/* ============================================================
   Forever - Secret Messaging Platform
   Sci-Fi / Hacker Theme CSS
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&family=Rajdhani:wght@300;400;500;600;700&family=Orbitron:wght@400;500;700;900&display=swap');

:root {
    --bg-void: #030508;
    --bg-deep: #080c10;
    --bg-card: #0d1117;
    --bg-panel: #111820;
    --bg-input: #0a0f14;
    --border: #1a2530;
    --border-glow: #00ff8844;
    --accent: #00ff88;
    --accent-dim: #00ff8866;
    --accent-faint: #00ff8811;
    --accent2: #00d4ff;
    --accent2-dim: #00d4ff44;
    --danger: #ff4444;
    --warn: #ffaa00;
    --text-primary: #e8f5e9;
    --text-secondary: #7a9a8a;
    --text-muted: #3a5040;
    --font-mono: 'Share Tech Mono', monospace;
    --font-body: 'Rajdhani', sans-serif;
    --font-display: 'Orbitron', monospace;
    --glow: 0 0 20px #00ff8833;
    --glow-strong: 0 0 30px #00ff8866, 0 0 60px #00ff8822;
    --radius: 6px;
    --transition: 0.2s ease;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    height: 100%;
    background: var(--bg-void);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 15px;
    overflow-x: hidden;
}

/* Scanline effect */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0,255,136,0.012) 2px,
        rgba(0,255,136,0.012) 4px
    );
    pointer-events: none;
    z-index: 9999;
}

/* Scrollbar */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg-void); }
::-webkit-scrollbar-thumb { background: var(--accent-dim); border-radius: 2px; }

/* ── TYPOGRAPHY ── */
h1, h2, h3 { font-family: var(--font-display); letter-spacing: 2px; }
.mono { font-family: var(--font-mono); }

/* ── AUTH PAGES ── */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(0,255,136,0.05) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(0,212,255,0.04) 0%, transparent 50%),
        var(--bg-void);
}

.auth-wrapper::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(0,255,136,0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,255,136,0.06) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    animation: gridDrift 20s linear infinite;
}

@keyframes gridDrift {
    0% { transform: translate(0,0); }
    100% { transform: translate(40px, 40px); }
}

.auth-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 44px 40px;
    width: 100%;
    max-width: 440px;
    position: relative;
    z-index: 1;
    box-shadow: 0 0 60px rgba(0,255,136,0.08), inset 0 1px 0 rgba(255,255,255,0.04);
}

.auth-box::before {
    content: '';
    position: absolute;
    top: 0; left: 20px; right: 20px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0.6;
}

.auth-logo {
    text-align: center;
    margin-bottom: 36px;
}

.auth-logo .logo-symbol {
    font-family: var(--font-display);
    font-size: 36px;
    font-weight: 900;
    color: var(--accent);
    text-shadow: var(--glow-strong);
    letter-spacing: 8px;
    display: block;
    line-height: 1;
}

.auth-logo .logo-tagline {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--accent-dim);
    letter-spacing: 6px;
    display: block;
    margin-top: 8px;
}

.auth-title {
    font-size: 14px;
    color: var(--text-secondary);
    letter-spacing: 4px;
    font-family: var(--font-mono);
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.auth-title::before, .auth-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

/* ── FORM ELEMENTS ── */
.form-group { margin-bottom: 18px; }

.form-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--accent-dim);
    letter-spacing: 3px;
    margin-bottom: 8px;
    text-transform: uppercase;
}

.form-control {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 14px;
    padding: 12px 16px;
    outline: none;
    transition: var(--transition);
    letter-spacing: 1px;
}

.form-control:focus {
    border-color: var(--accent-dim);
    box-shadow: 0 0 0 3px var(--accent-faint), inset 0 0 20px rgba(0,255,136,0.02);
}

.form-control::placeholder { color: var(--text-muted); }

/* ── BUTTONS ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: #000;
    width: 100%;
}

.btn-primary:hover {
    background: #00ffaa;
    box-shadow: var(--glow-strong);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

.btn-ghost:hover {
    border-color: var(--accent-dim);
    color: var(--accent);
}

.btn-danger {
    background: transparent;
    border: 1px solid var(--danger);
    color: var(--danger);
}

.btn-danger:hover { background: rgba(255,68,68,0.1); }

.btn-sm { padding: 6px 14px; font-size: 10px; letter-spacing: 2px; }

/* ── ALERTS ── */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 1px;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-error {
    background: rgba(255,68,68,0.08);
    border: 1px solid rgba(255,68,68,0.3);
    color: #ff8888;
}

.alert-success {
    background: rgba(0,255,136,0.06);
    border: 1px solid var(--border-glow);
    color: var(--accent);
}

.alert-info {
    background: rgba(0,212,255,0.06);
    border: 1px solid rgba(0,212,255,0.3);
    color: var(--accent2);
}

/* ── LINKS ── */
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: #00ffaa; text-shadow: var(--glow); }

/* ── CHAT LAYOUT ── */
.app-layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 320px;
    min-width: 320px;
    background: var(--bg-deep);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: relative;
}

