:root {
    --ink: #0a0d12;
    --panel: #12151d;
    --panel2: #171b25;
    --line: rgba(255,255,255,.09);
    --amber: #f5a623;
    --flame: #e4572e;
    --cyan: #4dd8f2;
    --text: #f5f3ee;
    --muted: #98a0ad;
    --grad: linear-gradient(95deg,var(--amber),var(--flame));
    --radius: 14px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--ink);
    color: var(--text);
    font-family: 'Inter',sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Fraunces',serif;
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -.01em;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}



.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--amber);
    margin-bottom: 14px;
}

    .eyebrow::before {
        content: "";
        width: 18px;
        height: 1px;
        background: var(--grad);
    }

.icon {
    width: 22px;
    height: 22px;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex-shrink: 0;
}

/* ---------- HERO ---------- */
.hero {
    position: relative;
    padding: 88px 0 90px;
    border-bottom: 1px solid var(--line);
    overflow: hidden;
}

    .hero::before {
        content: "";
        position: absolute;
        top: -220px;
        right: -160px;
        width: 560px;
        height: 560px;
        border-radius: 50%;
        background: radial-gradient(circle at 40% 40%, rgba(245,166,35,.16), transparent 68%);
        pointer-events: none;
    }

.hero-grid {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 56px;
    align-items: center;
}

.hero h1 {
    font-size: clamp(2.2rem, 3.6vw, 3.15rem);
    margin-bottom: 20px;
}

    .hero h1 em {
        font-style: normal;
        background: var(--grad);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }

.hero p.lead {
    color: var(--muted);
    font-size: 1.06rem;
    max-width: 46ch;
    margin-bottom: 30px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 36px;
}

.btn-primary, .btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 13px 24px;
    border-radius: 999px;
    font-weight: 700;
    font-size: .92rem;
}

.btn-primary {
    background: var(--grad);
    color: #140a02;
    box-shadow: 0 10px 28px -10px rgba(228,87,46,.6);
}

.btn-ghost {
    border: 1px solid var(--line);
    color: var(--text);
}

    .btn-primary .icon, .btn-ghost .icon {
        width: 17px;
        height: 17px;
    }

.btn-primary .icon {
    stroke: #140a02;
}

.hero-stats {
    display: flex;
    gap: 30px;
}

    .hero-stats div {
        border-left: 2px solid var(--amber);
        padding-left: 12px;
    }

    .hero-stats strong {
        display: block;
        font-family: 'Fraunces',serif;
        font-size: 1.5rem;
    }

    .hero-stats span {
        color: var(--muted);
        font-size: .8rem;
    }

/* Signature quadrant diagram */
.quad-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.quad-diagram {
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
    position: relative;
}

.quad-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: conic-gradient(from -45deg, var(--panel2) 0deg 90deg, var(--panel2) 90deg 180deg, var(--panel2) 180deg 270deg, transparent 270deg 360deg);
    border: 1px solid var(--line);
}

.quad-highlight {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: conic-gradient(from -45deg, transparent 0deg 270deg, rgba(245,166,35,.9) 270deg 300deg, rgba(228,87,46,.95) 300deg 330deg, rgba(245,166,35,.55) 330deg 360deg);
    -webkit-mask: radial-gradient(circle, transparent 34%, black 35%);
    mask: radial-gradient(circle, transparent 34%, black 35%);
    animation: pulse-glow 3.4s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%,100% {
        opacity: .85;
    }

    50% {
        opacity: 1;
        filter: brightness(1.15);
    }
}

.quad-core {
    position: absolute;
    inset: 0;
    margin: auto;
    width: 34%;
    height: 34%;
    border-radius: 50%;
    background: var(--panel);
    border: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: inset 0 0 22px rgba(0,0,0,.5);
}

    .quad-core .icon {
        width: 38%;
        height: 38%;
        stroke: var(--amber);
    }

.quad-labels span {
    position: absolute;
    font-size: .68rem;
    font-weight: 700;
    letter-spacing: .08em;
    color: var(--muted);
    background: var(--panel);
    border: 1px solid var(--line);
    padding: 3px 8px;
    border-radius: 999px;
}

.quad-labels .q1 {
    top: 6%;
    right: 2%;
    color: #140a02;
    background: var(--grad);
    border: none;
}

