/* ==========================================================================
   Registro de invitados — acento DORADO, deliberadamente distinto del azul
   de patrocinios para que el visitante no confunda los dos caminos.
   ========================================================================== */
:root {
    --m45-gold: #ffcf4a;
    --m45-gold-2: #ff9f1c;
    --m45-gold-ink: #1a1203;
}

.m45-reg-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border: 0;
    border-radius: 999px;
    background: linear-gradient(100deg, #ffe27a 0%, var(--m45-gold) 35%, var(--m45-gold-2) 100%);
    color: var(--m45-gold-ink) !important;
    font-family: var(--heading-font);
    font-weight: 700;
    font-size: 17px;
    letter-spacing: 0.3px;
    line-height: 1.1;
    white-space: nowrap;
    overflow: hidden;
    isolation: isolate;
    box-shadow: 0 10px 30px rgba(255, 170, 30, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.6);
    animation: m45-pulse 2.6s ease-out infinite;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    cursor: pointer;
}

.m45-reg-btn i {
    font-size: 1.25em;
}

/* Destello que cruza el botón */
.m45-reg-btn::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, 0.75) 50%, transparent 70%);
    transform: translateX(-120%);
    animation: m45-shine 3.2s ease-in-out infinite;
}

.m45-reg-btn:hover {
    transform: translateY(-2px) scale(1.03);
    color: var(--m45-gold-ink) !important;
}

.m45-reg-btn:disabled {
    opacity: 0.7;
    cursor: wait;
}

.m45-reg-btn-lg {
    padding: 20px 34px;
    font-size: clamp(18px, 1rem + 0.4vw, 21px);
}

.m45-reg-btn-sm {
    padding: 12px 22px;
    font-size: 16px;
}

.m45-reg-btn-arrow {
    transition: transform 0.25s ease;
}

.m45-reg-btn:hover .m45-reg-btn-arrow {
    transform: translateX(4px);
}

@keyframes m45-pulse {
    0% { box-shadow: 0 10px 30px rgba(255, 170, 30, 0.35), 0 0 0 0 rgba(255, 207, 74, 0.55); }
    70% { box-shadow: 0 10px 30px rgba(255, 170, 30, 0.35), 0 0 0 16px rgba(255, 207, 74, 0); }
    100% { box-shadow: 0 10px 30px rgba(255, 170, 30, 0.35), 0 0 0 0 rgba(255, 207, 74, 0); }
}

@keyframes m45-shine {
    0%, 55% { transform: translateX(-120%); }
    85%, 100% { transform: translateX(120%); }
}

@media (prefers-reduced-motion: reduce) {
    .m45-reg-btn,
    .m45-reg-btn::after {
        animation: none;
    }
}

@media (max-width: 400px) {
    .m45-reg-btn-sm {
        padding: 10px 16px;
        font-size: 14px;
    }
}

/* Patrocinio: enlaces en azul, contraparte discreta del dorado */
.m45-sponsor-link {
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 999px;
    border: 1px solid rgba(31, 122, 255, 0.6);
    color: #cfe3ff;
    font-weight: 600;
    white-space: nowrap;
    transition: all 0.25s ease;
}

.m45-sponsor-link:hover {
    background: var(--m45-blue);
    border-color: var(--m45-blue);
    color: #fff;
}

.m45-btn-ghost-blue {
    border-color: rgba(31, 122, 255, 0.7);
    color: #cfe3ff;
}

.m45-btn-ghost-blue:hover {
    background: var(--m45-blue);
    border-color: var(--m45-blue);
    color: #fff;
}

/* Sección de registro ----------------------------------------------------- */
.m45-reg-area {
    background:
        radial-gradient(800px 500px at 0% 50%, rgba(255, 170, 30, 0.10), transparent 70%),
        linear-gradient(180deg, #07122e 0%, var(--m45-navy) 100%);
    border-top: 1px solid rgba(255, 207, 74, 0.25);
    border-bottom: 1px solid rgba(255, 207, 74, 0.25);
}

.m45-reg-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    right: -150px;
    top: -150px;
    background: radial-gradient(circle, rgba(255, 207, 74, 0.14), transparent 65%);
    pointer-events: none;
}

