/* ── Refer & Earn page ── */

.refer-page {
    --refer-money: var(--green);
    --refer-money-soft: rgba(22, 163, 74, 0.12);
    --refer-radius: 1.25rem;
}

.refer-page svg.refer-icon,
.refer-page .refer-journey-icon svg {
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
}

/* Hero */
.refer-hero {
    overflow: hidden;
    padding: 3rem 0 4.5rem;
    position: relative;
}

.refer-hero::before {
    background: radial-gradient(closest-side, var(--brand-soft), transparent);
    content: "";
    height: 38rem;
    pointer-events: none;
    position: absolute;
    right: -10rem;
    top: -8rem;
    width: 38rem;
}

.refer-hero-grid {
    align-items: center;
    display: grid;
    gap: 3.5rem;
    grid-template-columns: 1.05fr 1fr;
    position: relative;
}

.refer-pill {
    align-items: center;
    background: var(--brand-soft);
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--brand);
    display: inline-flex;
    font-size: 0.78rem;
    font-weight: 700;
    gap: 0.5rem;
    letter-spacing: 0.06em;
    padding: 0.4rem 0.9rem;
    text-transform: uppercase;
}

.refer-pill-dot {
    animation: refer-pulse 2s ease-in-out infinite;
    background: var(--refer-money);
    border-radius: 50%;
    height: 0.5rem;
    width: 0.5rem;
}

.refer-hero h1 {
    color: var(--ink);
    font-family: "Roboto Slab", serif;
    font-size: clamp(2.1rem, 4.2vw, 3.3rem);
    font-weight: 700;
    line-height: 1.12;
    margin: 1.2rem 0 1rem;
}

.refer-hero h1 span {
    background: linear-gradient(90deg, var(--brand), var(--refer-money));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: block;
}

.refer-lead {
    color: var(--muted);
    font-size: 1.05rem;
    line-height: 1.75;
    max-width: 34rem;
}

.refer-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.8rem;
}

.refer-hero-stats {
    border-top: 1px solid var(--line);
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(3, auto);
    justify-content: start;
    column-gap: 2.5rem;
    margin-top: 2.2rem;
    padding-top: 1.4rem;
}

.refer-hero-stats dt {
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.refer-hero-stats dd {
    color: var(--ink);
    font-family: "Roboto Slab", serif;
    font-size: 1.6rem;
    font-weight: 700;
}

.refer-hero-visual {
    position: relative;
}

.refer-hero-dots {
    color: var(--brand);
    height: 11rem;
    left: -2.2rem;
    opacity: 0.22;
    position: absolute;
    top: -2.2rem;
    width: 11rem;
}

.refer-hero-frame {
    aspect-ratio: 4 / 3.4;
    border-radius: 2rem 2rem 2rem 0.5rem;
    box-shadow: 0 30px 60px -20px rgba(15, 23, 42, 0.35);
    overflow: hidden;
    position: relative;
}

.refer-hero-frame::after {
    background: linear-gradient(160deg, transparent 45%, rgba(37, 99, 235, 0.45));
    content: "";
    inset: 0;
    position: absolute;
}

.refer-hero-frame img {
    height: 100%;
    object-fit: cover;
    width: 100%;
}

.refer-float {
    animation: refer-float 5s ease-in-out infinite;
    backdrop-filter: blur(10px);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 1rem;
    box-shadow: 0 18px 40px -12px rgba(15, 23, 42, 0.3);
    position: absolute;
}

.refer-float-credit {
    align-items: center;
    display: flex;
    gap: 0.75rem;
    left: -1.5rem;
    padding: 0.75rem 1rem;
    top: 1.75rem;
}

.refer-avatar {
    align-items: center;
    background: linear-gradient(135deg, var(--brand), var(--brand-dark));
    border-radius: 50%;
    color: #fff;
    display: inline-flex;
    flex-shrink: 0;
    font-size: 0.75rem;
    font-weight: 700;
    height: 2.4rem;
    justify-content: center;
    width: 2.4rem;
}

.refer-float-text {
    display: flex;
    flex-direction: column;
}

.refer-float-text b {
    color: var(--ink);
    font-size: 0.85rem;
}

.refer-float-text small,
.refer-float-wallet small {
    color: var(--muted);
    font-size: 0.72rem;
}

.refer-float-credit em {
    background: var(--refer-money-soft);
    border-radius: 0.5rem;
    color: var(--refer-money);
    font-style: normal;
    font-weight: 800;
    padding: 0.25rem 0.55rem;
}

