:root {
    --navy: #0F1B3C;
    --navy-mid: #1A2E5A;
    --teal: #00C9A7;
    --teal-dark: #00A88A;
    --teal-light: #E0FAF4;
    --slate: #6B7A99;
    --surface: #EEF1F8;
    --warm-white: #F8F6F2;
    --text: #1C2B4A;
    --muted: #8A95AA;
    --border: #D6DCEB;
    --danger: #E05A5A;
    --success: #1F9D55;
    --font-display: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Inter', sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background: var(--warm-white);
    color: var(--text);
    min-height: 100vh;
    margin: 0;
}

/* ─── SCREENS ─── */
.screen {
    display: none;
    min-height: 100vh;
}

.screen.active {
    display: flex;
}

/* ══════════════════════════════════════
SCREEN 1 — LOGIN
══════════════════════════════════════ */
#screen-login {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--surface);
}

.login-card {
    background: #fff;
    border-radius: 24px;
    width: 100%;
    max-width: 440px;
    padding: 2.75rem 2.5rem 2.25rem;
    box-shadow: 0 8px 40px rgba(15, 27, 60, .09);
    text-align: center;
}

.login-logo {
    width: 84px;
    height: 84px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.login-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.login-card h1 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--navy);
    margin-bottom: .3rem;
    line-height: 1.2;
}

.login-card h1 span {
    color: var(--teal-dark);
}

.login-card .welcome {
    font-family: var(--font-display);
    font-size: .9rem;
    color: var(--slate);
    margin-bottom: 2rem;
}

.login-divider {
    height: 1px;
    background: var(--border);
    margin: 0 0 1.75rem;
}

.login-card .subtitle {
    font-size: .82rem;
    color: var(--muted);
    margin-bottom: 1rem;
    text-align: left;
}

/* Floating label override */
.form-floating>.form-control,
.form-floating>.form-select {
    border: 1.5px solid var(--border);
    border-radius: 12px;
    background: #fff;
    font-family: var(--font-body);
    font-size: .93rem;
    color: var(--text);
    padding: 1rem 1rem;
    height: auto;
    min-height: 3.25rem;
    transition: border-color .2s, box-shadow .2s;
}

.form-floating>.form-control:focus,
.form-floating>.form-select:focus {
    border-color: var(--teal);
    box-shadow: 0 0 0 3px rgba(0, 201, 167, .15);
    outline: none;
}

.form-floating>label {
    font-family: var(--font-body);
    color: var(--muted);
    font-size: .88rem;
    padding: .9rem 1rem;
}

.form-floating>.form-control:focus~label,
.form-floating>.form-control:not(:placeholder-shown)~label,
.form-floating>.form-select:focus~label,
.form-floating>.form-select:not([value=""]):valid~label {
    color: var(--teal-dark);
    font-size: .75rem;
    font-weight: 600;
}

.form-floating {
    margin-bottom: 1rem;
}

/* Primary button */
.btn-survey-primary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .6rem;
    width: 100%;
    background: var(--navy);
    color: #fff;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: .95rem;
    border: none;
    border-radius: 12px;
    padding: .9rem 1.5rem;
    cursor: pointer;
    transition: background .2s, transform .1s;
}

.btn-survey-primary:hover {
    background: var(--navy-mid);
}

.btn-survey-primary:active {
    transform: scale(.98);
}

.btn-survey-primary .btn-icon {
    width: 28px;
    height: 28px;
    background: var(--teal);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .85rem;
}

.login-note {
    text-align: center;
    font-size: .78rem;
    color: var(--muted);
    margin-top: 1.25rem;
}

.login-note i {
    color: var(--teal);
}

.invalid-msg {
    display: none;
    color: var(--danger);
    font-size: .8rem;
    margin-top: .4rem;
}

.was-validated .invalid-msg {
    display: block;
}

/* ══════════════════════════════════════
SCREEN 2 — DATA PRIVACY
══════════════════════════════════════ */
#screen-privacy {
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 2.5rem 1rem;
    background: var(--surface);
}

.privacy-card {
    background: #fff;
    border-radius: 24px;
    max-width: 760px;
    width: 100%;
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(15, 27, 60, .1);
}

.privacy-header {
    background: var(--navy);
    padding: 2.5rem 2.5rem 2rem;
}

.privacy-header .tag {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    background: rgba(0, 201, 167, .15);
    color: var(--teal);
    border: 1px solid rgba(0, 201, 167, .25);
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    padding: .3rem .75rem;
    border-radius: 100px;
    margin-bottom: 1rem;
}

