/* =============================================================================
   Signup
   ========================================================================== */

#overlay {
    position: fixed;
    inset: 0;
    background: linear-gradient(180deg, rgba(11, 15, 25, 0.6) 0%, rgba(11, 15, 25, 0.4) 100%);
    z-index: 2;
}

#signup_container {
    position: fixed;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: url('/images/dishes/chana-masala.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    padding: var(--space-lg);
}

#signup_box {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    background-color: var(--color-surface);
    box-shadow: var(--shadow-modal);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl) var(--space-xl) var(--space-lg);
    z-index: 3;
    width: 100%;
    max-width: 460px;
    animation: signup-rise var(--duration-slow) var(--ease-out);
}

@keyframes signup-rise {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#logo_img {
    width: 64px;
    height: 64px;
    align-self: center;
    margin-bottom: var(--space-md);
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.12));
}

#signup_box h1 {
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    text-align: center;
    margin: 0;
    letter-spacing: -0.01em;
}

.signup-sub {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
    text-align: center;
    margin: var(--space-xs) 0 var(--space-lg);
}

#sign_up_form {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.signup-field {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.signup-field__label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-muted);
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

#signup_box input {
    width: 100%;
    height: 48px;
    padding: 0 var(--space-md);
    background-color: var(--color-surface);
    border: 1.5px solid var(--color-border);
    border-bottom: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    color: var(--color-text);
    transition:
        border-color var(--duration-fast) var(--ease-out),
        box-shadow var(--duration-fast) var(--ease-out),
        background-color var(--duration-fast) var(--ease-out);
}

#signup_box input:hover {
    border-color: var(--color-text-subtle);
    border-bottom-color: var(--color-text-subtle);
}

#signup_box input:focus,
#signup_box input:focus-visible {
    outline: none;
    background-color: var(--color-surface);
    border-color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-soft);
}

#signup_box input:-webkit-autofill,
#signup_box input:-webkit-autofill:hover,
#signup_box input:-webkit-autofill:focus {
    -webkit-text-fill-color: var(--color-text);
    -webkit-box-shadow: 0 0 0 1000px var(--color-surface-alt) inset;
    caret-color: var(--color-text);
}

#signup_box button {
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    background: var(--gradient-primary);
    color: var(--color-on-primary);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    border: 0;
    border-radius: var(--radius-pill);
    margin-top: var(--space-sm);
    box-shadow: var(--shadow-glow-primary);
    letter-spacing: 0.02em;
    cursor: pointer;
    transition:
        filter var(--duration-fast) var(--ease-out),
        box-shadow var(--duration-fast) var(--ease-out),
        transform var(--duration-fast) var(--ease-out);
}

#signup_box button:hover {
    filter: brightness(1.05);
    box-shadow: var(--shadow-glow-primary-strong);
}

#signup_box button:focus-visible {
    outline: none;
    box-shadow: var(--shadow-glow-primary), 0 0 0 3px var(--color-primary-soft);
}

#signup_box button:active {
    transform: translateY(1px);
    filter: brightness(0.98);
}

#signup_box button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    filter: none;
}

#error_message {
    color: var(--color-danger);
    font-size: var(--font-size-xs);
    text-align: center;
    margin: 0;
    min-height: 1.2em;
}

#error_message:not(:empty) {
    background-color: var(--color-danger-soft);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
    font-weight: var(--font-weight-medium);
}

.signup-footer {
    margin: var(--space-lg) 0 0;
    text-align: center;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.signup-footer a {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
}

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