.welcome-overlay {
    position: fixed;
    z-index: 2000;
    inset: 0;
    display: grid;
    place-items: center;
    padding: clamp(1rem, 4vw, 2.5rem);
    background: rgb(5 20 34 / 72%);
    opacity: 0;
    transition: opacity 1000ms ease;
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

.welcome-overlay[hidden] {
    display: none;
}

.welcome-overlay.is-visible {
    opacity: 1;
}

.welcome-panel {
    position: relative;
    display: grid;
    width: min(100%, 67rem);
    min-height: min(40rem, calc(100dvh - 3rem));
    grid-template-columns: 1.05fr 0.95fr;
    overflow: hidden;
    border: 1px solid rgb(255 255 255 / 62%);
    border-radius: 1.35rem;
    background: #fff;
    box-shadow: 0 32px 100px rgb(2 15 27 / 35%);
    opacity: 0;
    transform: translateY(22px) scale(0.985);
    transition: opacity 1000ms ease, transform 1000ms cubic-bezier(0.2, 0.75, 0.25, 1);
}

.welcome-panel.is-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.welcome-panel.is-visible .welcome-brand,
.welcome-panel.is-visible .welcome-eyebrow,
.welcome-panel.is-visible h1 {
    animation: welcome-copy-reveal 600ms 180ms ease both;
}

.welcome-panel.is-visible .welcome-slogan {
    animation: welcome-copy-reveal 650ms 900ms ease both;
}

.welcome-panel.is-visible .welcome-description,
.welcome-panel.is-visible .welcome-cta {
    animation: welcome-copy-reveal 600ms 1250ms ease both;
}

.welcome-close {
    position: absolute;
    z-index: 2;
    top: 1rem;
    right: 1rem;
    display: grid;
    width: 2.7rem;
    height: 2.7rem;
    place-items: center;
    border: 1px solid rgb(13 35 54 / 12%);
    border-radius: 50%;
    color: #17344b;
    background: rgb(255 255 255 / 92%);
    cursor: pointer;
    font-size: 1.8rem;
    line-height: 1;
    transition: background-color 160ms ease, transform 160ms ease;
}

.welcome-close:hover {
    background: #eaf6fc;
    transform: rotate(90deg);
}

.welcome-close:focus-visible,
.welcome-cta:focus-visible {
    outline: 3px solid #1687c9;
    outline-offset: 3px;
}

.welcome-copy {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: clamp(2rem, 5vw, 4.3rem);
    color: #17212b;
    background:
        radial-gradient(ellipse at 6% 100%, rgb(22 135 201 / 9%), transparent 48%),
        linear-gradient(145deg, #fff 0%, #f5fafd 100%);
}

.welcome-brand {
    display: inline-flex;
    max-width: 13rem;
    margin-bottom: clamp(2rem, 5vh, 3.5rem);
}

.welcome-brand img {
    display: block;
    width: 100%;
    height: auto;
}

.welcome-eyebrow {
    margin: 0 0 0.8rem;
    color: #126fa6;
    font-size: 0.73rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    line-height: 1.4;
    text-transform: uppercase;
}

.welcome-copy h1 {
    margin: 0 0 1.4rem;
    color: #102d45;
    font-size: clamp(2rem, 4vw, 3.4rem);
    font-weight: 750;
    letter-spacing: -0.055em;
    line-height: 1.04;
}

.welcome-copy h1 span {
    display: block;
    color: #1687c9;
}

.welcome-slogan {
    max-width: 33rem;
    margin: 0 0 1.1rem;
    color: #0b1f33;
    font-family: "Noto Sans Devanagari", "Nirmala UI", "Mangal", var(--font-sans);
    font-size: clamp(1.45rem, 2.4vw, 1.95rem);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.38;
}

.welcome-description {
    max-width: 27rem;
    margin: 0 0 1.8rem;
    color: #596d7d;
    font-family: "Noto Sans Devanagari", "Nirmala UI", "Mangal", var(--font-sans);
    font-size: 1rem;
    line-height: 1.65;
}

.welcome-cta {
    display: inline-flex;
    min-height: 3rem;
    align-items: center;
    gap: 0.7rem;
    padding: 0.8rem 1.2rem;
    border-radius: 0.55rem;
    color: #fff;
    background: #126fa6;
    font-size: 0.92rem;
    font-weight: 650;
    font-family: "Noto Sans Devanagari", "Nirmala UI", "Mangal", var(--font-sans);
    text-decoration: none;
    transition: background-color 160ms ease, transform 160ms ease;
}

.welcome-cta:hover {
    color: #fff;
    background: #0b4d76;
    transform: translateY(-1px);
}

.welcome-cta span {
    font-size: 1.25rem;
    line-height: 1;
}

.welcome-visual {
    position: relative;
    min-height: 28rem;
    overflow: hidden;
    background: #123b5d;
}

