/*------------------------------------
- CSS LAYERS (Modern Cascade Control)
------------------------------------*/
@layer base, components, utilities, theme;

@layer base {
    :root {
        /* Core Brand Colors */
        --brand-color: #1478C7;
        --brand-color-rgb: 20, 120, 199;
        --brand-dark-color: #062280;
        --brand-light-color: #42a5f5;

        /* Text & Background */
        --text-color: #212529;
        --text-muted-color: #6c757d;
        --bg-color: #fff;
        --secondary-bg-color: #f8f9fa;
        --card-bg: #fff;
        --footer-bg: #1478C7;
        --footer-text: #fff;
        --nav-bg: rgba(233, 237, 240, 0.95);

        /* Gradient System */
        --gradient-primary: linear-gradient(135deg, #0d47a1 0%, #1976d2 50%, #42a5f5 100%);
        --gradient-accent: linear-gradient(135deg, #1565c0 0%, #1e88e5 100%);
        --gradient-hero: linear-gradient(135deg, #062280 0%, #1478C7 60%, #42a5f5 100%);
        --gradient-cta: linear-gradient(135deg, #062280 0%, #1478C7 100%);

        /* Glassmorphism Surfaces */
        --surface-glass: rgba(255, 255, 255, 0.85);
        --surface-glass-border: rgba(255, 255, 255, 0.3);
        --surface-glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
        --backdrop-blur: blur(12px);

        /* Shadows */
        --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
        --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
        --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
        --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.18);

        /* Animation */
        --transition-fast: 0.2s ease;
        --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);

        /* Border Radius */
        --radius-sm: 8px;
        --radius-md: 12px;
        --radius-lg: 16px;
        --radius-xl: 24px;
    }
}

/* End @layer base */

/*------------------------------------
- ACCESSIBILITY: Skip Link
------------------------------------*/
.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--brand-color);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    z-index: 10000;
    transition: top var(--transition-smooth);
}

.skip-link:focus {
    top: 10px;
    outline: 2px solid var(--brand-dark-color);
    outline-offset: 2px;
}

/*------------------------------------
- ACCESSIBILITY: Reduced Motion
------------------------------------*/
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .fade-in-up,
    .fade-in-left,
    .fade-in-right {
        opacity: 1 !important;
        transform: none !important;
    }
}

/*------------------------------------
- SCROLL PROGRESS INDICATOR
------------------------------------*/
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient-primary);
    z-index: 10001;
    transition: width 0.1s ease-out;
    pointer-events: none;
}

[data-theme="dark"] #scroll-progress {
    background: var(--gradient-primary);
    box-shadow: 0 0 8px rgba(76, 163, 232, 0.5);
}

[data-theme="dark"] {
    /* Core Colors - Dark */
    --brand-color: #4ca3e8;
    --brand-color-rgb: 76, 163, 232;
    --brand-dark-color: #9cb4ff;
    --brand-light-color: #1976d2;

    /* Text & Background - Dark */
    --text-color: #e8e8e8;
    --text-muted-color: #a0a0a0;
    --bg-color: #0d0d0d;
    --secondary-bg-color: #1a1a1a;
    --card-bg: #1e1e1e;
    --footer-bg: #0a0a0a;
    --footer-text: #d0d0d0;
    --nav-bg: rgba(26, 26, 26, 0.95);

    /* Gradients - Dark */
    --gradient-primary: linear-gradient(135deg, #1565c0 0%, #1976d2 50%, #4ca3e8 100%);
    --gradient-accent: linear-gradient(135deg, #1e88e5 0%, #42a5f5 100%);
    --gradient-hero: linear-gradient(135deg, #0d47a1 0%, #1565c0 60%, #1976d2 100%);
    --gradient-cta: linear-gradient(135deg, #0d47a1 0%, #1565c0 100%);

    /* Glassmorphism - Dark */
    --surface-glass: rgba(30, 30, 30, 0.85);
    --surface-glass-border: rgba(255, 255, 255, 0.1);
    --surface-glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);

    /* Shadows - Dark */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.6);

