/* ==========================================================================
   CALCULADORA IFCS — Global Styles
   Reset, variables, typography, navbar, buttons, utilities
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Source+Sans+Pro:ital,wght@0,300;0,400;0,600;0,700;0,900;1,400&display=swap');

/* --- Custom Properties --------------------------------------------------- */

:root {
    --white: hsl(0, 0%, 100%);
    --blue: hsl(188, 100%, 33%);
    --darkBlue: hsl(209, 74%, 27%);
    --green: hsl(77, 52%, 74%);
    --yellow: hsl(40, 76%, 55%);
    --gray: hsl(0, 0%, 94%);
    --grayText: hsl(0, 0%, 71%);

    --shadow-sm: 0 0.0625rem 0.25rem rgba(0, 0, 0, 0.08);
    --shadow: 0 0.125rem 0.75rem rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 0.25rem 1.5rem rgba(0, 0, 0, 0.16);
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --transition: 0.25s ease;
}

/* --- Reset --------------------------------------------------------------- */

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Source Sans Pro', sans-serif;
    line-height: 1.5;
    color: var(--darkBlue);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

a {
    transition: color var(--transition), opacity var(--transition);
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
}

/* ==========================================================================
   NAVBAR
   ========================================================================== */

.header {
    background: var(--darkBlue);
    position: sticky;
    top: 0;
    z-index: 1100;
    box-shadow: var(--shadow-sm);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.625rem 1.25rem;
    max-width: 75rem;
    margin: 0 auto;
    position: relative;
    min-height: 3.5rem;
}

.navbar__logo {
    height: 2.25rem;
    width: auto;
    display: block;
}

/* --- Hamburger toggle (mobile) ------------------------------------------- */

.nav__checkbox {
    display: none;
}

.nav__toggle {
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 110;
    padding: 0.5rem;
    min-width: 2.75rem;
    min-height: 2.75rem;
}

.nav__toggle .close {
    display: none;
}

#nav__checkbox:checked ~ label.nav__toggle .close {
    display: block;
}

#nav__checkbox:checked ~ label.nav__toggle .menu {
    display: none;
}

/* --- Mobile menu panel --------------------------------------------------- */

.navbar-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 4%;
    right: 4%;
    background-color: var(--white);
    border-radius: var(--radius-lg);
    padding: 1rem 0 1.25rem;
    box-shadow: var(--shadow-lg);
    z-index: 105;
}

#nav__checkbox:checked ~ .navbar-content {
    display: block;
    animation: fadeSlideIn 0.2s ease-out;
}

.navbar-content > .menu {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* --- Menu items ---------------------------------------------------------- */

.menu-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.selected-option {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    cursor: pointer;
    padding: 0.625rem 1rem;
    min-height: 2.75rem;
}

.selected-option a {
    display: flex;
    align-items: center;
    text-decoration: none;
    min-height: 2.75rem;
    padding: 0;
}

.menu__item {
    color: var(--darkBlue);
    font-weight: 600;
    font-size: 1rem;
    list-style: none;
    transition: color var(--transition);
}

.menu li {
    cursor: pointer;
}

.item-icon {
    width: 0.625rem;
    height: 0.625rem;
    background: url(../img/icon-arrow-dark.svg) center / contain no-repeat;
    display: inline-block;
    transition: transform var(--transition);
    flex-shrink: 0;
}

.item-icon__rotate {
    transform: rotate(180deg);
}

.select-clicked .menu__item {
    color: var(--yellow);
}

/* --- Submenus ------------------------------------------------------------ */

.submenu {
    display: none;
    opacity: 0;
    background-color: var(--green);
    border-radius: var(--radius);
    width: 75%;
    padding: 0.75rem 1rem;
    transition: opacity var(--transition);
    text-align: center;
}

.submenu.menu-open {
    display: block;
    opacity: 1;
}

.submenu_container {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.submenu__item {
    color: var(--darkBlue);
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.5rem 0.25rem;
    min-height: 2.75rem;
    display: flex;
    align-items: center;
    cursor: pointer;
    transition: color var(--transition);
}