.welcome-visual::before,
.welcome-visual::after {
    position: absolute;
    z-index: 1;
    right: -5rem;
    bottom: -7rem;
    width: 27rem;
    height: 18rem;
    border: 1px solid rgb(172 229 255 / 25%);
    border-radius: 50%;
    content: "";
    pointer-events: none;
}

.welcome-visual::after {
    right: -2rem;
    bottom: -8.3rem;
    width: 30rem;
    height: 19rem;
    border-color: rgb(172 229 255 / 17%);
}

.welcome-visual__image,
.welcome-visual__shade {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.welcome-visual__image {
    object-fit: cover;
    object-position: center;
    animation: welcome-image-reveal 1.2s ease-out both;
}

.welcome-visual__shade {
    background: linear-gradient(180deg, rgb(6 28 47 / 3%) 40%, rgb(5 23 39 / 76%) 100%);
}

.welcome-visual__caption {
    position: absolute;
    z-index: 2;
    right: 1.5rem;
    bottom: 1.5rem;
    left: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    color: #fff;
    font-size: 0.92rem;
    font-weight: 600;
    text-shadow: 0 1px 10px rgb(0 0 0 / 28%);
}

.welcome-visual__mark {
    width: 0.55rem;
    height: 0.55rem;
    flex: none;
    border-radius: 50%;
    background: #6dcaf2;
    box-shadow: 0 0 0 0.3rem rgb(109 202 242 / 20%);
}

.welcome-waterline {
    position: absolute;
    z-index: 1;
    right: -5%;
    bottom: 3.7rem;
    width: 110%;
    height: auto;
    overflow: visible;
    opacity: 0.62;
    pointer-events: none;
}

.welcome-waterline path {
    stroke: rgb(164 228 255 / 64%);
    stroke-width: 1.2;
    vector-effect: non-scaling-stroke;
}

@keyframes welcome-image-reveal {
    from { transform: scale(1.04); }
    to { transform: scale(1); }
}

@keyframes welcome-copy-reveal {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

:root[data-theme="dark"] .welcome-panel {
    border-color: #29404f;
    background: #14232e;
}

:root[data-theme="dark"] .welcome-copy {
    color: #e4edf3;
    background:
        radial-gradient(ellipse at 6% 100%, rgb(22 135 201 / 15%), transparent 48%),
        linear-gradient(145deg, #14232e 0%, #182c39 100%);
}

:root[data-theme="dark"] .welcome-copy h1,
:root[data-theme="dark"] .welcome-slogan {
    color: #e7f0f7;
}

:root[data-theme="dark"] .welcome-description {
    color: #b1c0cb;
}

:root[data-theme="dark"] .welcome-close {
    border-color: rgb(255 255 255 / 15%);
    color: #e7f0f7;
    background: #1b303d;
}

@media (max-width: 46rem) {
    .welcome-overlay {
        padding: 0.75rem;
    }

    .welcome-panel {
        width: min(100%, 32rem);
        min-height: 0;
        max-height: calc(100dvh - 1.5rem);
        grid-template-columns: 1fr;
        grid-template-rows: minmax(12rem, 30dvh) minmax(0, 1fr);
        overflow-y: auto;
        border-radius: 1rem;
    }

    .welcome-visual {
        grid-row: 1;
        min-height: 12rem;
    }

    .welcome-copy {
        grid-row: 2;
        padding: 1.5rem clamp(1.35rem, 6vw, 2rem) 1.7rem;
    }

    .welcome-brand {
        max-width: 10.5rem;
        margin-bottom: 1.3rem;
    }

    .welcome-copy h1 {
        max-width: 21rem;
        margin-bottom: 0.85rem;
        font-size: clamp(1.9rem, 9vw, 2.6rem);
    }

    .welcome-slogan {
        margin-bottom: 0.7rem;
        font-size: clamp(1.2rem, 5.7vw, 1.55rem);
    }

    .welcome-description {
        margin-bottom: 1rem;
        font-size: 0.92rem;
    }

    .welcome-slogan {
        font-size: clamp(1.35rem, 6vw, 1.7rem);
    }

    .welcome-close {
        top: 0.7rem;
        right: 0.7rem;
        width: 2.5rem;
        height: 2.5rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .welcome-overlay,
    .welcome-panel {
        transition-duration: 1ms;
    }

    .welcome-visual__image {
        animation: none;
    }

    .welcome-panel.is-visible .welcome-brand,
    .welcome-panel.is-visible .welcome-eyebrow,
    .welcome-panel.is-visible h1,
    .welcome-panel.is-visible .welcome-slogan,
    .welcome-panel.is-visible .welcome-description,
    .welcome-panel.is-visible .welcome-cta {
        animation: none;
    }
}