.privacy-header h2 {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: .4rem;
}

.privacy-header p {
    color: rgba(255, 255, 255, .5);
    font-size: .85rem;
}

.privacy-body {
    padding: 2rem 2.5rem;
}

.privacy-text {
    font-size: .86rem;
    color: var(--slate);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.privacy-text h6 {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--text);
    font-size: .85rem;
    margin-top: 1.25rem;
    margin-bottom: .3rem;
}

.privacy-text h6:first-child {
    margin-top: 0;
}

.privacy-agree-row {
    display: flex;
    align-items: flex-start;
    gap: .85rem;
    background: var(--teal-light);
    border: 1.5px solid rgba(0, 201, 167, .3);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    cursor: pointer;
    transition: background .2s;
}

.privacy-agree-row:hover {
    background: #c8f4ec;
}

.privacy-agree-row input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--teal-dark);
    flex-shrink: 0;
    margin-top: 1px;
    cursor: pointer;
}

.privacy-agree-row label {
    font-size: .88rem;
    color: var(--text);
    font-weight: 500;
    cursor: pointer;
    line-height: 1.5;
}

.privacy-footer {
    display: flex;
    gap: .75rem;
    border-top: 1px solid var(--border);
    padding: 1.5rem 2.5rem;
}

.btn-ghost {
    flex: 1;
    background: transparent;
    border: 1.5px solid var(--border);
    border-radius: 12px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: .88rem;
    color: var(--slate);
    padding: .75rem;
    cursor: pointer;
    transition: border-color .2s, color .2s;
}

.btn-ghost:hover {
    border-color: var(--slate);
    color: var(--text);
}

.btn-teal {
    flex: 2;
    background: var(--teal);
    border: none;
    border-radius: 12px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: .92rem;
    color: var(--navy);
    padding: .75rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    transition: background .2s, opacity .2s;
}

.btn-teal:hover {
    background: var(--teal-dark);
    color: #fff;
}

.btn-teal:disabled {
    opacity: .45;
    cursor: not-allowed;
}

/* ══════════════════════════════════════
SCREEN 3 — SURVEY (MULTI-STEP)
══════════════════════════════════════ */
#screen-survey {
    flex-direction: column;
    align-items: stretch;
}

/* Slim navy header */
.survey-header {
    background: var(--navy);
    padding: 0 2.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    position: sticky;
    top: 0;
    z-index: 20;
    flex-shrink: 0;
}

.survey-header-brand {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: 1rem 0;
    flex-shrink: 0;
}

.survey-header-brand img {
    width: 36px;
    height: 36px;
    object-fit: contain;
}

.survey-header-brand span {
    font-family: var(--font-display);
    font-size: .82rem;
    font-weight: 700;
    color: rgba(255, 255, 255, .7);
    letter-spacing: .02em;
}

.survey-header-steps {
    display: flex;
    align-items: center;
    gap: 0;
    flex: 1;
    justify-content: center;
}

.header-step {
    display: flex;
    align-items: center;
    gap: 0;
}

.header-step-btn {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: 1.1rem .75rem;
    border: none;
    background: transparent;
    cursor: default;
    position: relative;
}

.header-step-num {
    width: 24px;
    height: 24px;
    border-radius: 7px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: .72rem;
    font-weight: 800;
    flex-shrink: 0;
    background: rgba(255, 255, 255, .08);
    color: rgba(255, 255, 255, .3);
    transition: all .3s;
}

.header-step-label {
    font-family: var(--font-display);
    font-size: .75rem;
    font-weight: 600;
    color: rgba(255, 255, 255, .3);
    white-space: nowrap;
    transition: color .3s;
}

.header-step.active .header-step-num {
    background: var(--teal);
    color: var(--navy);
}

.header-step.active .header-step-label {
    color: #fff;
}

.header-step.done .header-step-num {
    background: rgba(0, 201, 167, .2);
    color: var(--teal);
}

.header-step.done .header-step-label {
    color: rgba(255, 255, 255, .5);
}

.header-step-connector {
    width: 28px;
    height: 1px;
    background: rgba(255, 255, 255, .1);
    flex-shrink: 0;
}

.header-step.done+.header-step>.header-step-btn::before {
    background: var(--teal);
}

.survey-header-sn {
    font-family: var(--font-display);
    font-size: .75rem;
    font-weight: 600;
    color: rgba(255, 255, 255, .35);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: .4rem;
}

.survey-header-sn i {
    color: var(--teal);
}

/* Progress bar under header */
.survey-progress-bar {
    height: 3px;
    background: var(--surface);
    flex-shrink: 0;
}

