/* =========================
   HEADER — VIAJE INFORMADO
   Layout: [Marca] [Nav centrada] [Login]
   Fijo en desktop | sticky en móvil
   ========================= */

/* ─── Variables ─── */
.vi-header {
    --vi-h-bg:        #F8F8FF;
    --vi-h-blue:      #007FFF;
    --vi-h-blue-dark: #002d89;
    --vi-h-blue-deep: #000080;
    --vi-h-grad:      linear-gradient(135deg, #007FFF 0%, #000080 100%);
    --vi-h-ink:       #0b0c10;
    --vi-h-ease:      0.28s ease;
}

/* =========================
   DESKTOP BASE
   ========================= */

.vi-header {
    position: fixed;
    top: 12px;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1050;
    padding: 0 24px;
}

/* ─── Contenedor glass pill ─── */
.vi-header__glass {
    position: relative;        /* ancla para .vi-nav absoluto */
    height: 82px;
    min-height: 82px;
    max-width: 1400px;
    margin: 0 auto;

    display: flex;
    align-items: center;

    padding: 0 32px;
    border-radius: 38px;

    background: linear-gradient(
        135deg,
        rgba(248, 248, 255, .95),
        rgba(255, 255, 255, .88)
    );
    border: 1px solid rgba(15, 23, 42, .08);
    box-shadow:
        0 18px 42px rgba(15, 23, 42, .10),
        inset 0 1px 0 rgba(255, 255, 255, .82),
        inset 0 -1px 0 rgba(15, 23, 42, .04);

    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);

    transition:
        box-shadow var(--vi-h-ease),
        background var(--vi-h-ease),
        border-color var(--vi-h-ease);
}

/* Sombra más pronunciada al hacer scroll */
.vi-header--scrolled .vi-header__glass {
    box-shadow:
        0 24px 52px rgba(15, 23, 42, .16),
        inset 0 1px 0 rgba(255, 255, 255, .92),
        inset 0 -1px 0 rgba(15, 23, 42, .05);
    background: linear-gradient(
        135deg,
        rgba(248, 248, 255, .99),
        rgba(255, 255, 255, .97)
    );
    border-color: rgba(15, 23, 42, .11);
}

/* =========================
   MARCA (izquierda)
   ========================= */

.vi-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
    text-decoration: none;
    position: relative;
    z-index: 2;
}

.vi-brand:hover,
.vi-brand:focus { text-decoration: none; }

.vi-brand__logo {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    transition: transform .35s cubic-bezier(.34, 1.56, .64, 1);
}

.vi-brand:hover .vi-brand__logo {
    transform: scale(1.08) rotate(-5deg);
}

.vi-brand__logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.vi-brand__text {
    display: flex;
    flex-direction: row;
    align-items: baseline;
    gap: 5px;
}

.vi-brand__title {
    font-family: "Playfair Display", serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--vi-h-blue-dark);
    letter-spacing: .02em;
    white-space: nowrap;
    transition: color var(--vi-h-ease);
}

.vi-brand__subtitle {
    font-family: "Playfair Display", serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--vi-h-blue);
    letter-spacing: .02em;
    white-space: nowrap;
    transition: color var(--vi-h-ease);
}

.vi-brand:hover .vi-brand__title   { color: var(--vi-h-blue-deep); }
.vi-brand:hover .vi-brand__subtitle { color: var(--vi-h-blue-dark); }

/* =========================
   NAV DESKTOP (centro absoluto)
   ========================= */

.vi-nav {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 2px;
    z-index: 1;
}

.vi-nav__link {
    position: relative;
    display: inline-flex;
    align-items: center;
    height: 44px;
    padding: 0 12px;
    border-radius: 10px;
    overflow: hidden;

    text-decoration: none;
    color: var(--vi-h-ink);
    font-family: "Playfair Display", serif;
    font-size: .80rem;
    font-weight: 700;
    letter-spacing: .025em;
    white-space: nowrap;

    transition:
        color .22s ease,
        transform .22s ease;
}

/* Fondo pill animado al hacer hover */
.vi-nav__link::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 45, 137, .06);
    border-radius: 10px;
    opacity: 0;
    transform: scaleX(.8) scaleY(.85);
    transition:
        opacity .22s ease,
        transform .22s ease;
    pointer-events: none;
}

/* Subrayado que crece desde el centro */
.vi-nav__link::after {
    content: "";
    position: absolute;
    bottom: 5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--vi-h-grad);
    border-radius: 999px;
    box-shadow: 0 0 7px rgba(0, 127, 255, .35);
    transition: width .3s cubic-bezier(.25, .46, .45, .94);
    pointer-events: none;
}

.vi-nav__link:hover {
    color: var(--vi-h-blue-dark);
    transform: translateY(-1px);
}

.vi-nav__link:hover::before {
    opacity: 1;
    transform: scaleX(1) scaleY(1);
}

.vi-nav__link:hover::after {
    width: calc(100% - 24px);
}

.vi-nav__link.active {
    color: var(--vi-h-blue-dark);
}

.vi-nav__link.active::before {
    opacity: 1;
    transform: scaleX(1) scaleY(1);
    background: rgba(0, 45, 137, .07);
}

