/* ============================================
   STACK login.css
   login and register page styles
   kept the original glowing border button effect
   but updated everything else to match the theme
   ============================================ */

:root {
    --bg:         #0a0a0a;
    --bg-card:    #111111;
    --border:     #1e1e1e;
    --accent:     #00c8ff;
    --accent-dim: rgba(0, 200, 255, 0.12);
    --text:       #e0e0e0;
    --text-muted: #777;
    --text-dim:   #444;
    --white:      #ffffff;
    --red:        #ff4545;
}

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

html, body {
    height: 100%;
}

body {
    background: var(--bg);
    font-family: 'Montserrat', sans-serif;
    color: var(--text);
    display: flex;
    flex-direction: column;
}

a {
    text-decoration: none;
    color: inherit;
}

/* top bar with back link and logo */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    border-bottom: 1px solid var(--border);
    background: #0d0d0d;
    flex-shrink: 0;
}

.back-link {
    font-size: 13px;
    color: var(--text-muted);
    transition: color 0.2s;
}

.back-link:hover {
    color: var(--accent);
}

.top-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'Orbitron', sans-serif;
    font-size: 16px;
    font-weight: 900;
    color: var(--accent);
    letter-spacing: 3px;
}

/* center the auth box */
.auth-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.auth-box {
    width: 100%;
    max-width: 400px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px 36px;
    position: relative;
}

/* hide register by default jquery toggles it */
.register-form {
    display: none;
}

/* form headings */
.auth-box h2 {
    font-family: 'Rajdhani', sans-serif;
    font-size: 26px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 6px;
}

.auth-sub {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 28px;
}

/* input fields */
.field-group {
    margin-bottom: 16px;
}

.field-group input {
    width: 100%;
    background: #161616;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 11px 14px;
    color: var(--text);
    font-family: 'Montserrat', sans-serif;
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.field-group input::placeholder {
    color: var(--text-dim);
}

.field-group input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 200, 255, 0.1);
}

/* error message */
.form-err {
    font-size: 12px;
    color: var(--red);
    min-height: 16px;
    margin-bottom: 12px;
}

/* ============================================
   GLOWING BORDER BUTTON
   kept from the original login,signup.css
   it was genuinely cool so we kept it
   ============================================ */

.glow-btn {
    position: relative;
    display: block;
    padding: 12px 24px;
    color: var(--accent);
    font-family: 'Montserrat', sans-serif;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    text-align: center;
    overflow: hidden;
    transition: background 0.3s, color 0.3s;
    border-radius: 8px;
    margin-top: 4px;
    margin-bottom: 18px;
    border: 1px solid transparent;
}

.glow-btn:hover {
    background: var(--accent);
    color: #000;
    border-radius: 8px;
    box-shadow: 0 0 6px var(--accent),
                0 0 20px var(--accent),
                0 0 40px rgba(0, 200, 255, 0.4);
}

/* the four animated border lines original from login,signup.css */
.glow-btn span {
    position: absolute;
    display: block;
}

.glow-btn span:nth-child(1) {
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent));
    animation: btn-anim1 1.2s linear infinite;
}

@keyframes btn-anim1 {
    0%      { left: -100%; }
    50%, 100% { left: 100%; }
}

.glow-btn span:nth-child(2) {
    top: -100%;
    right: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, transparent, var(--accent));
    animation: btn-anim2 1.2s linear infinite;
    animation-delay: 0.3s;
}

@keyframes btn-anim2 {
    0%      { top: -100%; }
    50%, 100% { top: 100%; }
}

.glow-btn span:nth-child(3) {
    bottom: 0;
    right: -100%;
    width: 100%;
    height: 2px;
    background: linear-gradient(270deg, transparent, var(--accent));
    animation: btn-anim3 1.2s linear infinite;
    animation-delay: 0.6s;
}

@keyframes btn-anim3 {
    0%      { right: -100%; }
    50%, 100% { right: 100%; }
}

.glow-btn span:nth-child(4) {
    bottom: -100%;
    left: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(360deg, transparent, var(--accent));
    animation: btn-anim4 1.2s linear infinite;
    animation-delay: 0.9s;
}

@keyframes btn-anim4 {
    0%      { bottom: -100%; }
    50%, 100% { bottom: 100%; }
}

/* switch message (Already registered? Sign In) */
.switch-msg {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
}

.switch-link {
    color: var(--accent);
    font-weight: 600;
    transition: opacity 0.2s;
}

.switch-link:hover {
    opacity: 0.75;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 480px) {
    .auth-box {
        padding: 28px 22px;
    }
}