.config-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 60px;
}

.config-section.hidden {
    display: none;
}

/* === Card (email + OTP steps) === */
.config-card {
    max-width: 520px;
    width: 100%;
    text-align: center;
}

.config-card-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    background: var(--blue-50);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.config-card-icon img {
    width: 44px;
    height: 44px;
}

.config-card h1,
.config-card h2 {
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 12px;
}

.config-card h1 { font-size: 2rem; }
.config-card h2 { font-size: 1.6rem; }

.config-card-desc {
    color: var(--gray-500);
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 32px;
}

.config-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    text-align: left;
}

.config-field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.config-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.config-field label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-700);
}

.config-field input[type="text"],
.config-field input[type="email"],
.config-field input[type="tel"] {
    padding: 14px 18px;
    border: 1.5px solid var(--gray-200);
    border-radius: 14px;
    font-size: 0.95rem;
    font-family: inherit;
    transition: all 0.25s;
    color: var(--dark);
    background: var(--white);
}

.config-field input:focus {
    outline: none;
    border-color: var(--blue-400);
    box-shadow: 0 0 0 4px rgba(56,189,248,0.1);
}

.config-link-btn {
    background: none;
    border: none;
    color: var(--blue-600);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    padding: 4px;
    font-family: inherit;
}

.config-link-btn:hover {
    text-decoration: underline;
}

.config-back-nav {
    color: var(--gray-500);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

.config-back-nav:hover {
    color: var(--blue-600);
}

/* === OTP inputs === */
.otp-inputs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 8px 0;
}

.otp-inputs input {
    width: 52px;
    height: 60px;
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    border: 2px solid var(--gray-200);
    border-radius: 14px;
    font-family: inherit;
    color: var(--dark);
    transition: all 0.2s;
    background: var(--white);
}

.otp-inputs input:focus {
    outline: none;
    border-color: var(--blue-500);
    box-shadow: 0 0 0 4px rgba(14,165,233,0.15);
}

/* === Chat === */
.config-chat {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.config-chat-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    border-bottom: 1px solid var(--gray-100);
    flex-shrink: 0;
}

.config-chat-avatar {
    width: 40px;
    height: 40px;
    background: var(--blue-50);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.config-chat-avatar img {
    width: 28px;
    height: 28px;
}

.config-chat-header strong {
    display: block;
    font-size: 0.95rem;
}

.config-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    min-height: 0;
}

.config-chat-messages .chat-msg {
    max-width: 85%;
    padding: 12px 18px;
    border-radius: 18px;
    font-size: 0.92rem;
    line-height: 1.55;
}

.config-chat-messages .chat-msg p {
    margin: 0;
}

.config-chat-messages .chat-msg-bot {
    background: var(--gray-100);
    color: var(--dark);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.config-chat-messages .chat-msg-user {
    background: var(--gradient);
    color: var(--white);
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.config-chat-input {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 18px;
    border-top: 1px solid var(--gray-100);
    flex-shrink: 0;
}

.config-chat-input input {
    flex: 1;
    border: 1.5px solid var(--gray-200);
    border-radius: 14px;
    padding: 12px 18px;
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
    color: var(--dark);
}

.config-chat-input input:focus {
    border-color: var(--blue-400);
}

.config-chat-input button {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: var(--gradient);
    color: var(--white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s;
}

.config-chat-input button:hover {
    box-shadow: 0 4px 16px rgba(14,165,233,0.35);
}

/* Typing indicator */
.chat-typing {
    display: flex;
    gap: 5px;
    padding: 14px 18px;
    align-self: flex-start;
}

.chat-typing span {
    width: 7px;
    height: 7px;
    background: var(--gray-400);
    border-radius: 50%;
    animation: typing 1.4s ease-in-out infinite;
}

.chat-typing span:nth-child(2) { animation-delay: 0.2s; }
.chat-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-6px); opacity: 1; }
}

/* === Chat Tips === */
.chat-tips {
    align-self: flex-start;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 4px 0;
    animation: fadeUp 0.4s ease;
}