.submenu__item:hover,
.submenu__item.active {
    color: var(--white);
}

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

.navbar-content li {
    list-style: none;
}

/* --- Navbar: tablet ------------------------------------------------------ */

@media (min-width: 768px) {
    .navbar {
        padding: 0.625rem 2rem;
    }

    .navbar__logo {
        height: 2.5rem;
    }
}

/* --- Navbar: desktop ----------------------------------------------------- */

@media (min-width: 1024px) {
    .navbar {
        padding: 0.5rem 2.5rem;
    }

    .navbar__logo {
        height: 2.75rem;
    }

    .nav__toggle {
        display: none;
    }

    .navbar-content {
        display: flex;
        position: static;
        background: transparent;
        box-shadow: none;
        padding: 0;
        width: auto;
    }

    .navbar-content > .menu {
        flex-direction: row;
        gap: 0.125rem;
        align-items: center;
    }

    .menu-option {
        position: relative;
        width: auto;
    }

    .selected-option {
        padding: 0.5rem 0.75rem;
    }

    .menu__item {
        color: var(--white);
        font-size: 0.95rem;
        white-space: nowrap;
    }

    .menu__item:hover {
        color: var(--yellow);
    }

    .item-icon {
        background-image: url(../img/icon-arrow-light.svg);
    }

    /* Desktop dropdowns */
    .submenu {
        position: absolute;
        top: 100%;
        left: 50%;
        transform: translateX(-50%);
        width: auto;
        min-width: 15rem;
        padding: 0.75rem 1.25rem;
        box-shadow: var(--shadow);
        z-index: 110;
        text-align: left;
        /* Delay the hide so cursor can reach the menu */
        transition: opacity 0.2s 0.08s, visibility 0.2s 0.08s;
        visibility: hidden;
    }

    /* Invisible bridge between trigger and dropdown */
    .submenu::before {
        content: "";
        position: absolute;
        bottom: 100%;
        left: 0;
        width: 100%;
        height: 0.5rem;
    }

    .menu-option:hover > .submenu,
    .submenu.menu-open {
        display: block;
        opacity: 1;
        visibility: visible;
        transition-delay: 0s;
    }

    .select-clicked .menu__item {
        color: var(--yellow);
    }
}

/* ==========================================================================
   SHARED IMAGE STYLES
   ========================================================================== */

.img1, .img2 {
    width: 100%;
    border: 0;
    margin: 0;
    display: block;
}

@media (min-width: 1024px) {
    .img1, .img2 {
        max-height: 28rem;
        object-fit: cover;
    }
}

/* ==========================================================================
   UTILITIES
   ========================================================================== */

.hidden {
    display: none !important;
}

/* Conditional field reveal animation */
[id^="Box_"]:not(.hidden) {
    animation: fadeSlideIn 0.3s ease-out;
}

@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(-0.5rem);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================================================
   PLACEHOLDER PAGES
   ========================================================================== */

.pagina-placeholder {
    max-width: 700px;
    margin: 0 auto;
    padding: 4rem 1.5rem;
    min-height: calc(100vh - 14rem);
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1rem;
}

.pagina-placeholder h1 {
    color: var(--darkBlue);
    font-size: 2rem;
    font-weight: 700;
}

.pagina-placeholder p {
    color: var(--darkBlue);
    font-size: 1.05rem;
    line-height: 1.6;
}

/* ==========================================================================
   PRINT STYLES
   ========================================================================== */

@media print {
    .header,
    .button-container,
    .calc-btn-cont,
    .footer {
        display: none !important;
    }

    body {
        font-size: 11pt;
        color: #000;
        background: #fff;
    }

    .hero {
        background: none !important;
        color: #000 !important;
        height: auto !important;
        padding: 1rem 0 !important;
    }

    .form-section {
        break-inside: avoid;
        page-break-inside: avoid;
        border: 1px solid #ccc;
        margin-bottom: 0.5rem;
    }

    .res-gral {
        background: none !important;
        color: #000 !important;
    }

    a[href]::after {
        content: none;
    }
}