filter: blur(5px);
    transition: border-color 0.25s, box-shadow 0.25s;
    position: relative;
    user-select: none;
}
.nav-user-pill:hover {
    border-color: #00ffff;
    box-shadow: 0 0 14px rgba(0,255,255,0.25);
}
.nav-chevron { transition: transform 0.3s ease; font-size: 0.75rem; }
.nav-chevron.open { transform: rotate(180deg); }

/* Dropdown */
.nav-dropdown-wrap { position: relative; }
.nav-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 160px;
    background: rgba(8, 11, 30, 0.97);
    border: 1px solid rgba(0,255,255,0.25);
    border-radius: 10px;
    padding: 6px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.6);
    z-index: 300;
    animation: dropFade 0.15s ease;
}
.nav-dropdown.nav-dropdown-open { display: block; }
@keyframes dropFade {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}
.nav-dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 9px 12px;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: #00ffff;
    font-family: 'Courier New', monospace;
    font-size: 0.78rem;
    font-weight: bold;
    letter-spacing: 1px;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.2s;
    box-sizing: border-box;
    text-align: left;
}
.nav-dropdown-item:hover { background: rgba(0,255,255,0.08); }
.nav-dropdown-divider {
    height: 1px;
    background: rgba(0,255,255,0.1);
    margin: 4px 0;
}
.nav-logout-btn {
    color: #ff4444;
}
.nav-logout-btn:hover { background: rgba(255,68,68,0.1); }

/* Processing overlay (rendered by nav.php) */
#processingOverlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: transparent;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    animation: overlayFadeIn 0.25s ease forwards;
}
#processingOverlay.visible { display: flex; }
@keyframes overlayFadeIn { from { opacity:0; } to { opacity:1; } }

/* Responsive: hide button text at narrow widths */
@media (max-width: 640px) {
    .nav-btn span { display: none; }
    .nav-btn { padding: 8px 12px; }
    .nav-user-pill span.nav-uname { display: none; }
    .top-nav { padding: 0 16px; height: 60px; }
    body { padding-top: 60px; }
    .nav-logo-icon {
        width: 40px;
        height: 40px;
        background-position: center;
        background-size: contain;
    }
    .nav-logo { font-size: 1.4rem; }
}


/* ============================================================
   SETTINGS PAGE
   ============================================================ */
.settings-page-wrap {
    max-width: 800px;
    margin: 40px auto 80px;
    padding: 0 24px;
    position: relative;
    z-index: 10;
}
.settings-page-title {
    font-size: 2.4rem;
    letter-spacing: 5px;
    color: #00ffff;
    text-transform: uppercase;
    text-shadow: 0 0 24px rgba(0,255,255,0.55);
    margin-bottom: 8px;
}
.settings-page-subtitle {
    color: rgba(0,255,255,0.55);
    font-size: 0.95rem;
    letter-spacing: 2px;
    margin-bottom: 34px;
    text-transform: uppercase;
}

.settings-section {
    background: rgba(10, 14, 39, 0.85);
    border: 1px solid rgba(0, 255, 255, 0.2);
    border-radius: 18px;
    padding: 38px 42px;
    margin-bottom: 28px;
    backdrop-filter: blur(12px);
    transition: border-color 0.3s ease;
}
.settings-section:hover { border-color: rgba(0,255,255,0.38); }
.settings-section-danger { border-color: rgba(255,68,68,0.3); }
.settings-section-danger:hover { border-color: rgba(255,68,68,0.55); }

.settings-section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(0,255,255,0.5);
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(0,255,255,0.1);
    margin-bottom: 28px;
}
.settings-section-title i { font-size: 0.95rem; }

.settings-field { margin-bottom: 24px; }
.settings-field label {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #00ffff;
    font-size: 0.88rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 10px;
    font-weight: bold;
}