.vi-nav__link.active::after {
    width: calc(100% - 24px);
    box-shadow: 0 0 9px rgba(0, 45, 137, .30);
}

/* =========================
   ACCIONES / LOGIN (derecha)
   ========================= */

.vi-actions {
    margin-left: auto;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

.vi-login-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    overflow: hidden;

    padding: 10px 22px 10px 10px;
    border-radius: 999px;
    text-decoration: none;

    color: var(--vi-h-bg);
    font-family: "Playfair Display", serif;
    font-size: .92rem;
    font-weight: 800;
    letter-spacing: .04em;
    white-space: nowrap;

    background: var(--vi-h-grad);
    border: 1px solid rgba(248, 248, 255, .65);
    box-shadow:
        0 12px 24px rgba(0, 45, 137, .22),
        inset 0 1px 0 rgba(255, 255, 255, .20);

    transition:
        transform var(--vi-h-ease),
        box-shadow var(--vi-h-ease);
}

/* Destello shine que cruza el botón */
.vi-login-btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -120%;
    width: 60%;
    height: 100%;
    background: linear-gradient(
        105deg,
        transparent 35%,
        rgba(255, 255, 255, .32) 50%,
        transparent 65%
    );
    transition: left .55s ease;
    pointer-events: none;
}

.vi-login-btn:hover {
    transform: translateY(-2px);
    color: var(--vi-h-bg);
    box-shadow:
        0 20px 38px rgba(0, 45, 137, .32),
        inset 0 1px 0 rgba(255, 255, 255, .26);
}

.vi-login-btn:hover::before { left: 130%; }

.vi-login-btn:active {
    transform: translateY(0) scale(.97);
    box-shadow:
        0 8px 18px rgba(0, 45, 137, .20),
        inset 0 1px 0 rgba(255, 255, 255, .15);
    transition: transform .1s ease, box-shadow .1s ease;
}

.vi-login-btn__icon {
    width: 32px;
    height: 32px;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    border-radius: 50%;
    border: 1px solid rgba(248, 248, 255, .55);
    background: rgba(248, 248, 255, .12);
    color: var(--vi-h-bg);
    font-size: 1.05rem;
    transition:
        background .25s ease,
        border-color .25s ease;
}

.vi-login-btn:hover .vi-login-btn__icon {
    background: rgba(248, 248, 255, .22);
    border-color: rgba(248, 248, 255, .75);
}

/* =========================
   OCULTOS EN DESKTOP
   ========================= */

.vi-mobile-toggle,
.vi-mobile-menu { display: none; }

/* =========================
   DESKTOP REDUCIDO  1181 – 1450px
   ========================= */

@media (min-width: 1181px) and (max-width: 1450px) {
    .vi-header { padding: 0 18px; }

    .vi-header__glass {
        height: 76px;
        min-height: 76px;
        padding: 0 24px;
        border-radius: 32px;
        max-width: 1200px;
    }

    .vi-brand__logo { width: 50px; height: 50px; }

    .vi-brand__title,
    .vi-brand__subtitle { font-size: 1.28rem; }

    .vi-nav__link {
        font-size: .74rem;
        padding: 0 9px;
        height: 40px;
    }

    .vi-login-btn {
        padding: 9px 18px 9px 9px;
        font-size: .84rem;
        gap: 10px;
    }

    .vi-login-btn__icon {
        width: 28px;
        height: 28px;
        font-size: .95rem;
    }
}

/* =========================
   TABLET Y MÓVIL  ≤ 1180px
   ========================= */

@media (max-width: 1180px) {

    .vi-header {
        position: sticky;
        top: 0;
        padding: 0;
        overflow: visible;
    }

    .vi-header__glass {
        display: grid;
        grid-template-columns: 48px minmax(0, 1fr) 48px;
        align-items: center;
        width: 100%;
        max-width: 100%;
        height: 78px;
        min-height: 78px;
        max-height: 78px;
        padding-top: 7px;
        padding-bottom: 7px;
        padding-left: max(18px, env(safe-area-inset-left));
        padding-right: max(18px, env(safe-area-inset-right));
        margin: 0;
        border-radius: 0;
        background: linear-gradient(
            135deg,
            rgba(248, 248, 255, .98),
            rgba(255, 255, 255, .94)
        );
        border: none;
        border-bottom: 1px solid rgba(15, 23, 42, .08);
        box-shadow:
            0 4px 15px rgba(15, 23, 42, .06),
            inset 0 -1px 0 rgba(15, 23, 42, .03);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
    }

    /* Reset nav absoluto */
    .vi-nav {
        position: static !important;
        transform: none !important;
        display: none !important;
    }

    /* ── Hamburguesa ── */
    .vi-mobile-toggle {
        grid-column: 1;
        grid-row: 1;
        display: flex !important;
        align-items: center;
        justify-content: center;
        justify-self: start;
        align-self: center;
        width: 42px;
        height: 42px;
        border: none;
        background: transparent;
        padding: 0;
        cursor: pointer;
    }