.survey-progress-fill {
    height: 3px;
    background: linear-gradient(90deg, var(--teal), #00B4D8);
    transition: width .4s cubic-bezier(.4, 0, .2, 1);
}

/* Main content area */
.survey-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

/* Survey content */
.survey-content {
    flex: 1;
    padding: 2.5rem 2rem 1.5rem;
    max-width: 860px;
    width: 100%;
    margin: 0 auto;
}

/* Step header */
.step-header {
    margin-bottom: 2.5rem;
}

.step-number {
    font-family: var(--font-display);
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--teal-dark);
    margin-bottom: .75rem;
    display: flex;
    align-items: center;
    gap: .5rem;
}

.step-number::before {
    content: '';
    width: 28px;
    height: 2px;
    background: var(--teal);
    border-radius: 2px;
}

.step-header h2 {
    font-family: var(--font-display);
    font-size: 1.9rem;
    font-weight: 800;
    color: var(--navy);
    margin-bottom: .4rem;
}

.step-header p {
    font-size: .9rem;
    color: var(--slate);
}

/* Form sections */
.form-section {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1.75rem 2rem;
    margin-bottom: 1.25rem;
}

.form-section-title {
    font-family: var(--font-display);
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--slate);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: .6rem;
}

.form-section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

/* Custom form controls */
.survey-label {
    font-family: var(--font-display);
    font-size: .83rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: .5rem;
    display: block;
}

.survey-label .required {
    color: var(--teal);
    margin-left: .2rem;
}

.survey-control {
    display: block;
    width: 100%;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: 10px;
    padding: .7rem 1rem;
    font-family: var(--font-body);
    font-size: .88rem;
    color: var(--text);
    transition: border-color .2s, box-shadow .2s, background .2s;
    appearance: none;
    -webkit-appearance: none;
}

.survey-control:focus {
    border-color: var(--teal);
    box-shadow: 0 0 0 3px rgba(0, 201, 167, .12);
    background: #fff;
    outline: none;
}

select.survey-control {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236B7A99' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-row {
    margin-bottom: 1.1rem;
}

/* Radio/checkbox pill group */
.pill-group {
    display: flex;
    flex-direction: column;
    gap: .5rem;
}

.pill-group input[type="radio"],
.pill-group input[type="checkbox"] {
    display: none;
}

.pill-option {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: 100px;
    padding: .45rem 1rem;
    font-family: var(--font-display);
    font-size: .82rem;
    font-weight: 600;
    color: var(--slate);
    cursor: pointer;
    transition: all .2s;
    user-select: none;
}

.pill-group input:checked+.pill-option {
    background: var(--teal-light);
    border-color: var(--teal);
    color: var(--teal-dark);
}

.pill-option .pi {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 1.5px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .2s;
    flex-shrink: 0;
}

.pill-group input:checked+.pill-option .pi {
    background: var(--teal);
    border-color: var(--teal);
}

.pill-group input:checked+.pill-option .pi::after {
    content: '';
    width: 6px;
    height: 6px;
    background: #fff;
    border-radius: 50%;
    display: block;
}

/* Yes/No toggle */
.yn-group {
    display: inline-flex;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
}

.yn-group input[type="radio"] {
    display: none;
}

.yn-option {
    padding: .5rem 1.4rem;
    font-family: var(--font-display);
    font-size: .82rem;
    font-weight: 700;
    color: var(--muted);
    cursor: pointer;
    transition: all .2s;
    background: #fff;
}

.yn-group input:checked+.yn-option {
    background: var(--navy);
    color: #fff;
}

.yn-group .yn-yes:checked+.yn-option {
    background: var(--teal);
    color: var(--navy);
}

/* Hint text */
.form-hint {
    font-size: .75rem;
    color: var(--muted);
    margin-top: .35rem;
}

/* Navigation buttons */
.step-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 2rem 2.5rem;
    max-width: 860px;
    width: 100%;
    margin: 0 auto;
}

.btn-prev {
    display: flex;
    align-items: center;
    gap: .5rem;
    background: transparent;
    border: 1.5px solid var(--border);
    border-radius: 12px;
    padding: .75rem 1.5rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: .88rem;
    color: var(--slate);
    cursor: pointer;
    transition: all .2s;
}

.btn-prev:hover {
    border-color: var(--slate);
    color: var(--text);
}

.btn-next {
    display: flex;
    align-items: center;
    gap: .5rem;
    background: var(--navy);
    border: none;
    border-radius: 12px;
    padding: .75rem 1.75rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: .88rem;
    color: #fff;
    cursor: pointer;
    transition: all .2s;
}