.quad-labels .q2 {
    top: 6%;
    left: 2%;
}

.quad-labels .q3 {
    bottom: 6%;
    left: 2%;
}

.quad-labels .q4 {
    bottom: 6%;
    right: 2%;
}

.quad-caption {
    text-align: center;
    color: var(--muted);
    font-size: .82rem;
    margin-top: 18px;
}

/* ---------- SECTION SHELL ---------- */
section {
    padding: 30px 0;
}

.section-alt {
    background: var(--panel);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.section-head {
    max-width: 640px;
    margin-bottom: 46px;
}

    .section-head h2 {
        font-size: clamp(1.7rem,2.6vw,2.3rem);
        margin-bottom: 14px;
    }

    .section-head p {
        color: var(--muted);
    }

.center {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

/* ---------- WHY CHOOSE ---------- */
.why-grid {
    display: grid;
    grid-template-columns: repeat(2,1fr);
    gap: 20px;
}

.why-card {
    background: var(--panel2);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 26px;
    display: flex;
    gap: 16px;
}

    .why-card .icon-box {
        width: 44px;
        height: 44px;
        border-radius: 11px;
        flex-shrink: 0;
        background: rgba(245,166,35,.12);
        border: 1px solid rgba(245,166,35,.3);
        display: flex;
        align-items: center;
        justify-content: center;
    }

        .why-card .icon-box .icon {
            stroke: var(--amber);
            width: 22px;
            height: 22px;
        }

    .why-card h3 {
        font-size: 1.05rem;
        margin-bottom: 6px;
    }

    .why-card p {
        color: var(--muted);
        font-size: .92rem;
    }

/* ---------- APPLICATIONS ---------- */
.app-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 22px;
}

.app-card {
    background: var(--panel2);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 28px;
    transition: border-color .2s ease, transform .2s ease;
}

    .app-card:hover {
        border-color: rgba(245,166,35,.4);
        transform: translateY(-3px);
    }

    .app-card .icon-box {
        width: 48px;
        height: 48px;
        border-radius: 12px;
        background: linear-gradient(145deg, rgb(243 158 36), rgb(230 98 45));
        border: 1px solid rgb(230 97 45);
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 18px;
    }

        .app-card .icon-box .icon {
            stroke: #ffffff;
        }

    .app-card h3 {
        font-size: 1.12rem;
        margin-bottom: 8px;
    }

    .app-card > p.desc {
        color: var(--muted);
        font-size: .9rem;
        margin-bottom: 14px;
    }

    .app-card ul li {
        display: flex;
        align-items: flex-start;
        gap: 8px;
        font-size: .85rem;
        color: #d8dbe1;
        padding: 5px 0;
    }

        .app-card ul li .icon {
            width: 14px;
            height: 14px;
            stroke: var(--flame);
            margin-top: 3px;
        }

/* ---------- BENEFITS ---------- */
.benefit-grid {
    display: grid;
    grid-template-columns: repeat(5,1fr);
    gap: 16px;
}

.benefit-card {
    text-align: center;
    padding: 24px 14px;
    background: var(--panel2);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

    .benefit-card .icon-box {
        width: 46px;
        height: 46px;
        margin: 0 auto 14px;
        border-radius: 50%;
        background: var(--grad);
        display: flex;
        align-items: center;
        justify-content: center;
    }

        .benefit-card .icon-box .icon {
            stroke: #140a02;
            width: 22px;
            height: 22px;
        }

    .benefit-card h4 {
        font-size: .88rem;
        font-weight: 600;
        font-family: 'Inter',sans-serif;
        color: var(--text);
    }

/* ---------- PROCEDURE ---------- */
.proc-list {
    display: grid;
    grid-template-columns: repeat(5,1fr);
    gap: 18px;
    counter-reset: step;
}

.proc-step {
    position: relative;
    padding: 26px 18px 20px;
    background: var(--panel2);
    border: 1px solid var(--line);
    border-radius: var(--radius);
}

    .proc-step .num {
        font-family: 'Fraunces',serif;
        font-size: 1.6rem;
        color: transparent;
        -webkit-text-stroke: 1px var(--amber);
        margin-bottom: 12px;
        display: block;
    }

    .proc-step .icon-box {
        width: 38px;
        height: 38px;
        border-radius: 10px;
        background: rgba(77,216,242,.1);
        border: 1px solid rgba(77,216,242,.25);
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 14px;
    }

        .proc-step .icon-box .icon {
            stroke: var(--amber);
            width: 19px;
            height: 19px;
        }