.settings-input-wrapper { position: relative; display: flex; align-items: center; }
.settings-input {
    width: 100%;
    padding: 16px 48px 16px 20px;
    background: rgba(0,255,255,0.05);
    border: 1px solid rgba(0,255,255,0.25);
    border-radius: 10px;
    color: #00ffff;
    font-family: 'Courier New', monospace;
    font-size: 1.05rem;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s, background 0.3s;
    box-sizing: border-box;
}
.settings-input:focus {
    border-color: #00ffff;
    background: rgba(0,255,255,0.08);
    box-shadow: 0 0 16px rgba(0,255,255,0.2);
}
.settings-input:read-only {
    border-style: dashed;
    color: rgba(0,255,255,0.45);
    cursor: not-allowed;
    background: rgba(0,255,255,0.02);
}
.settings-toggle-icon {
    position: absolute;
    right: 18px;
    color: rgba(0,255,255,0.4);
    cursor: pointer;
    font-size: 1rem;
    transition: color 0.2s;
    z-index: 2;
}
.settings-toggle-icon:hover { color: #00ffff; }

.settings-readonly-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px;
    border-radius: 999px;
    background: rgba(0,255,255,0.06);
    border: 1px solid rgba(0,255,255,0.15);
    color: rgba(0,255,255,0.4);
    font-size: 0.75rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-weight: normal;
    white-space: nowrap;
}

.settings-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 30px;
    background: transparent;
    border: 1px solid #00ffff;
    border-radius: 8px;
    color: #00ffff;
    font-family: 'Courier New', monospace;
    font-size: 0.92rem;
    font-weight: bold;
    letter-spacing: 2px;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.25s ease;
    margin-top: 8px;
}
.settings-btn:hover {
    background: rgba(0,255,255,0.1);
    box-shadow: 0 0 18px rgba(0,255,255,0.3);
    transform: translateY(-1px);
}
.settings-btn-danger {
    border-color: #ff4444;
    color: #ff4444;
}
.settings-btn-danger:hover {
    background: rgba(255,68,68,0.08);
    box-shadow: 0 0 18px rgba(255,68,68,0.25);
}

/* Alerts */
.settings-alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 18px;
    border-radius: 8px;
    font-size: 0.95rem;
    margin-bottom: 22px;
    animation: alertSlide 0.2s ease;
}
@keyframes alertSlide { from { opacity:0; transform:translateY(-4px); } to { opacity:1; transform:translateY(0); } }
.settings-alert-success {
    background: rgba(0,255,136,0.07);
    border: 1px solid rgba(0,255,136,0.3);
    color: #00ff88;
}
.settings-alert-error {
    background: rgba(255,68,68,0.07);
    border: 1px solid rgba(255,68,68,0.3);
    color: #ff6666;
}

/* Delete Modal */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.75);
    backdrop-filter: blur(6px);
    z-index: 500;
    align-items: center;
    justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal-box {
    background: rgba(10,14,39,0.97);
    border: 2px solid rgba(255,68,68,0.5);
    border-radius: 18px;
    padding: 42px 48px;
    max-width: 480px;
    width: 92vw;
    box-shadow: 0 0 60px rgba(255,68,68,0.2);
    animation: modalSlide 0.25s ease;
}
@keyframes modalSlide {
    from { opacity:0; transform:scale(0.92) translateY(-16px); }
    to   { opacity:1; transform:scale(1) translateY(0); }
}
.modal-box h3 {
    color: #ff4444;
    font-size: 1.3rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 14px;
}
.modal-box p { color: rgba(255,255,255,0.7); font-size: 0.95rem; line-height: 1.6; margin-bottom: 26px; }
.modal-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 22px; }


/* ============================================================
   HISTORY PAGE
   ============================================================ */
.history-page-wrap {
    max-width: 1100px;
    margin: 40px auto 80px;
    padding: 0 24px;
    position: relative;
    z-index: 10;
}
.history-page-title {
    font-size: 3.8rem;
    letter-spacing: 5px;
    color: #00ffff;
    text-transform: uppercase;
    text-shadow: 0 0 24px rgba(0,255,255,0.55);
    margin-bottom: 8px;
}
.history-page-subtitle {
    color: rgba(0,255,255,0.55);
    font-size: 1.35rem;
    letter-spacing: 2px;
    margin-bottom: 34px;
    text-transform: uppercase;
}