.refer-float-wallet {
    animation-delay: -2.5s;
    bottom: 1.75rem;
    padding: 0.9rem 1.1rem;
    right: -1.5rem;
    width: 11rem;
}

.refer-float-wallet b {
    color: var(--ink);
    display: block;
    font-family: "Roboto Slab", serif;
    font-size: 1.45rem;
}

.refer-spark {
    color: var(--refer-money);
    height: 1.9rem;
    margin-top: 0.3rem;
    width: 100%;
}

.refer-coin {
    animation: refer-spin 7s linear infinite;
    height: 4.2rem;
    position: absolute;
    right: 1.5rem;
    top: -1.8rem;
    width: 4.2rem;
}

.refer-coin svg {
    filter: drop-shadow(0 8px 14px rgba(202, 138, 4, 0.4));
    height: 100%;
    width: 100%;
}

.refer-coin-rim {
    fill: #eab308;
}

.refer-coin-face {
    fill: #facc15;
    stroke: #ca8a04;
    stroke-dasharray: 3 3;
    stroke-width: 1.5;
}

.refer-coin text {
    fill: #a16207;
    font-family: "Roboto Slab", serif;
    font-size: 26px;
    font-weight: 700;
}

/* Reward tickets */
.refer-tickets {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(3, 1fr);
}

.refer-ticket {
    --notch: 0.9rem;
    --stub: 6.5rem;
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: var(--refer-radius);
    display: grid;
    grid-template-columns: var(--stub) 1fr;
    /* Punch notches where the stub meets the body */
    -webkit-mask:
        radial-gradient(circle var(--notch) at var(--stub) 0, transparent 98%, #000) top / 100% 51% no-repeat,
        radial-gradient(circle var(--notch) at var(--stub) 100%, transparent 98%, #000) bottom / 100% 51% no-repeat;
    mask:
        radial-gradient(circle var(--notch) at var(--stub) 0, transparent 98%, #000) top / 100% 51% no-repeat,
        radial-gradient(circle var(--notch) at var(--stub) 100%, transparent 98%, #000) bottom / 100% 51% no-repeat;
    transition: transform 0.25s ease;
}

.refer-ticket:hover {
    transform: translateY(-6px) rotate(-0.6deg);
}

.refer-ticket-stub {
    align-items: center;
    background: var(--brand-soft);
    border-right: 2px dashed var(--line);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 1.5rem 0.5rem;
}

.refer-ticket-stub small {
    color: var(--muted);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.refer-ticket-stub strong {
    color: var(--brand);
    font-family: "Roboto Slab", serif;
    font-size: 2.3rem;
    line-height: 1.1;
}

.refer-ticket-stub .refer-infinity {
    font-family: var(--font-body);
    font-size: 3rem;
    line-height: 1;
}

.refer-ticket-body {
    padding: 1.6rem 1.5rem;
}

.refer-ticket-body .refer-icon {
    color: var(--brand);
    height: 1.7rem;
    margin-bottom: 0.8rem;
    width: 1.7rem;
}

.refer-ticket-body h3 {
    color: var(--ink);
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.refer-ticket-body h3 span,
.refer-help-body h3 span {
    color: var(--brand);
}

.refer-ticket-body p {
    color: var(--muted);
    font-size: 0.87rem;
    line-height: 1.6;
}

.refer-ticket-featured {
    background: linear-gradient(135deg, var(--brand), var(--brand-dark));
    border-color: transparent;
}

.refer-ticket-featured .refer-ticket-stub {
    background: rgba(255, 255, 255, 0.12);
    border-right-color: rgba(255, 255, 255, 0.35);
}

.refer-ticket-featured .refer-ticket-stub small,
.refer-ticket-featured .refer-ticket-body p {
    color: rgba(255, 255, 255, 0.82);
}

.refer-ticket-featured .refer-ticket-stub strong,
.refer-ticket-featured .refer-ticket-body h3,
.refer-ticket-featured .refer-ticket-body h3 span,
.refer-ticket-featured .refer-icon {
    color: #fff;
}

/* Journey */
.refer-journey {
    counter-reset: none;
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(4, 1fr);
    position: relative;
}

.refer-journey::before {
    border-top: 2px dashed var(--brand);
    content: "";
    left: 12.5%;
    opacity: 0.35;
    position: absolute;
    right: 12.5%;
    top: 2.25rem;
}

