/* Telegram-style Authentication Pages */

:root {
    --bg-primary: #0e1621;
    --bg-secondary: #17212b;
    --bg-input: #242f3d;
    --accent-blue: #2b5278;
    --accent-blue-hover: #3a6a9e;
    --text-primary: #ffffff;
    --text-secondary: #708499;
    --text-muted: #6c7883;
    --border-color: #0e1621;
    --error-color: #e53935;
    --success-color: #4fae4e;
}

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

body, html {
    height: 100vh;
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.auth-container {
    width: 100%;
    max-width: 360px;
    padding: 40px 32px;
    background-color: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.auth-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-blue) 0%, #4a8bc2 100%);
    border-radius: 50%;
}

.auth-logo svg {
    width: 48px;
    height: 48px;
    fill: white;
}

.auth-container h1 {
    text-align: center;
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.auth-container > p {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

form {
    width: 100%;
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.input-group input {
    width: 100%;
    padding: 14px 16px;
    border: none;
    border-radius: 8px;
    background-color: var(--bg-input);
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: background-color 0.15s ease, box-shadow 0.15s ease;
}

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

.input-group input:focus {
    background-color: #2a3a4d;
    box-shadow: 0 0 0 2px var(--accent-blue);
}

.btn-primary {
    width: 100%;
    padding: 14px 24px;
    border: none;
    border-radius: 8px;
    background-color: var(--accent-blue);
    color: white;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.15s ease, transform 0.1s ease;
    margin-top: 8px;
}

.btn-primary:hover {
    background-color: var(--accent-blue-hover);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.switch-auth {
    text-align: center;
    margin-top: 24px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.switch-auth a {
    color: #6ab2f2;
    text-decoration: none;
    font-weight: 500;
}

.switch-auth a:hover {
    text-decoration: underline;
}

#message {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 0.9rem;
    text-align: center;
    display: none;
}

#message.error {
    display: block;
    background-color: rgba(229, 57, 53, 0.15);
    color: var(--error-color);
    border: 1px solid rgba(229, 57, 53, 0.3);
}

#message.success {
    display: block;
    background-color: rgba(79, 174, 78, 0.15);
    color: var(--success-color);
    border: 1px solid rgba(79, 174, 78, 0.3);
}

/* Password strength indicator */
.password-strength {
    margin-top: 8px;
    height: 3px;
    background-color: var(--bg-input);
    border-radius: 2px;
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    width: 0%;
    transition: width 0.2s ease, background-color 0.2s ease;
}

.password-strength-bar.weak {
    width: 33%;
    background-color: var(--error-color);
}

.password-strength-bar.medium {
    width: 66%;
    background-color: #f5a623;
}

.password-strength-bar.strong {
    width: 100%;
    background-color: var(--success-color);
}

/* Responsive */
@media (max-width: 480px) {
    .auth-container {
        max-width: 100%;
        border-radius: 0;
        padding: 32px 20px;
        min-height: 100vh;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
}