    /* Form inputs - Dark */
    --input-bg: #2a2a2a;
    --input-border: #404040;
    --input-text: #e8e8e8;
    --input-placeholder: #888;
}

/* Dark mode form controls */
[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select,
[data-theme="dark"] select.form-control,
[data-theme="dark"] textarea.form-control,
[data-theme="dark"] input.form-control,
[data-theme="dark"] input[readonly].form-control {
    background-color: var(--input-bg) !important;
    border-color: var(--input-border) !important;
    color: var(--input-text) !important;
}

[data-theme="dark"] .form-control::placeholder {
    color: var(--input-placeholder) !important;
}

[data-theme="dark"] .form-control:focus {
    background-color: var(--input-bg) !important;
    border-color: var(--brand-color) !important;
    color: var(--input-text) !important;
}

[data-theme="dark"] .input-group-text {
    background-color: var(--input-bg) !important;
    border-color: var(--input-border) !important;
    color: var(--input-text) !important;
}

[data-theme="dark"] .form-check-input {
    background-color: var(--input-bg) !important;
    border-color: var(--input-border) !important;
}

[data-theme="dark"] .form-check-input:checked {
    background-color: var(--brand-color) !important;
    border-color: var(--brand-color) !important;
}

/* Dark mode button styling */
[data-theme="dark"] .btn-outline-secondary {
    color: var(--text-color);
    border-color: var(--input-border);
}

[data-theme="dark"] .btn-outline-secondary:hover {
    background-color: var(--input-bg);
    color: var(--text-color);
    border-color: var(--input-border);
}

/* Dark mode card styling */
[data-theme="dark"] .card {
    background-color: var(--card-bg) !important;
    border-color: var(--input-border) !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] .card-body {
    background-color: var(--card-bg) !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] .card-title {
    color: var(--brand-color) !important;
}

[data-theme="dark"] .card-text {
    color: var(--text-color) !important;
}

/* Dark mode list-group styling */
[data-theme="dark"] .list-group-item {
    background-color: var(--card-bg) !important;
    border-color: var(--input-border) !important;
    color: var(--text-color) !important;
}

[data-theme="dark"] .list-group-item.bg-transparent {
    background-color: transparent !important;
}

[data-theme="dark"] .list-group-item strong,
[data-theme="dark"] .list-group-item .fw-bold {
    color: var(--text-color) !important;
}

[data-theme="dark"] .list-group-item .text-primary {
    color: var(--brand-color) !important;
}

[data-theme="dark"] .list-group-item .text-success {
    color: #28a745 !important;
}

/* Dark mode shadow styling */
[data-theme="dark"] .shadow-sm {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.5) !important;
}

[data-theme="dark"] .shadow {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.5) !important;
}

/* Dark mode Bootstrap utility overrides */
[data-theme="dark"] .bg-light {
    background-color: var(--secondary-bg-color) !important;
}

[data-theme="dark"] .bg-white {
    background-color: var(--card-bg) !important;
}

[data-theme="dark"] .text-muted {
    color: #999 !important;
}

/* Dark mode dropdown menu styling */
[data-theme="dark"] .dropdown-menu {
    background-color: var(--card-bg) !important;
    border-color: var(--input-border) !important;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .dropdown-item {
    color: var(--text-color) !important;
}

[data-theme="dark"] .dropdown-item:hover,
[data-theme="dark"] .dropdown-item:focus {
    background-color: var(--secondary-bg-color) !important;
    color: var(--text-color) !important;
}

/* Consistent list-group-item text spacing */
.list-group-item.d-flex {
    gap: 0;
}

.list-group-item.d-flex>i {
    flex-shrink: 0;
}

.list-group-item strong {
    white-space: nowrap;
}

html {
    overflow-y: scroll;
}

html,
body,
.center_container {
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    color: var(--text-color);
}

body {
    padding-top: 4em;
}

.brand_background {
    background: var(--brand-color);
}

.brand_color {
    color: var(--brand-color);
}

.center_container {
    display: flex;
}

.logo_container {
    text-align: center;
}

.main_logo {
    width: 46rem;
    max-width: 85%;
    margin: 2em;
    /*margin-top: -10rem;*/
}