.refer-journey li {
    position: relative;
    text-align: center;
}

.refer-journey-icon {
    align-items: center;
    background: var(--surface);
    border: 2px solid var(--brand);
    border-radius: 50%;
    box-shadow: 0 0 0 8px var(--brand-soft);
    color: var(--brand);
    display: inline-flex;
    height: 4.5rem;
    justify-content: center;
    margin-bottom: 1.2rem;
    position: relative;
    transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease;
    width: 4.5rem;
}

.refer-journey-icon svg {
    height: 1.8rem;
    width: 1.8rem;
}

.refer-journey li:hover .refer-journey-icon {
    background: var(--brand);
    color: #fff;
    transform: scale(1.06);
}

.refer-journey b {
    color: var(--brand);
    display: block;
    font-size: 0.72rem;
    letter-spacing: 0.14em;
}

.refer-journey h3 {
    color: var(--ink);
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0.25rem 0 0.4rem;
}

.refer-journey p {
    color: var(--muted);
    font-size: 0.87rem;
    line-height: 1.6;
    margin: 0 auto;
    max-width: 15rem;
}

/* Who to refer */
.refer-people {
    display: grid;
    gap: 1.25rem;
    grid-template-columns: repeat(4, 1fr);
}

.refer-person {
    aspect-ratio: 3 / 4;
    border-radius: var(--refer-radius);
    overflow: hidden;
    position: relative;
}

.refer-person:nth-child(even) {
    margin-top: 2.5rem;
}

.refer-person img {
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
    width: 100%;
}

.refer-person:hover img {
    transform: scale(1.07);
}

.refer-person div {
    background: linear-gradient(to top, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.35) 70%, transparent);
    bottom: 0;
    left: 0;
    padding: 3.5rem 1.2rem 1.2rem;
    position: absolute;
    right: 0;
}

.refer-person h3 {
    color: #fff;
    font-size: 1.05rem;
    font-weight: 700;
}

.refer-person p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.82rem;
    line-height: 1.5;
    margin-top: 0.2rem;
}

/* Calculator */
.refer-calc-grid {
    align-items: center;
    display: grid;
    gap: 3rem;
    grid-template-columns: 1fr 1fr;
}

.refer-calc {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 1.5rem;
    box-shadow: 0 24px 50px -24px rgba(15, 23, 42, 0.3);
    display: grid;
    gap: 1.5rem;
    padding: 2rem;
}

.refer-calc-row {
    color: var(--ink);
    display: flex;
    font-size: 0.9rem;
    font-weight: 600;
    justify-content: space-between;
    margin-bottom: 0.6rem;
}

.refer-calc-row output {
    background: var(--brand-soft);
    border-radius: 0.5rem;
    color: var(--brand);
    font-weight: 800;
    min-width: 2.5rem;
    padding: 0.1rem 0.5rem;
    text-align: center;
}

.refer-calc input[type="range"] {
    accent-color: var(--brand);
    cursor: pointer;
    width: 100%;
}

.refer-calc-total {
    background: var(--refer-money-soft);
    border-radius: 1rem;
    padding: 1.2rem 1.4rem;
}

.refer-calc-total small {
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.refer-calc-total strong {
    color: var(--refer-money);
    display: block;
    font-family: "Roboto Slab", serif;
    font-size: 2.6rem;
    line-height: 1.15;
}

.refer-calc-bar {
    background: var(--line);
    border-radius: 999px;
    height: 0.45rem;
    margin-top: 0.7rem;
    overflow: hidden;
}

.refer-calc-bar span {
    background: linear-gradient(90deg, var(--brand), var(--refer-money));
    border-radius: inherit;
    display: block;
    height: 100%;
    transition: width 0.35s ease;
    width: 6%;
}

.refer-calc-note {
    color: var(--muted);
    font-size: 0.75rem;
}

/* FAQ */
.refer-faq-grid {
    align-items: start;
    display: grid;
    gap: 3rem;
    grid-template-columns: 20rem 1fr;
}

.refer-help {
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: var(--refer-radius);
    overflow: hidden;
    position: sticky;
    top: 6.5rem;
}

.refer-help img {
    aspect-ratio: 16 / 11;
    object-fit: cover;
    object-position: 70% 30%;
    width: 100%;
}

.refer-help-body {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding: 1.4rem;
}

.refer-help-body h3 {
    color: var(--ink);
    font-size: 1.1rem;
    font-weight: 700;
}

.refer-help-body p {
    color: var(--muted);
    font-size: 0.87rem;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.refer-help-body a {
    color: var(--brand);
    font-size: 0.9rem;
    font-weight: 700;
}

