:root {
    --bg: #F8F4F0;
    --card: #FFFFFF;
    --text: #2C2420;
    --text-light: #8A7A72;
    --accent: #C4957A;
    --accent-hover: #B58468;
    --btn: #2C2420;
    --btn-hover: #1A1412;
    --btn-text: #F8F4F0;
    --error: #D64545;
    --success: #2D8A4E;
    --ff-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
    font-family: var(--ff-body);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    -webkit-font-smoothing: antialiased;
}

.auth-container {
    width: 100%;
    max-width: 400px;
}

.auth-card {
    background: var(--card);
    border-radius: 20px;
    padding: 40px 32px;
    box-shadow: 8px 8px 20px rgba(44,36,32,0.08),
                -8px -8px 20px rgba(255,255,255,0.9);
    text-align: center;
}

.auth-logo {
    font-family: var(--ff-body);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--btn);
    text-decoration: none;
    display: inline-block;
    margin-bottom: 24px;
}

h1 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--btn);
    margin-bottom: 8px;
}

.auth-subtitle {
    font-size: 0.88rem;
    color: var(--text-light);
    margin-bottom: 28px;
}

.form-group {
    text-align: left;
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 6px;
    letter-spacing: 0.3px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    font-family: var(--ff-body);
    font-size: 0.88rem;
    color: var(--text);
    background: var(--bg);
    border: 1px solid transparent;
    border-radius: 12px;
    outline: none;
    transition: all 0.25s ease;
    box-shadow: inset 2px 2px 4px rgba(44,36,32,0.04),
                inset -2px -2px 4px rgba(255,255,255,0.8);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: inset 2px 2px 4px rgba(44,36,32,0.04),
                inset -2px -2px 4px rgba(255,255,255,0.8),
                0 0 0 3px rgba(196,149,122,0.15);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.btn-primary {
    width: 100%;
    padding: 14px;
    font-family: var(--ff-body);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--btn-text);
    background: var(--btn);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 8px;
}

.btn-primary:hover {
    background: var(--btn-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(44,36,32,0.2);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-outline-sm {
    padding: 8px 16px;
    font-family: var(--ff-body);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text);
    background: transparent;
    border: 1px solid rgba(44,36,32,0.15);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.25s ease;
}

.btn-outline-sm:hover {
    border-color: var(--text);
    background: rgba(44,36,32,0.03);
}

.error-message {
    margin-top: 12px;
    font-size: 0.8rem;
    color: var(--error);
    min-height: 20px;
}

.forgot-link {
    display: block;
    text-align: right;
    font-size: 0.8rem;
    color: var(--text-light);
    text-decoration: none;
    margin-top: 4px;
    transition: color 0.2s;
}

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

.reset-message {
    margin-top: 12px;
    padding: 12px;
    font-size: 0.85rem;
    color: #2d6a4f;
    background: #d8f3dc;
    border-radius: 8px;
    text-align: center;
}

.auth-switch {
    margin-top: 20px;
    font-size: 0.85rem;
    color: var(--text-light);
}

.auth-switch a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}

.auth-switch a:hover {
    color: var(--accent-hover);
}

.auth-back {
    display: inline-block;
    margin-top: 16px;
    font-size: 0.78rem;
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.25s ease;
}

.auth-back:hover {
    color: var(--text);
}

/* Loading spinner */
.btn-primary.loading {
    position: relative;
    color: transparent;
}

.btn-primary.loading::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    top: 50%;
    left: 50%;
    margin: -9px 0 0 -9px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

@media (max-width: 480px) {
    .auth-card {
        padding: 32px 24px;
    }
    h1 {
        font-size: 1.2rem;
    }
}