.title {
    font-family: "Montserrat", sans-serif;
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* Index buttons  */

.buttons {
    font-size: 2.5em;
    margin-top: 1em;
}

.buttons a {
    color: var(--footer-text);
    text-decoration: none;
    text-shadow: #000000 0px 0px 8px;
    display: block;
    width: 100%;
    height: 100%;
    padding: 1em;
    margin: 10px;
    border-radius: 20px;
    clip-path: inset(0px 0px 0px 0px round 20px);
}

.buttons a::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    inset: 0;
    background: #021523;
    z-index: -1;
    background-size: cover;
    transition: all 400ms ease-out;
}

.buttons a:hover::before {
    transform: scale(1.2);
    transition: all 200ms ease-out;
}

.buttons a.first::before {
    background-image: linear-gradient(to bottom, rgba(255, 255, 255, 0.1), hsla(0, 0%, 20%, 0.5)), url(../images/md/background_01.png);
}

.buttons a.first:hover::before {
    background-image: linear-gradient(to bottom, rgba(255, 255, 255, 0.1), hsla(0, 0%, 20%, 0.9)), url(../images/md/background_01.png);
}

.buttons a.second::before {
    background-image: linear-gradient(to bottom, rgba(255, 255, 255, 0.1), hsla(0, 0%, 20%, 0.5)), url(../images/md/background_05.png);
}

.buttons a.second:hover::before {
    background-image: linear-gradient(to bottom, rgba(255, 255, 255, 0.1), hsla(0, 0%, 20%, 0.9)), url(../images/md/background_05.png);
}

.flag {
    height: 15px;
}

.flag_lang {
    width: 30px;
}

.loading {
    width: 200px;
    height: 53px;
    display: inline-block;
    border: #cccccccc 1px solid;
    background-repeat: no-repeat;
    background-size: contain;
    background-image: url('../images/loading.gif');
    background-position: center;
}

.footer {
    margin-top: 2rem;
    height: 5rem;
}

.lnk_social {
    position: relative;
    accent-color: #fff;
    width: 25px;
    height: 25px;
    display: inline-block;
    text-align: center;
    vertical-align: middle;
}

.lnk_social::before {
    content: '';
    position: absolute;
    width: 25px;
    height: 25px;
    inset: 0;
    background-color: var(--footer-text);
    opacity: 0;
    transform: scale(0);
    border-radius: 50%;
    transition: transform opacity;
    transition-duration: 0.2s;
}

.lnk_social:hover::before {
    transform: scale(1.5);
    opacity: 0.3;
    transition: transform opacity;
    transition-duration: 0.2s;
}

.num_alpha {
    counter-reset: ol-index;
    counter-reset: li-index;
}

.num_alpha ol {
    list-style: none;
    counter-increment: ol-index;
    counter-reset: li-index;
}

.num_alpha ol li {
    counter-increment: li-index;
}

.num_alpha ol li::before {
    content: "4" counter(li-index, lower-alpha) ". ";
}

.caltec {
    font-family: "Lato", sans-serif;
    font-size: 1.2em;
    min-width: 400px;
    padding-top: 2em;
}

.caltec-font {
    font-family: "Lato", sans-serif;
}

.caltec h1 {
    /*font-style: italic;*/
    font-weight: bold;
    color: var(--brand-color);
    margin-top: 0.8em;
    margin-bottom: 0.5em;
}

.caltec h2 {
    /*font-style: italic;*/
    color: var(--brand-color);
    font-weight: bold;
    margin-top: 2em;
    margin-bottom: 0.7em;
}

.caltec h4 {
    margin-top: -1em;
    color: var(--brand-color);
}

.caltec p {
    text-align: justify;
    /*text-indent: 2em;*/
}

.caltec .images {
    width: 100%;
    margin-top: 0.5em;
    margin-bottom: 0.5em;
    outline: 2px solid var(--brand-color);
    border: 2px solid var(--footer-text);
    background-color: var(--footer-text);
}