.refer-help-body a:hover {
    text-decoration: underline;
}

.refer-help-body small {
    color: var(--muted);
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

/* Closing CTA */
.refer-cta {
    align-items: center;
    background:
        linear-gradient(100deg, rgba(29, 78, 216, 0.96) 30%, rgba(37, 99, 235, 0.82) 60%, rgba(14, 165, 233, 0.55)),
        url("../img/refer/cta-celebrate.jpg") center 35% / cover;
    border-radius: 1.75rem;
    color: #fff;
    display: flex;
    gap: 2rem;
    justify-content: space-between;
    overflow: hidden;
    padding: 2.8rem 3rem;
    position: relative;
}

.refer-cta-coins {
    fill: rgba(255, 255, 255, 0.1);
    height: 100%;
    pointer-events: none;
    position: absolute;
    right: 0;
    stroke: rgba(255, 255, 255, 0.25);
    stroke-dasharray: 4 5;
    top: 0;
    width: 60%;
}

.refer-cta > div,
.refer-cta-btn {
    position: relative;
}

.refer-cta h2 {
    font-family: "Roboto Slab", serif;
    font-size: clamp(1.5rem, 2.6vw, 2.1rem);
    font-weight: 700;
    line-height: 1.2;
}

.refer-cta p {
    color: rgba(255, 255, 255, 0.85);
    margin-top: 0.5rem;
}

.refer-cta-btn {
    background: #fff;
    border-radius: 999px;
    color: var(--brand-dark);
    flex-shrink: 0;
    font-weight: 800;
    padding: 0.95rem 1.6rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.refer-cta-btn:hover {
    box-shadow: 0 12px 28px -8px rgba(0, 0, 0, 0.4);
    transform: translateY(-2px);
}

/* Motion */
@keyframes refer-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes refer-spin {
    from { transform: rotateY(0deg); }
    to { transform: rotateY(360deg); }
}

@keyframes refer-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.5); }
    50% { box-shadow: 0 0 0 6px rgba(22, 163, 74, 0); }
}

@media (prefers-reduced-motion: reduce) {
    .refer-float,
    .refer-coin,
    .refer-pill-dot {
        animation: none;
    }
}

/* Dark theme */
html[data-theme="dark"] .refer-ticket-stub {
    border-right-color: rgba(148, 163, 184, 0.3);
}

html[data-theme="dark"] .refer-hero-frame {
    box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.7);
}

html[data-theme="dark"] .refer-calc-section {
    background: transparent;
}

/* Responsive */
@media (max-width: 1023px) {
    .refer-hero-grid,
    .refer-calc-grid {
        grid-template-columns: 1fr;
    }

    .refer-hero-visual {
        margin: 0 auto;
        max-width: 34rem;
        width: 100%;
    }

    .refer-tickets {
        grid-template-columns: 1fr;
        margin: 0 auto;
        max-width: 32rem;
    }

    .refer-journey {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 2.5rem;
    }

    .refer-journey::before {
        display: none;
    }

    .refer-people {
        grid-template-columns: repeat(2, 1fr);
    }

    .refer-faq-grid {
        grid-template-columns: 1fr;
    }

    .refer-help {
        display: grid;
        grid-template-columns: 12rem 1fr;
        position: static;
    }

    .refer-help img {
        aspect-ratio: auto;
        height: 100%;
    }

    .refer-cta {
        align-items: flex-start;
        flex-direction: column;
        padding: 2.2rem;
    }
}

@media (max-width: 639px) {
    .refer-hero {
        padding-top: 1.5rem;
    }

    .refer-hero-stats {
        column-gap: 1.5rem;
    }

    .refer-float-credit {
        left: 0.75rem;
        top: 0.75rem;
    }

    .refer-float-wallet {
        bottom: 0.75rem;
        right: 0.75rem;
        width: 9.5rem;
    }

    .refer-coin {
        height: 3.2rem;
        right: 1rem;
        top: -1.4rem;
        width: 3.2rem;
    }

    .refer-hero-dots {
        left: -1rem;
    }

    .refer-journey {
        grid-template-columns: 1fr;
    }

    .refer-person:nth-child(even) {
        margin-top: 0;
    }

    .refer-help {
        grid-template-columns: 1fr;
    }

    .refer-help img {
        aspect-ratio: 16 / 10;
    }
}

.refer-person .refer-person-img-right {
    object-position: 78% center;
}