.history-filter-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
}
.history-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 22px;
    background: transparent;
    border: 1px solid rgba(0,255,255,0.2);
    border-radius: 8px;
    color: rgba(0,255,255,0.75);
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    font-weight: bold;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
}
.history-filter-btn:hover, .history-filter-btn.active {
    border-color: #00ffff;
    color: #00ffff;
    background: rgba(0,255,255,0.07);
}
.history-clear-btn {
    border-color: rgba(255,68,68,0.3);
    color: #ff4444;
    margin-left: auto;
}
.history-clear-btn:hover {
    border-color: #ff4444;
    background: rgba(255,68,68,0.07);
    color: #ff4444;
}

.history-table-wrap {
    background: rgba(10,14,39,0.85);
    border: 1px solid rgba(0,255,255,0.18);
    border-radius: 18px;
    overflow-x: auto;
    overflow-y: hidden;
    backdrop-filter: blur(12px);
}
.history-table {
    width: 100%;
    border-collapse: collapse;
}
.history-table thead th {
    padding: 16px 18px;
    font-size: 1.2rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(0,255,255,0.55);
    border-bottom: 1px solid rgba(0,255,255,0.12);
    background: rgba(0,255,255,0.03);
    text-align: left;
    white-space: nowrap;
}
.history-table tbody tr { transition: background 0.15s; }
.history-table tbody tr:hover { background: rgba(0,255,255,0.05); }
.history-table tbody td {
    padding: 15px 18px;
    color: rgba(255,255,255,0.9);
    font-size: 1.35rem;
    vertical-align: middle;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.history-table tbody tr:last-child td { border-bottom: none; }

.op-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 14px;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: bold;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}
.op-badge-encode {
    background: rgba(0,255,136,0.08);
    border: 1px solid rgba(0,255,136,0.3);
    color: #00ff88;
}
.op-badge-decode {
    background: rgba(0,255,255,0.08);
    border: 1px solid rgba(0,255,255,0.3);
    color: #00ffff;
}

.history-empty {
    text-align: center;
    padding: 60px 20px;
    color: rgba(0,255,255,0.3);
}
.history-empty i { font-size: 4rem; display: block; margin-bottom: 14px; }
.history-empty p { font-size: 1.2rem; letter-spacing: 2px; text-transform: uppercase; }

.history-pw-mask {
    color: rgba(0,255,255,0.45);
    letter-spacing: 4px;
    font-size: 1.35rem;
    cursor: default;
}

.history-files-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.history-files-list li {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 1.2rem;
    color: rgba(255,255,255,0.8);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 180px;
}
.history-files-list li i { color: rgba(0,255,255,0.4); flex-shrink: 0; }
.history-files-more { font-size: 1rem; color: rgba(0,255,255,0.35); margin-top: 2px; }

.lsb-tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    background: rgba(0,255,255,0.07);
    border: 1px solid rgba(0,255,255,0.2);
    color: rgba(0,255,255,0.7);
    font-size: 1rem;
    font-weight: bold;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.history-date-main { font-size: 1.35rem; color: rgba(255,255,255,0.88); }
.history-date-sub  { font-size: 1.15rem; color: rgba(255,255,255,0.4); margin-top: 3px; }
.history-record-count {
    text-align: right;
    font-size: 1.2rem;
    color: rgba(0,255,255,0.4);
    letter-spacing: 1px;
    margin-top: 14px;
    text-transform: uppercase;
}
.history-cover-cell {
    max-width: 180px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-del-single {
    background: transparent;
    border: none;
    color: rgba(255, 68, 68, 0.4);
    font-size: 1.45rem;
    cursor: pointer;
    transition: all 0.2s;
    padding: 6px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.history-del-single:hover {
    color: #ff4444;
    background: rgba(255, 68, 68, 0.12);
}