:root {
    --eoi-green: #348f41;
    --eoi-green-dark: #2a7334;
    --eoi-green-deep: #1f5a28;
    --eoi-green-soft: #e8f5ea;
    --eoi-ink: #152019;
    --eoi-muted: #5c6660;
    --eoi-border: #d8e3db;
    --eoi-card: #ffffff;
    --eoi-bg: #f4f8f5;
    --eoi-shadow: 0 22px 50px rgba(21, 32, 25, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Instrument Sans", system-ui, -apple-system, sans-serif;
    color: var(--eoi-ink);
    background: var(--eoi-bg);
    min-height: 100vh;
}

.page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.hero {
    position: relative;
    isolation: isolate;
    color: #fff;
    padding: 2.75rem 1.25rem 3.25rem;
    overflow: hidden;
}

.hero-backdrop {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-photo {
    position: absolute;
    inset: 0;
    background-image: url('../images/hero-conference-bg.jpg');
    background-size: cover;
    background-position: center 22%;
    background-repeat: no-repeat;
    transform: scale(1.03);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 55% at 50% 38%, rgba(255, 255, 255, 0.1), transparent 62%),
        linear-gradient(
            180deg,
            rgba(31, 90, 40, 0.84) 0%,
            rgba(52, 143, 65, 0.74) 45%,
            rgba(21, 32, 25, 0.9) 100%
        );
    box-shadow: inset 0 0 100px 24px rgba(0, 0, 0, 0.28);
}

.hero-inner {
    position: relative;
    z-index: 1;
    max-width: 72rem;
    margin: 0 auto;
    text-align: center;
}

.hero-logo-stage {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    max-width: 100%;
    margin: 0 auto 0.5rem;
    padding: 1rem 1.35rem 1.15rem;
    border-radius: 1.35rem;
    background: rgba(7, 16, 9, 0.28);
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-shadow:
        0 24px 48px rgba(0, 0, 0, 0.28),
        inset 0 1px 0 rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(3px);
}

.hero-cphia-logo-image {
    height: auto;
    display: block;
    margin: 0 auto;
    filter:
        drop-shadow(0 6px 14px rgba(0, 0, 0, 0.45))
        drop-shadow(0 20px 42px rgba(0, 0, 0, 0.35));
}

.hero-cphia-logo-placeholder {
    height: 3.25rem;
    margin: 0 auto;
    border-radius: 1rem;
    border: 1.5px dashed rgba(255, 255, 255, 0.45);
    background: rgba(255, 255, 255, 0.06);
}

.hero-title {
    margin: 0.75rem 0 0;
    font-size: clamp(2rem, 6vw, 3.4rem);
    line-height: 1.05;
    letter-spacing: -0.03em;
    text-shadow: 0 2px 18px rgba(0, 0, 0, 0.35);
}

.hero-subtitle {
    margin: 1rem auto 0;
    max-width: 34rem;
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    line-height: 1.5;
    font-weight: 500;
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.4);
}

.main {
    flex: 1;
    width: 100%;
    max-width: 72rem;
    margin: -1.75rem auto 0;
    padding: 0 1.25rem 2.5rem;
}

.content-grid {
    display: grid;
    gap: 1.25rem;
}

.content-grid--center {
    place-items: center;
}

.intro-panel,
.form-panel,
.success-panel {
    background: var(--eoi-card);
    border: 1px solid var(--eoi-border);
    border-radius: 1.25rem;
    box-shadow: var(--eoi-shadow);
}

.intro-panel,
.form-panel,
.success-panel,
.hosts {
    opacity: 0;
    transform: translateY(14px);
    animation: rise-in 0.55s ease forwards;
}

.intro-panel {
    padding: 1.75rem;
}

.intro-kicker {
    margin: 0 0 0.5rem;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--eoi-green-dark);
    font-weight: 700;
}

.intro-title {
    margin: 0 0 0.85rem;
    font-size: 1.55rem;
    line-height: 1.2;
}

.intro-text {
    margin: 0 0 1rem;
    color: var(--eoi-muted);
    line-height: 1.65;
}

.intro-points {
    margin: 0;
    padding-left: 1.15rem;
    color: var(--eoi-ink);
    line-height: 1.7;
}

.form-panel {
    padding: 1.75rem;
    overflow: visible;
}

.form-panel--solo {
    width: min(100%, 42rem);
}

.success-panel {
    padding: 2.25rem 1.75rem;
    text-align: center;
    width: min(100%, 40rem);
}

.success-icon {
    width: 3.75rem;
    height: 3.75rem;
    margin: 0 auto 1rem;
    border-radius: 999px;
    background: var(--eoi-green-soft);
    color: var(--eoi-green-dark);
    display: grid;
    place-items: center;
    font-size: 1.7rem;
    font-weight: 700;
}