    .vi-mobile-toggle__bars {
        position: relative;
        width: 30px;
        height: 22px;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }

    .vi-mobile-toggle__bar {
        width: 100%;
        height: 3px;
        border-radius: 999px;
        background: var(--vi-h-blue-dark);
        transition: all .3s ease;
    }

    .vi-mobile-toggle[aria-expanded="true"] .vi-mobile-toggle__bar--1 {
        transform: translateY(9.5px) rotate(45deg);
    }
    .vi-mobile-toggle[aria-expanded="true"] .vi-mobile-toggle__bar--2 { opacity: 0; }
    .vi-mobile-toggle[aria-expanded="true"] .vi-mobile-toggle__bar--3 {
        transform: translateY(-9.5px) rotate(-45deg);
    }

    /* ── Marca (columna central) ── */
    .vi-brand {
        grid-column: 2;
        grid-row: 1;
        justify-self: center;
        align-self: center;
        gap: 10px;
        z-index: 1;
    }

    .vi-brand__logo {
        width: 50px;
        height: 50px;
        flex: 0 0 50px;
    }

    .vi-brand:hover .vi-brand__logo { transform: none; }

    .vi-brand__text { gap: 4px; }

    .vi-brand__title,
    .vi-brand__subtitle { font-size: 1.1rem; }

    /* ── Acciones (columna derecha) ── */
    .vi-actions {
        grid-column: 3;
        grid-row: 1;
        justify-self: end;
        align-self: center;
        margin-left: 0;
    }

    .vi-login-btn {
        width: 44px;
        height: 44px;
        padding: 0;
        border-radius: 50%;
        justify-content: center;
        gap: 0;
        box-shadow:
            0 10px 22px rgba(0, 45, 137, .22),
            inset 0 1px 0 rgba(255, 255, 255, .18);
    }

    .vi-login-btn::before { display: none; }

    .vi-login-btn__icon {
        width: 100%;
        height: 100%;
        border: none;
        background: transparent;
        color: var(--vi-h-bg);
        font-size: 1.4rem;
    }

    /* ── Menú desplegable móvil ── */
    .vi-mobile-menu {
        position: fixed;
        top: calc(78px + env(safe-area-inset-top, 0px));
        left: 12px;
        right: 12px;
        width: auto;
        max-width: calc(100% - 24px);
        display: none;
        padding: 8px 0;
        background: linear-gradient(
            135deg,
            rgba(0, 127, 255, .96) 0%,
            rgba(0, 0, 128, .96) 100%
        );
        border: 1px solid rgba(248, 248, 255, .22);
        border-radius: 14px;
        box-shadow:
            0 18px 38px rgba(0, 45, 137, .24),
            inset 0 1px 0 rgba(255, 255, 255, .10);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        z-index: 9999;
        overflow: hidden;
    }

    .vi-mobile-menu.show {
        display: flex !important;
        flex-direction: column;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }

    .vi-mobile-menu__item {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 14px 24px;
        color: var(--vi-h-bg);
        text-decoration: none;
        font-family: "Inter", sans-serif;
        font-size: 1.05rem;
        font-weight: 600;
        border-left: 4px solid transparent;
        transition:
            background .22s ease,
            border-color .22s ease,
            transform .22s ease;
    }

    .vi-mobile-menu__item:hover,
    .vi-mobile-menu__item.active {
        background: rgba(248, 248, 255, .12);
        border-left-color: var(--vi-h-bg);
        transform: translateX(2px);
    }
}

/* =========================
   MÓVIL PEQUEÑO  ≤ 480px
   ========================= */

@media (max-width: 480px) {
    .vi-header__glass {
        grid-template-columns: 42px minmax(0, 1fr) 42px;
        height: 74px;
        min-height: 74px;
        max-height: 74px;
        padding-left: max(14px, env(safe-area-inset-left));
        padding-right: max(14px, env(safe-area-inset-right));
    }

    .vi-mobile-toggle { width: 38px; height: 38px; }
    .vi-mobile-toggle__bars { width: 28px; height: 21px; }

    .vi-brand__logo { width: 46px; height: 46px; flex-basis: 46px; }
    .vi-brand__title,
    .vi-brand__subtitle { font-size: 1rem; }

    .vi-login-btn { width: 42px; height: 42px; }
    .vi-login-btn__icon { font-size: 1.32rem; }

    .vi-mobile-menu {
        top: calc(74px + env(safe-area-inset-top, 0px));
        left: 10px;
        right: 10px;
        max-width: calc(100% - 20px);
    }
}

/* =========================
   MÓVIL MUY ANGOSTO  ≤ 380px
   ========================= */

@media (max-width: 380px) {
    .vi-brand__logo { width: 42px; height: 42px; flex-basis: 42px; }
    .vi-brand__title,
    .vi-brand__subtitle { font-size: .9rem; }
    .vi-mobile-toggle__bars { width: 26px; }
    .vi-login-btn { width: 40px; height: 40px; }
}