.sidebar-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-card);
}

.sidebar-logo {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 900;
    color: var(--accent);
    letter-spacing: 4px;
    text-shadow: var(--glow);
}

.user-uid {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    letter-spacing: 2px;
}

.sidebar-search {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}

.search-input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 9px 16px;
    outline: none;
    transition: var(--transition);
}

.search-input:focus { border-color: var(--accent-dim); }
.search-input::placeholder { color: var(--text-muted); }

.contacts-list {
    flex: 1;
    overflow-y: auto;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
}

.contact-item:hover { background: rgba(0,255,136,0.04); }
.contact-item.active { background: rgba(0,255,136,0.07); }
.contact-item.active::left { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--accent); }

.contact-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    flex-shrink: 0;
    border: 1px solid rgba(255,255,255,0.1);
}

.contact-info { flex: 1; min-width: 0; }
.contact-name { font-size: 14px; font-weight: 600; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.contact-last-msg { font-size: 12px; color: var(--text-muted); font-family: var(--font-mono); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 2px; }

.contact-meta { text-align: right; flex-shrink: 0; }
.contact-time { font-size: 10px; color: var(--text-muted); font-family: var(--font-mono); }
.unread-badge {
    background: var(--accent);
    color: #000;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 700;
    padding: 1px 6px;
    margin-top: 4px;
    font-family: var(--font-mono);
    display: inline-block;
}

.sidebar-footer {
    padding: 14px 16px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-card);
}

.my-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
}

.my-info { flex: 1; min-width: 0; }
.my-name { font-size: 13px; font-weight: 600; }
.my-status { font-size: 10px; color: var(--accent); font-family: var(--font-mono); letter-spacing: 2px; }

.logout-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 6px 10px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 11px;
    font-family: var(--font-mono);
    letter-spacing: 1px;
    transition: var(--transition);
}

.logout-btn:hover { border-color: var(--danger); color: var(--danger); }

/* Main Chat Area */
.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-void);
    position: relative;
    overflow: hidden;
}

.chat-area::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0,255,136,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,255,136,0.025) 1px, transparent 1px);
    background-size: 32px 32px;
    pointer-events: none;
}

.chat-header {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--bg-card);
    position: relative;
    z-index: 1;
}

.chat-header-info { flex: 1; }
.chat-peer-name { font-size: 16px; font-weight: 600; font-family: var(--font-display); letter-spacing: 2px; }
.chat-peer-uid { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); letter-spacing: 2px; }
.chat-peer-status { font-family: var(--font-mono); font-size: 10px; color: var(--accent); letter-spacing: 2px; }

.chat-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    position: relative;
    z-index: 1;
}

.chat-empty-icon {
    font-size: 60px;
    color: var(--text-muted);
    opacity: 0.4;
}

.chat-empty-text {
    font-family: var(--font-display);
    font-size: 14px;
    color: var(--text-muted);
    letter-spacing: 4px;
    text-align: center;
}

/* Messages */
.messages-area {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    position: relative;
    z-index: 1;
}

.msg-date-divider {
    text-align: center;
    margin: 12px 0;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 3px;
    position: relative;
}

.msg-date-divider::before, .msg-date-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 30%;
    height: 1px;
    background: var(--border);
}

.msg-date-divider::before { left: 0; }
.msg-date-divider::after { right: 0; }

.msg-row {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    margin: 1px 0;
    position: relative;
}

.msg-row.outgoing { flex-direction: row-reverse; }

.msg-bubble {
    max-width: 65%;
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.5;
    position: relative;
    word-break: break-word;
}

.msg-row.incoming .msg-bubble {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-bottom-left-radius: 4px;
    color: var(--text-primary);
}

.msg-row.outgoing .msg-bubble {
    background: rgba(0,255,136,0.1);
    border: 1px solid rgba(0,255,136,0.2);
    border-bottom-right-radius: 4px;
    color: var(--text-primary);
}

.msg-meta {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-top: 5px;
    justify-content: flex-end;
}

.msg-time {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
}

.msg-status { font-size: 11px; }
.msg-status.delivered { color: var(--text-muted); }
.msg-status.read { color: var(--accent2); }

.msg-edited {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    font-style: italic;
}

.msg-deleted .msg-bubble {
    background: transparent !important;
    border-style: dashed !important;
    color: var(--text-muted) !important;
    font-style: italic;
    font-size: 13px;
}

.msg-actions {
    display: none;
    gap: 4px;
    align-items: center;
}

.msg-row:hover .msg-actions { display: flex; }

.msg-action-btn {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 3px 7px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 11px;
    font-family: var(--font-mono);
    transition: var(--transition);
}

.msg-action-btn:hover { border-color: var(--accent-dim); color: var(--accent); }
.msg-action-btn.del:hover { border-color: var(--danger); color: var(--danger); }

/* Image messages */
.msg-image {
    max-width: 200px;
    max-height: 200px;
    border-radius: 8px;
    cursor: pointer;
    display: block;
}