.m45-reg-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 18px;
    padding: 7px 16px;
    border-radius: 999px;
    background: rgba(255, 207, 74, 0.12);
    border: 1px solid rgba(255, 207, 74, 0.4);
    color: var(--m45-gold);
    font-family: var(--heading-font);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.m45-gold-text {
    background: linear-gradient(90deg, #ffe27a, var(--m45-gold-2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.m45-reg-perks {
    list-style: none;
    padding: 0;
    margin: 28px 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.m45-reg-perks li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #fff;
    font-size: 17px;
}

.m45-reg-perks i {
    color: var(--m45-gold);
    font-size: 24px;
}

.m45-reg-note {
    color: #8aa3cf;
    font-size: 15px;
    margin: 0;
}

.m45-reg-note a {
    color: #8ec2ff;
    text-decoration: underline;
}

.m45-reg-card {
    position: relative;
    padding: clamp(24px, 3vw, 44px);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 207, 74, 0.35);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35), 0 0 0 6px rgba(255, 207, 74, 0.04);
    backdrop-filter: blur(10px);
}

.m45-reg-card .m45-input:focus {
    border-color: var(--m45-gold);
    box-shadow: 0 0 0 3px rgba(255, 207, 74, 0.22);
}

/* Asistente de 3 pasos ---------------------------------------------------- */
.reg-step[hidden],
.reg-nav [hidden],
.reg-invited[hidden],
.reg-success[hidden],
#registroInvitadosForm[hidden] {
    display: none !important;
}

.reg-progress {
    display: flex;
    gap: 8px;
    margin-bottom: 40px;
}

.reg-progress-step {
    flex: 1;
    height: 6px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.12);
    position: relative;
    transition: background 0.3s ease;
}

.reg-progress-step span {
    position: absolute;
    top: 14px;
    left: 0;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    font-weight: 600;
    white-space: nowrap;
}

.reg-progress-step.active,
.reg-progress-step.done {
    background: linear-gradient(90deg, var(--m45-gold), var(--m45-gold-2));
}

.reg-progress-step.active span,
.reg-progress-step.done span {
    color: var(--m45-gold);
}

.reg-step-title {
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    margin: 0 0 20px;
}

.reg-phone {
    display: flex;
    gap: 12px;
}

.reg-phone .reg-lada {
    flex: 0 0 42%;
    max-width: 210px;
}

.reg-checks {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: 12px;
}

.reg-check {
    position: relative;
    cursor: pointer;
    margin: 0;
}

.reg-check input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.reg-check span {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(5, 13, 36, 0.6);
    color: #fff;
    font-weight: 600;
    transition: all 0.2s ease;
}

.reg-check span i {
    font-size: 22px;
    color: #9fb8e6;
}

.reg-check input:checked + span {
    border-color: var(--m45-gold);
    background: rgba(255, 207, 74, 0.12);
    box-shadow: 0 0 0 3px rgba(255, 207, 74, 0.15);
}

.reg-check input:checked + span i {
    color: var(--m45-gold);
}

.reg-check input:focus-visible + span {
    outline: 2px solid var(--m45-gold);
    outline-offset: 2px;
}

.reg-nav {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.reg-btn-prev {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 26px;
    border-radius: 999px;
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
    font-weight: 600;
    transition: border-color 0.2s ease;
}

.reg-btn-prev:hover {
    border-color: var(--m45-gold);
    color: var(--m45-gold);
}

.reg-success {
    text-align: center;
    padding: 30px 10px;
}

.reg-success-icon i {
    font-size: 72px;
    color: var(--m45-gold);
}

.reg-success h3 {
    color: #fff;
    font-size: 28px;
    font-weight: 700;
    margin: 12px 0;
}

.reg-success p {
    color: #b9cdf0;
    max-width: 440px;
    margin: 0 auto 24px;
}

/* Botón flotante en móvil ------------------------------------------------- */
.m45-reg-float {
    position: fixed;
    left: 16px;
    right: 80px;
    bottom: 18px;
    z-index: 98;
    justify-content: center;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.m45-reg-float.is-hidden {
    opacity: 0;
    transform: translateY(120%);
    pointer-events: none;
}

@media (max-width: 575px) {
    .reg-phone .reg-lada {
        flex-basis: 46%;
    }

    .reg-progress-step span {
        font-size: 11px;
    }
}