/* ============================================
   BIYN SOLUTIONS — Login Page
   ============================================ */

.biyn-login-page {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-secondary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-font-smoothing: antialiased;
    position: relative;
    overflow: hidden;
}

/* Particle network canvas background */
#particleCanvas {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.biyn-login-container {
    width: 100%;
    max-width: 420px;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

.biyn-login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow);
}

.biyn-login-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.biyn-login-logo img {
    height: 36px;
    width: auto;
    display: inline-block;
}

.biyn-login-welcome {
    text-align: center;
    margin-bottom: 1.75rem;
}

.biyn-login-welcome__wave {
    display: inline-block;
    font-size: 1.75rem;
    animation: wave 1.8s ease-in-out 0.3s 2;
    transform-origin: 70% 70%;
}

@keyframes wave {
    0%, 60%, 100% { transform: rotate(0deg); }
    10%           { transform: rotate(14deg); }
    20%           { transform: rotate(-8deg); }
    30%           { transform: rotate(14deg); }
    40%           { transform: rotate(-4deg); }
    50%           { transform: rotate(10deg); }
}

.biyn-login-title {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.biyn-login-subtitle {
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--text-muted);
    margin-bottom: 0;
}

.biyn-login-form .biyn-form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1.25rem;
}

.biyn-login-form .biyn-form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
}

.biyn-login-form .biyn-form-group input {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.65rem 0.85rem;
    font-size: 0.9rem;
    color: var(--text-primary);
    font-family: var(--font-body);
    transition: var(--transition);
    width: 100%;
}

.biyn-login-form .biyn-form-group input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.biyn-login-form .biyn-form-group input::placeholder {
    color: var(--text-muted);
}

/* Button */
.biyn-login-form .biyn-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--font-body);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    justify-content: center;
    margin-top: 0.5rem;
    background: var(--accent);
    color: var(--bg-primary);
}

.biyn-login-form .biyn-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.biyn-login-error {
    background: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    margin-bottom: 1.25rem;
    font-size: 0.85rem;
    color: #f87171;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.biyn-login-form .biyn-form-group label i {
    opacity: 0.5;
    margin-right: 0.15rem;
}

.biyn-login-footer {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border);
    font-size: 0.78rem;
    color: var(--text-muted);
    letter-spacing: 0.02em;
}

.biyn-login-footer i {
    color: var(--accent);
    margin-right: 0.2rem;
}

.biyn-login-footer a {
    color: var(--accent);
    text-decoration: none;
}

.biyn-login-footer a:hover {
    text-decoration: underline;
}

@media (max-width: 480px) {
    .biyn-login-container {
        padding: 1rem;
    }
    .biyn-login-card {
        padding: 2rem 1.5rem;
    }
}