/* Input bar */
.chat-input-bar {
    padding: 14px 20px;
    border-top: 1px solid var(--border);
    background: var(--bg-card);
    position: relative;
    z-index: 1;
    display: flex;
    align-items: flex-end;
    gap: 10px;
}

.msg-input-wrap { flex: 1; position: relative; }

.msg-input {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 14px;
    padding: 11px 20px;
    outline: none;
    resize: none;
    max-height: 120px;
    line-height: 1.4;
    transition: var(--transition);
}

.msg-input:focus { border-color: var(--accent-dim); }
.msg-input::placeholder { color: var(--text-muted); }

.send-btn {
    width: 44px;
    height: 44px;
    background: var(--accent);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
    color: #000;
    font-size: 18px;
}

.send-btn:hover {
    background: #00ffaa;
    box-shadow: var(--glow);
    transform: scale(1.05);
}

.send-btn:disabled { background: var(--border); color: var(--text-muted); cursor: default; transform: none; box-shadow: none; }

.img-btn {
    width: 44px;
    height: 44px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 18px;
    transition: var(--transition);
    flex-shrink: 0;
}

.img-btn:hover { border-color: var(--accent-dim); color: var(--accent); }

/* Connect Panel */
.connect-panel {
    padding: 20px 16px;
    border-bottom: 1px solid var(--border);
    background: rgba(0,255,136,0.03);
}

.connect-form {
    display: flex;
    gap: 8px;
    align-items: center;
}

.connect-input {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 9px 14px;
    outline: none;
    letter-spacing: 2px;
    transition: var(--transition);
}

.connect-input:focus { border-color: var(--accent-dim); }
.connect-input::placeholder { color: var(--text-muted); }

.connect-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--accent-dim);
    letter-spacing: 3px;
    display: block;
    margin-bottom: 8px;
    text-transform: uppercase;
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: all;
}

.modal-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 30px;
    width: 100%;
    max-width: 380px;
    position: relative;
}

.modal-box::before {
    content: '';
    position: absolute;
    top: 0; left: 20px; right: 20px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.modal-title {
    font-family: var(--font-display);
    font-size: 14px;
    letter-spacing: 3px;
    color: var(--accent);
    margin-bottom: 20px;
}

.modal-close {
    position: absolute;
    top: 16px; right: 16px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 18px;
    padding: 4px;
}

.modal-close:hover { color: var(--text-primary); }

/* Profile panel */
.profile-section {
    padding: 20px;
    border-bottom: 1px solid var(--border);
    background: rgba(0,255,136,0.02);
}

.uid-display {
    font-family: var(--font-mono);
    font-size: 18px;
    color: var(--accent);
    letter-spacing: 6px;
    text-align: center;
    padding: 12px;
    background: var(--bg-input);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}

.uid-display:hover { background: var(--accent-faint); box-shadow: var(--glow); }
.uid-hint { font-family: var(--font-mono); font-size: 10px; color: var(--text-muted); text-align: center; margin-top: 6px; letter-spacing: 2px; }

/* Tab system */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    background: var(--bg-card);
}

.tab-btn {
    flex: 1;
    padding: 12px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 3px;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    border-bottom: 2px solid transparent;
}

.tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
    background: rgba(0,255,136,0.04);
}

/* Spinner */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    vertical-align: middle;
}

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

/* OTP inputs */
.otp-group {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin: 20px 0;
}

.otp-digit {
    width: 46px;
    height: 54px;
    text-align: center;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--accent);
    font-family: var(--font-display);
    font-size: 22px;
    outline: none;
    transition: var(--transition);
}

.otp-digit:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-faint); }

/* Typing indicator */
.typing-indicator {
    display: none;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
}

.typing-dots { display: flex; gap: 3px; }
.typing-dots span {
    width: 5px; height: 5px;
    background: var(--accent-dim);
    border-radius: 50%;
    animation: typingBounce 1.2s infinite;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingBounce { 0%,80%,100%{transform:translateY(0)} 40%{transform:translateY(-5px)} }

/* Glitch animation for logo */
.glitch {
    position: relative;
    animation: glitch 4s infinite;
}
@keyframes glitch {
    0%,95%,100%{text-shadow: var(--glow-strong);}
    96%{text-shadow: -2px 0 #ff0040, 2px 0 #00d4ff;}
    97%{text-shadow: 2px 0 #ff0040, -2px 0 #00d4ff;}
    98%{text-shadow: var(--glow-strong);}
    99%{text-shadow: -1px 0 #ff0040;}
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar { width: 100%; min-width: auto; }
    .chat-area { display: none; }
    .chat-area.mobile-open { display: flex; position: fixed; inset: 0; z-index: 100; }
    .back-btn { display: flex !important; }
}

.back-btn { display: none; }

/* Notification */
.notif {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 8px;
    padding: 14px 18px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--accent);
    z-index: 9998;
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.3s;
    max-width: 280px;
    letter-spacing: 1px;
    box-shadow: var(--glow);
}
.notif.show { transform: translateY(0); opacity: 1; }