.caltec .noborder {
    outline: 0;
    border: 0;
}

.caltec .emp {
    font-weight: 700;
    color: var(--brand-color);
}

.text-left {
    text-align: left;
}

.columns {
    column-count: auto;
}

.nowrap {
    white-space: nowrap;
}

.vam {
    vertical-align: middle;
}

.highlight-dark-text,
a.highlight-dark-text:link,
a.highlight-dark-text:visited {
    color: #062280;
}

.highlight-dark-text {
    color: var(--brand-dark-color);
}

a.highlight-dark-text:hover,
a.highlight-dark-text:active {
    color: var(--brand-dark-color);
}

/* Dark mode: ensure highlight-dark-text links use the lighter color */
[data-theme="dark"] a.highlight-dark-text:link,
[data-theme="dark"] a.highlight-dark-text:visited,
[data-theme="dark"] a.highlight-dark-text:hover,
[data-theme="dark"] a.highlight-dark-text:active,
[data-theme="dark"] .highlight-dark-text {
    color: var(--brand-dark-color) !important;
}

.highlight-dark-bg {
    background-color: var(--brand-dark-color);
}

/*072B87*/

/*------------------------------------
- CALL TO ACTION
------------------------------------*/

.cta-section {
    background: linear-gradient(135deg, #062280 0%, #1478C7 100%);
}

.cta-section .btn-light {
    color: var(--brand-dark-color);
}

.cta-section .btn-outline-light:hover {
    color: var(--brand-dark-color);
}

.cta-section .card {
    border-radius: 15px;
}

.cta-section .form-control {
    border: none;
    border-radius: 10px;
    background-color: var(--secondary-bg-color);
}

.cta-section .btn-primary {
    background-color: var(--brand-dark-color);
    border-color: var(--brand-dark-color);
}

.cta-section .btn-primary:hover {
    background-color: #062280;
    border-color: #062280;
}

.box {
    transition: box-shadow .3s;
}

.box:hover {
    box-shadow: 0 0 11px rgba(33, 33, 33, .3);
}

@media (min-width: 992px) {
    .columns {
        column-count: 2;
        column-gap: 3em;
    }
}

/*------------------------------------
- CAROUSEL
------------------------------------*/
.carousel-indicators {
    margin-bottom: 0.5rem;
}

.carousel-control-next,
.carousel-control-prev {
    width: 2rem;
    margin: 1rem;
}

.carousel-control-next-icon {
    width: 5rem;
}

/*------------------------------------
- NAVBAR
------------------------------------*/

.navbar-custom {
    background-color: var(--nav-bg) !important;
}

/*------------------------------------
- COLOR primary
------------------------------------*/
.alert-primary {
    color: #083457;
    background-color: #afd7f7;
    border-color: #9dcef5;
}

.alert-primary hr {
    border-top-color: #86c2f2;
}

.alert-primary .alert-link {
    color: #041829;
}

.badge-primary {
    color: var(--footer-text);
    background-color: var(--brand-color);
}

.badge-primary[href]:hover,
.badge-primary[href]:focus {
    color: var(--footer-text);
    background-color: #0f5c98;
}

.bg-primary {
    /* background-color: #1478C7 !important; */
    background-color: var(--brand-color) !important;
}

a.bg-primary:hover,
a.bg-primary:focus,
button.bg-primary:hover,
button.bg-primary:focus {
    background-color: #0f5c98 !important;
}

.border-primary {
    /* border-color: #1478C7 !important; */
    border-color: var(--brand-color) !important;
}

.btn-primary {
    color: var(--footer-text);
    background-color: var(--brand-color);
    border-color: var(--brand-color);
}

.btn-primary:hover {
    color: var(--footer-text);
    background-color: #1064a6;
    border-color: #0f5c98;
}

.btn-primary:focus,
.btn-primary.focus {
    box-shadow: 0 0 0 0.2rem rgba(20, 120, 199, 0.5);
}