.btn-next:hover {
    background: var(--navy-mid);
}

.btn-next .arrow-box {
    width: 26px;
    height: 26px;
    background: var(--teal);
    border-radius: 7px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .8rem;
}

.btn-submit {
    background: var(--teal);
    color: var(--navy);
}

.btn-submit:hover {
    background: var(--teal-dark);
    color: #fff;
}

.btn-submit .arrow-box {
    background: var(--navy);
    color: #fff;
}

/* Step panes */
.step-pane {
    display: none;
}

.step-pane.active {
    display: block;
    animation: fadeSlideIn .35s cubic-bezier(.4, 0, .2, 1);
}

@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateX(18px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.step-pane.slide-back {
    animation: fadeSlideBack .35s cubic-bezier(.4, 0, .2, 1);
}

@keyframes fadeSlideBack {
    from {
        opacity: 0;
        transform: translateX(-18px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ══════════════════════════════════════
SCREEN 4 — SUCCESS
══════════════════════════════════════ */
#screen-success {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--navy);
    text-align: center;
    padding: 2rem;
}

.success-icon {
    width: 96px;
    height: 96px;
    background: rgba(0, 201, 167, .15);
    border: 2px solid rgba(0, 201, 167, .3);
    border-radius: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--teal);
    margin: 0 auto 2rem;
    animation: popIn .5s cubic-bezier(.175, .885, .32, 1.275);
}

@keyframes popIn {
    from {
        transform: scale(.5);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

#screen-success h2 {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: .5rem;
}

#screen-success p {
    color: rgba(255, 255, 255, .5);
    font-size: .95rem;
    max-width: 380px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.success-ref {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    background: rgba(0, 201, 167, .1);
    border: 1px solid rgba(0, 201, 167, .2);
    border-radius: 100px;
    padding: .5rem 1.25rem;
    font-family: var(--font-display);
    font-size: .82rem;
    font-weight: 700;
    color: var(--teal);
    letter-spacing: .05em;
}

/* ── MOBILE ── */
@media (max-width: 991px) {
    .survey-header-steps {
        display: none;
    }

    .survey-header {
        padding: 0 1.25rem;
    }

    .survey-content {
        padding: 1.5rem 1.25rem;
    }

    .step-nav {
        padding: 1rem 1.25rem 2rem;
    }

    .step-header h2 {
        font-size: 1.4rem;
    }

    .form-section {
        padding: 1.25rem;
    }

    .privacy-body {
        padding: 1.5rem;
    }

    .privacy-footer {
        padding: 1.25rem 1.5rem;
        flex-direction: column;
    }

    .btn-ghost {
        flex: none;
    }

    .login-card {
        margin: 1rem;
    }
}

/* ── Validation ── */
.survey-control.is-invalid {
    border-color: var(--danger);
    background-color: #fff5f5;
}

.survey-control.is-invalid:focus {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(224, 90, 90, .12);
}

.field-error {
    display: none;
    font-size: .75rem;
    color: var(--danger);
    margin-top: .35rem;
    font-weight: 500;
}

.field-error.visible {
    display: flex;
    align-items: center;
    gap: .3rem;
}

.pill-group.is-invalid .pill-option,
.yn-group.is-invalid .yn-option {
    border-color: var(--danger);
}

.pill-group.is-invalid,
.yn-group.is-invalid {
    outline: 2px solid rgba(224, 90, 90, .25);
    border-radius: 12px;
}

/* Validation toast */
.val-toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(calc(100% + 3rem));
    background: #fff;
    border: 1.5px solid var(--danger);
    border-radius: 14px;
    padding: .85rem 1.4rem;
    display: flex;
    align-items: center;
    gap: .75rem;
    box-shadow: 0 8px 32px rgba(224, 90, 90, .18);
    z-index: 9999;
    font-family: var(--font-display);
    font-size: .85rem;
    font-weight: 600;
    color: var(--danger);
    transition: transform .35s cubic-bezier(.34, 1.56, .64, 1);
    white-space: nowrap;
}

.val-toast.show {
    transform: translateX(-50%) translateY(0);
}

.val-toast i {
    font-size: 1.1rem;
}

.val-toast.success {
    border-color: var(--success);
    color: var(--success);
    box-shadow: 0 8px 32px rgba(31, 157, 85, .18);
}

/* Utility */
.g-3-custom {
    gap: 1rem;
}