.lead {
    margin: 0 0 1rem;
    color: var(--eoi-muted);
    font-size: 1.05rem;
    line-height: 1.65;
}

.meta {
    margin: 0;
    color: var(--eoi-muted);
    font-size: 0.95rem;
}

.hosts {
    margin-top: 1.25rem;
    padding: 1.5rem 1.25rem 1.75rem;
    background: var(--eoi-card);
    border: 1px solid var(--eoi-border);
    border-radius: 1.25rem;
    box-shadow: var(--eoi-shadow);
    animation-delay: 0.12s;
}

.hosts-heading {
    margin: 0 0 1.1rem;
    text-align: center;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--eoi-muted);
    font-weight: 700;
}

.hosts-logos {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.host-logo-card {
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    text-align: center;
}

.host-logo-image {
    width: min(100%, 220px);
    height: 5.5rem;
    object-fit: contain;
}

.host-logo-placeholder {
    width: min(100%, 220px);
    height: 5.5rem;
    border: 1.5px dashed var(--eoi-border);
    border-radius: 0.85rem;
    display: grid;
    place-items: center;
    color: var(--eoi-muted);
    background: #fafcfa;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.host-logo-card figcaption {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--eoi-ink);
    line-height: 1.4;
    max-width: 16rem;
}

.footer {
    padding: 1rem 1.25rem 1.75rem;
    max-width: 72rem;
    margin: 0 auto;
    width: 100%;
    color: var(--eoi-muted);
    font-size: 0.85rem;
    line-height: 1.55;
    text-align: center;
}

.footer p {
    margin: 0;
}

[x-cloak] {
    display: none !important;
}

.eoi-form {
    display: grid;
    gap: 1rem;
    overflow: visible;
}

.field label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.4rem;
    font-size: 0.94rem;
}

.field input[type="text"],
.field input[type="email"] {
    width: 100%;
    padding: 0.72rem 0.85rem;
    border: 1px solid var(--eoi-border);
    border-radius: 0.7rem;
    font: inherit;
    background: #fff;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field input:focus {
    outline: none;
    border-color: var(--eoi-green);
    box-shadow: 0 0 0 3px rgba(52, 143, 65, 0.18);
}

.field-hint {
    margin: 0.35rem 0 0;
    font-size: 0.82rem;
    color: var(--eoi-muted);
}

.country-combobox {
    position: relative;
    z-index: 1;
}

.country-combobox:focus-within {
    z-index: 30;
}

.country-list-anchor {
    position: relative;
}

.country-list {
    position: absolute;
    z-index: 40;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 16rem;
    overflow-y: auto;
    margin: 0.35rem 0 0;
    padding: 0.35rem;
    list-style: none;
    background: #fff;
    border: 1px solid var(--eoi-border);
    border-radius: 0.7rem;
    box-shadow: 0 18px 40px rgba(21, 32, 25, 0.16);
}

.country-list--empty {
    margin: 0.35rem 0 0;
    padding: 0.85rem 0.95rem;
    font-size: 0.9rem;
    color: var(--eoi-muted);
    cursor: default;
}

.country-list li {
    padding: 0.6rem 0.7rem;
    border-radius: 0.45rem;
    cursor: pointer;
    line-height: 1.35;
}

.country-list li:hover,
.country-list li.is-active {
    background: var(--eoi-green-soft);
}

.btn-primary {
    margin-top: 0.35rem;
    width: 100%;
    padding: 0.9rem 1rem;
    border: 0;
    border-radius: 0.7rem;
    background: var(--eoi-green);
    color: #fff;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.15s ease;
}

.btn-primary:hover:not(:disabled) {
    background: var(--eoi-green-dark);
}

.btn-primary:disabled {
    opacity: 0.75;
    cursor: wait;
}

.alert {
    padding: 1rem 1.1rem;
    border-radius: 0.75rem;
    margin-bottom: 1rem;
}

.alert-error {
    background: #fef3f2;
    border: 1px solid #fecdca;
    color: #7a271a;
}

.alert-title {
    margin: 0 0 0.5rem;
    font-weight: 600;
}

.alert ul {
    margin: 0;
    padding-left: 1.1rem;
}

.hp-field {
    position: absolute;
    left: -10000px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

@keyframes rise-in {
    from {
        opacity: 0;
        transform: translateY(14px);
    }

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

@media (min-width: 900px) {
    .hero {
        padding: 3rem 2rem 3.5rem;
    }

    .main {
        padding-left: 2rem;
        padding-right: 2rem;
    }

    .content-grid {
        grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.15fr);
        align-items: start;
        gap: 1.5rem;
    }

    .hosts-logos {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 1.5rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .intro-panel,
    .form-panel,
    .success-panel,
    .hosts {
        animation: none;
        opacity: 1;
        transform: none;
    }

    .btn-primary,
    .field input[type="text"],
    .field input[type="email"] {
        transition: none;
    }
}