.btn-primary.disabled,
.btn-primary:disabled {
    color: var(--footer-text);
    background-color: #1478C7;
    border-color: #1478C7;
}

.btn-primary:not(:disabled):not(.disabled):active,
.btn-primary:not(:disabled):not(.disabled).active,
.show>.btn-primary.dropdown-toggle {
    color: var(--footer-text);
    background-color: #0f5c98;
    border-color: #0d538a;
}

.btn-primary:not(:disabled):not(.disabled):active:focus,
.btn-primary:not(:disabled):not(.disabled).active:focus,
.show>.btn-primary.dropdown-toggle:focus {
    box-shadow: 0 0 0 0.2rem rgba(20, 120, 199, 0.5);
}

.btn-outline-primary {
    color: var(--brand-color);
    background-color: transparent;
    border-color: var(--brand-color) !important;
}

.btn-outline-primary:hover {
    color: var(--footer-text);
    background-color: #1478C7;
    border-color: #1478C7;
}

.btn-outline-primary:focus,
.btn-outline-primary.focus {
    box-shadow: 0 0 0 0.2rem rgba(20, 120, 199, 0.5);
}

.btn-outline-primary.disabled,
.btn-outline-primary:disabled {
    color: var(--brand-color);
    background-color: transparent;
}

.btn-outline-primary:not(:disabled):not(.disabled):active,
.btn-outline-primary:not(:disabled):not(.disabled).active,
.show>.btn-outline-primary.dropdown-toggle {
    color: var(--footer-text);
    background-color: #1478C7;
    border-color: #1478C7;
}

.btn-outline-primary:not(:disabled):not(.disabled):active:focus,
.btn-outline-primary:not(:disabled):not(.disabled).active:focus,
.show>.btn-outline-primary.dropdown-toggle:focus {
    box-shadow: 0 0 0 0.2rem rgba(20, 120, 199, 0.5);
}

.list-group-item-primary {
    color: #083457;
    background-color: #9dcef5;
}

.list-group-item-primary.list-group-item-action:hover,
.list-group-item-primary.list-group-item-action:focus {
    color: #083457;
    background-color: #86c2f2;
}

.list-group-item-primary.list-group-item-action.active {
    color: var(--footer-text);
    background-color: #083457;
    border-color: #083457;
}

.table-primary,
.table-primary>th,
.table-primary>td {
    background-color: #9dcef5;
}

.table-hover .table-primary:hover {
    background-color: #86c2f2;
}

.table-hover .table-primary:hover>td,
.table-hover .table-primary:hover>th {
    background-color: #86c2f2;
}

.text-primary {
    /* color: #1478C7 !important; */
    color: var(--brand-color) !important;
}

a.text-primary:hover,
a.text-primary:focus {
    color: #0f5c98 !important;
}

.float-whatsapp {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 20px;
    right: 20px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 3px #999;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.float-whatsapp:hover {
    background-color: #128c7e;
    color: #FFF;
    transform: scale(1.1);
}

.float-whatsapp-icon {
    margin-top: 2px;
    /* slight visual adjustment */
}

/*------------------------------------
- MODERN UTILITY CLASSES
------------------------------------*/

/* Glassmorphism Cards */
.card-glass {
    background: var(--surface-glass);
    -webkit-backdrop-filter: var(--backdrop-blur);
    backdrop-filter: var(--backdrop-blur);
    border: 1px solid var(--surface-glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--surface-glass-shadow);
    transition: var(--transition-smooth);
}

.card-glass:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

/* Modern Card Styling */
.card-modern {
    background: var(--card-bg);
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
    overflow: hidden;
}

.card-modern:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-8px);
}

.card-modern .card-img-top {
    transition: var(--transition-smooth);
}

.card-modern:hover .card-img-top {
    transform: scale(1.05);
}

.card-modern .card-body {
    padding: 1.5rem;
}

/* Hover Lift Animation */
.hover-lift {
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

/* Hover Glow Effect */
.hover-glow {
    transition: var(--transition-smooth);
}

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(var(--brand-color-rgb), 0.4);
}