.chat-tips-title {
    width: 100%;
    font-size: 0.82rem;
    color: var(--gray-500);
    font-weight: 600;
    margin: 0 0 4px;
}

.chat-tip-btn {
    padding: 8px 16px;
    background: var(--white);
    border: 1.5px solid var(--blue-200);
    border-radius: 100px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--blue-600);
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s;
}

.chat-tip-btn:hover {
    background: var(--blue-50);
    border-color: var(--blue-400);
}

.chat-tip-btn:active {
    transform: scale(0.96);
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* === Config Fullscreen Layout === */
.config-fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    background: var(--white);
    z-index: 1001;
}

/* === Config Topbar === */
.config-topbar {
    flex-shrink: 0;
    border-bottom: 1px solid var(--gray-200);
    background: var(--white);
}

.config-topbar-nav {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    gap: 12px;
}

.config-topbar-title {
    flex: 1;
    text-align: center;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.config-topbar-back {
    text-decoration: none;
    color: var(--gray-400);
    font-size: 1.2rem;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.2s;
}

.config-topbar-back:hover {
    background: var(--gray-100);
    color: var(--dark);
}

/* === Config Bar (horizontal) === */
.config-bar {
    flex-shrink: 0;
    background: var(--gray-50);
}

.config-bar-progress {
    height: 3px;
    background: var(--gray-200);
}

.config-bar-fill {
    height: 100%;
    background: var(--gradient);
    width: 0%;
    transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.config-bar-tags {
    padding: 10px 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
    min-height: 40px;
}

.config-bar-empty {
    font-size: 0.78rem;
    color: var(--gray-400);
}

.config-bar-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    background: var(--white);
    border: 1px solid var(--blue-200);
    color: var(--blue-700);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 100px;
    animation: tagIn 0.3s ease;
    white-space: nowrap;
}

.config-bar-tag .tag-label {
    color: var(--gray-400);
    font-weight: 500;
    margin-right: 2px;
}

@keyframes tagIn {
    from { opacity: 0; transform: scale(0.85); }
    to { opacity: 1; transform: scale(1); }
}

/* === Quote panel === */
.config-chat-quote {
    padding: 20px 24px;
    border-top: 1px solid var(--gray-100);
    flex-shrink: 0;
    max-height: 60vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.config-chat-quote.hidden {
    display: none;
}

.quote-result {
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, var(--dark), var(--dark-medium));
    border-radius: var(--radius);
    color: var(--white);
}

.quote-label {
    display: block;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gray-400);
    margin-bottom: 6px;
}

.quote-amount {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
}

.quote-extra-fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* === Responsive === */
@media (max-width: 768px) {
    .config-section {
        padding: 80px 16px 40px;
    }

    .config-card h1 {
        font-size: 1.6rem;
    }

    .config-field-row {
        grid-template-columns: 1fr;
    }

    .otp-inputs input {
        width: 44px;
        height: 52px;
        font-size: 1.3rem;
    }

    .config-chat-input input {
        font-size: 16px;
    }

    .config-bar-tags {
        padding: 8px 12px;
    }

    .config-chat-header {
        padding: 12px 16px;
        padding-top: max(12px, env(safe-area-inset-top));
    }

    .config-chat-messages {
        padding: 16px;
        gap: 10px;
    }

    .config-chat-messages .chat-msg {
        max-width: 92%;
        font-size: 0.88rem;
        padding: 10px 14px;
    }

    .config-chat-input {
        padding: 10px 12px;
        padding-bottom: max(10px, env(safe-area-inset-bottom));
    }

    .config-chat-input input {
        padding: 10px 14px;
        font-size: 16px; /* prevents iOS zoom */
    }

    .config-chat-quote {
        padding: 16px;
        max-height: 50vh;
    }

    .quote-result {
        padding: 16px;
    }

    .quote-amount {
        font-size: 1.5rem;
    }

    .quote-extra-fields {
        grid-template-columns: 1fr;
    }

    .config-back-nav {
        display: none;
    }
}