/* Overlay Modals (Auth & Onboarding) */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(252, 249, 242, 0.95);
    /* Warm translucent backdrop */
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    padding: 3rem;
    width: 95%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    transform: translateY(30px);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    border-radius: 2px;
    overflow-y: auto;
    max-height: 90vh;
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--accent-color);
}

.modal-title {
    font-family: var(--masthead-font);
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
    line-height: 1.1;
    color: var(--text-color);
    letter-spacing: -1px;
    border-bottom: 2px solid var(--text-color);
    padding-bottom: 0.8rem;
}

.modal-section-title {
    font-family: var(--masthead-font);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
    color: var(--text-color);
}

.modal-subtitle {
    font-size: 1rem;
    font-family: var(--body-font);
    color: var(--accent-color);
    margin-bottom: 2rem;
    font-style: italic;
    opacity: 0.85;
}

.modal-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.modal-label {
    font-weight: 700;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.modal-submit-btn {
    background: var(--text-color);
    color: var(--bg-color);
    border: 1px solid var(--text-color);
    padding: 1.2rem;
    font-family: var(--body-font);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.modal-submit-btn:hover {
    background: transparent;
    color: var(--text-color);
}

/* Onboarding Specific Layouts */
.topic-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 0.5rem;
    margin-bottom: 1.5rem;
}

.topic-tag-container {
    position: relative;
    cursor: pointer;
    font-size: 0.9rem;
}

.topic-tag-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.topic-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--accent-color);
    font-weight: 500;
    border-radius: 20px;
    transition: all 0.2s ease;
    user-select: none;
}

.topic-tag-container:hover .topic-tag {
    border-color: var(--text-color);
    color: var(--text-color);
}

.topic-tag-container input:checked ~ .topic-tag {
    background: var(--text-color);
    border-color: var(--text-color);
    color: var(--bg-color);
}

.modal-form input.vintage-input {
    border-bottom: 1px solid var(--text-color);
    font-size: 1.5rem;
    padding: 0.8rem 0;
    background: transparent;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.modal-form input.vintage-input:focus {
    border-bottom: 2px solid var(--text-color);
}

.modal-toggle-text {
    text-align: center;
    margin-top: 2rem;
    font-size: 0.9rem;
    color: var(--accent-color);
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.modal-toggle-text a {
    color: var(--text-color);
    font-weight: 700;
    text-decoration: underline;
    margin-left: 0.5rem;
    text-underline-offset: 3px;
}

.error-msg {
    color: #d94b4b;
    font-size: 0.9rem;
    background: #fff5f5;
    padding: 0.8rem;
    border-left: 3px solid #d94b4b;
    margin-top: 0.5rem;
    display: none;
    font-weight: 500;
}

.onboard-step {
    display: none;
    flex-direction: column;
    animation: fadeInStep 0.4s ease forwards;
}

.onboard-step.active {
    display: flex;
}

@keyframes fadeInStep {
    from { opacity: 0; transform: translateX(10px); }
    to { opacity: 1; transform: translateX(0); }
}

.modal-nav-btns {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.modal-nav-btn {
    background: transparent;
    border: 1px solid var(--text-color);
    color: var(--text-color);
    padding: 0.6rem 1.2rem;
    font-family: var(--body-font);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.2s ease;
}

.modal-nav-btn:hover {
    background: var(--bg-color);
    box-shadow: inset 0 0 0 1px var(--text-color);
}

.next-step {
    background: var(--text-color);
    color: var(--bg-color);
}

.next-step:hover {
    background: rgba(0,0,0,0.8);
    color: var(--bg-color);
}

.prev-step {
    border: none;
    color: var(--accent-color);
}

.prev-step:hover {
    color: var(--text-color);
    box-shadow: none;
    background: transparent;
}

.onboard-progress {
    display: flex;
    justify-content: center;
    gap: 0.8rem;
    margin-top: 3rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.progress-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border-color);
    transition: all 0.3s ease;
}

.progress-dot.active {
    background: var(--text-color);
    transform: scale(1.3);
}