/*------------------------------------
- CSS CONTAINER QUERIES
------------------------------------*/

/* Define container for cards grid */
.card-container {
    container-type: inline-size;
    container-name: card-grid;
}

/* Container query responsive cards */
@container card-grid (max-width: 400px) {
    .card-modern .card-body {
        padding: 1rem;
    }

    .card-modern .card-title {
        font-size: 1rem;
    }

    .card-modern .card-text {
        font-size: 0.875rem;
    }
}

@container card-grid (min-width: 401px) and (max-width: 600px) {
    .card-modern .card-body {
        padding: 1.25rem;
    }

    .card-modern .card-title {
        font-size: 1.125rem;
    }
}

@container card-grid (min-width: 601px) {
    .card-modern .card-body {
        padding: 1.5rem;
    }

    .card-modern .card-title {
        font-size: 1.25rem;
    }
}

/* Feature cards container support */
.feature-container {
    container-type: inline-size;
    container-name: feature;
}

@container feature (max-width: 300px) {
    .feature-icon {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
}

@container feature (min-width: 301px) {
    .feature-icon {
        width: 70px;
        height: 70px;
        font-size: 1.75rem;
    }
}

/*------------------------------------
- GRADIENT TEXT & BACKGROUNDS
------------------------------------*/

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-bg {
    background: var(--gradient-primary);
}

.gradient-bg-hero {
    background: var(--gradient-hero);
}

/*------------------------------------
- MODERN NAVBAR
------------------------------------*/

.navbar-modern {
    background: var(--nav-bg);
    -webkit-backdrop-filter: var(--backdrop-blur);
    backdrop-filter: var(--backdrop-blur);
    transition: var(--transition-smooth);
    border-bottom: 1px solid var(--surface-glass-border);
}

.navbar-modern .navbar-brand {
    margin-left: 1.5rem;
}

.navbar-modern.scrolled {
    background: var(--nav-bg);
    box-shadow: var(--shadow-md);
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.navbar-modern .nav-link {
    position: relative;
    transition: var(--transition-fast);
}

.navbar-modern .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-smooth);
    transform: translateX(-50%);
}

.navbar-modern .nav-link:hover::after,
.navbar-modern .nav-link.active::after {
    width: 80%;
}

/*------------------------------------
- MODERN HERO SECTION
------------------------------------*/

.hero-modern {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(6, 34, 128, 0.85) 0%, rgba(20, 120, 199, 0.7) 100%);
    z-index: 1;
}

.hero-modern .hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    opacity: 0.9;
    line-height: 1.6;
}

/*------------------------------------
- MODERN BUTTONS
------------------------------------*/

.btn-modern {
    padding: 0.875rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    letter-spacing: 0.025em;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.btn-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-smooth);
}

.btn-modern:hover::before {
    left: 100%;
}

.btn-gradient {
    background: var(--gradient-primary);
    border: none;
    color: #fff;
}

.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: #fff;
}

.btn-outline-modern {
    background: transparent;
    border: 2px solid var(--brand-color);
    color: var(--brand-color);
}

.btn-outline-modern:hover {
    background: var(--brand-color);
    color: #fff;
    transform: translateY(-2px);
}

/*------------------------------------
- FEATURE CARDS
------------------------------------*/

.feature-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.feature-card:hover {
    border-color: var(--brand-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: #fff;
    transition: var(--transition-bounce);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

/*------------------------------------
- SCROLL ANIMATIONS
------------------------------------*/

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Stagger animation delay */
.stagger-1 {
    transition-delay: 0.1s;
}

.stagger-2 {
    transition-delay: 0.2s;
}

.stagger-3 {
    transition-delay: 0.3s;
}

.stagger-4 {
    transition-delay: 0.4s;
}

/*------------------------------------
- MODERN FOOTER
------------------------------------*/

.footer-modern {
    background: var(--gradient-cta);
    position: relative;
}

.footer-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--brand-light-color), var(--brand-color), var(--brand-dark-color));
}

.footer-link {
    color: var(--footer-text);
    text-decoration: none;
    transition: var(--transition-fast);
    position: relative;
}