    .proc-step h4 {
        font-family: 'Inter',sans-serif;
        font-size: .92rem;
        font-weight: 600;
        margin-bottom: 6px;
    }

    .proc-step p {
        color: var(--muted);
        font-size: .82rem;
    }

.proc-note {
    text-align: center;
    margin-top: 30px;
    color: var(--muted);
    font-size: .9rem;
}

    .proc-note strong {
        color: var(--amber);
    }

/* ---------- SAFETY BAND ---------- */
.safety {
    display: grid;
    grid-template-columns: .9fr 1.1fr;
    gap: 50px;
    align-items: center;
    background: linear-gradient(135deg, rgba(77,216,242,.07), transparent 60%);
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 48px;
}

.safety-badge {
    width: 190px;
    height: 190px;
    border-radius: 50%;
    margin: 0 auto;
    border: 1.5px dashed rgb(215 90 54 / 70%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

    .safety-badge::before {
        content: "";
        position: absolute;
        inset: 14px;
        border-radius: 50%;
        border: 1px solid rgb(223 168 12 / 43%);
    }
    .safety-badge .icon {
        width: 64px;
        height: 64px;
        stroke: var(--amber);
    }

.safety h2 {
    font-size: clamp(1.5rem,2.2vw,2rem);
    margin-bottom: 14px;
}

.safety p {
    color: var(--muted);
    margin-bottom: 14px;
}

.safety-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 16px;
}

    .safety-tags span {
        font-size: .78rem;
        font-weight: 600;
        padding: 7px 14px;
        border-radius: 999px;
        background: var(--panel);
        border: 1px solid var(--line);
        color: var(--amber);
    }

/* ---------- WHY RAYDENT ---------- */
.raydent-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.raydent-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 11px 0;
    border-bottom: 1px solid var(--line);
    font-size: .94rem;
    color: #dfe2e7;
}

    .raydent-list li:last-child {
        border-bottom: none;
    }

.raydent-list .icon {
    width: 18px;
    height: 18px;
    stroke: var(--amber);
    margin-top: 2px;
}

.doctor-card {
    background: var(--panel2);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 30px;
    text-align: center;
}

.doctor-avatar {
    width: 76px;
    height: 76px;
    border-radius: 50%;
    margin: 0 auto 16px;
    background: var(--grad);
    display: flex;
    align-items: center;
    justify-content: center;
}

    .doctor-avatar .icon {
        stroke: #140a02;
        width: 34px;
        height: 34px;
    }

.doctor-card h3 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.doctor-card span.role {
    color: var(--amber);
    font-size: .82rem;
    font-weight: 600;
}

.doctor-card p {
    color: var(--muted);
    font-size: .88rem;
    margin-top: 14px;
}

/* ---------- FAQ ---------- */
.faq-list {
   /* max-width: 760px;*/
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--panel2);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
}

.faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 20px 24px;
    background: none;
    border: none;
    color: var(--text);
    text-align: left;
    font-family: 'Inter',sans-serif;
    font-weight: 600;
    font-size: .96rem;
    cursor: pointer;
}

    .faq-q .icon {
        stroke: var(--amber);
        width: 19px;
        height: 19px;
        transition: transform .25s ease;
        flex-shrink: 0;
    }

.faq-item[open] .faq-q .icon {
    transform: rotate(45deg);
}

.faq-a {
    padding: 0 24px 20px;
    color: var(--muted);
    font-size: .9rem;
    max-width: 64ch;
}

summary {
    list-style: none;
}

    summary::-webkit-details-marker {
        display: none;
    }


/* ---------- RESPONSIVE ---------- */
@media (max-width: 980px) {
    .hero-grid, .why-grid, .raydent-grid, .safety {
        grid-template-columns: 1fr;
    }

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

    .benefit-grid {
        grid-template-columns: repeat(3,1fr);
    }

    .proc-list {
        grid-template-columns: repeat(3,1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .quad-wrap {
        margin-top: 20px;
    }
}

@media (max-width: 760px) {
   

    .app-grid {
        grid-template-columns: 1fr;
    }

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

    .proc-list {
        grid-template-columns: 1fr 1fr;
    }

    section {
        padding: 60px 0;
    }

    .safety {
        padding: 32px 22px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 20px;
    }

    .cta-band {
        padding: 50px 22px;
    }
}

@media (max-width: 480px) {
    .benefit-grid, .proc-list {
        grid-template-columns: 1fr 1fr;
    }
}