.footer-link:hover {
    color: #fff;
    padding-left: 8px;
}

/*------------------------------------
- PULSE ANIMATION (WhatsApp)
------------------------------------*/

@keyframes pulse-ring {
    0% {
        transform: scale(0.8);
        opacity: 1;
    }

    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

.float-whatsapp::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: #25d366;
    animation: pulse-ring 1.5s ease-out infinite;
    z-index: -1;
}

/*------------------------------------
- ENHANCED CTA SECTION
------------------------------------*/

.cta-section {
    background: var(--gradient-cta);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

.cta-section .card {
    border-radius: var(--radius-xl);
    overflow: hidden;
}

/*------------------------------------
- RESPONSIVE ADJUSTMENTS
------------------------------------*/

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .feature-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

    .card-modern:hover {
        transform: none;
    }

    .hover-lift:hover {
        transform: none;
    }
}

/*------------------------------------
- LOADING STATES
------------------------------------*/

/* Skeleton Loading Animation */
@keyframes skeleton-shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

.skeleton {
    background: linear-gradient(90deg,
            var(--secondary-bg-color) 25%,
            rgba(var(--brand-color-rgb), 0.1) 50%,
            var(--secondary-bg-color) 75%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
    border-radius: var(--radius-sm);
}

.skeleton-text {
    height: 1em;
    margin-bottom: 0.5em;
}

.skeleton-text-sm {
    height: 0.8em;
    width: 60%;
}

.skeleton-title {
    height: 1.5em;
    margin-bottom: 0.75em;
    width: 70%;
}

.skeleton-card {
    height: 200px;
    border-radius: var(--radius-md);
}

.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

.skeleton-image {
    width: 100%;
    height: 180px;
    border-radius: var(--radius-md);
}

/* Spinner Loading */
@keyframes spinner-rotate {
    to {
        transform: rotate(360deg);
    }
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--secondary-bg-color);
    border-top-color: var(--brand-color);
    border-radius: 50%;
    animation: spinner-rotate 0.8s linear infinite;
}

.spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.spinner-lg {
    width: 60px;
    height: 60px;
    border-width: 4px;
}

/* Pulse Loading */
@keyframes pulse-loading {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.4;
    }
}

.loading-pulse {
    animation: pulse-loading 1.5s ease-in-out infinite;
}

/* Button Loading State */
.btn-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spinner-rotate 0.8s linear infinite;
    opacity: 1;
}

.btn-loading::before {
    content: '';
    position: absolute;
    inset: 0;
    background: inherit;
    border-radius: inherit;
}

/* Content Loading Overlay */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(var(--brand-color-rgb), 0.1);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-smooth), visibility var(--transition-smooth);
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loading-overlay .spinner {
    width: 60px;
    height: 60px;
    border-width: 4px;
}

/* Card Loading State */
.card-loading {
    position: relative;
    overflow: hidden;
}

.card-loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--surface-glass);
    -webkit-backdrop-filter: var(--backdrop-blur);
    backdrop-filter: var(--backdrop-blur);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Page Transition Loading */
.page-loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient-primary);
    z-index: 10002;
    transition: width 0.3s ease;
}

.page-loading.active {
    animation: page-load-bar 1.5s ease infinite;
}

@keyframes page-load-bar {
    0% {
        width: 0;
        left: 0;
    }

    50% {
        width: 70%;
        left: 0;
    }

    100% {
        width: 100%;
        left: 100%;
    }
}

/* Dark mode loading states */
[data-theme="dark"] .skeleton {
    background: linear-gradient(90deg,
            var(--secondary-bg-color) 25%,
            rgba(76, 163, 232, 0.15) 50%,
            var(--secondary-bg-color) 75%);
    background-size: 200% 100%;
}

[data-theme="dark"] .loading-overlay {
    background: rgba(13, 13, 13, 0.7);
}

[data-theme="dark"] .spinner {
    border-color: var(--secondary-bg-color);
    border-top-color: var(--brand-color);
}