/* 
   XXVI Congreso Argentino de Herpetología 
   Design Philosophy: "Academic Elite & Natural Heritage"
   Version: 4.1 - Enhanced Interactive
*/

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;1,400&family=Inter:wght@300;400;500;600&family=Montserrat:wght@300;400;600;700&display=swap');

:root {
    /* Sophisticated Color Palette */
    --clr-primary: #0F1F1C;
    /* Deep Forest Obsidian */
    --clr-secondary: #2D433D;
    /* Midnight Sage */
    --clr-accent: #C5A059;
    /* Burnished Gold */
    --clr-accent-soft: rgba(197, 160, 89, 0.1);
    --clr-text: #2C3332;
    /* Dark Slate */
    --clr-text-muted: #5C6664;
    /* Cool Grey */
    --clr-bg-light: #F9F9F7;
    /* Off-White Bone */
    --clr-bg-white: #FFFFFF;
    --clr-glass: rgba(255, 255, 255, 0.85);

    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    --font-accent: 'Montserrat', sans-serif;

    /* Spacing & Borders */
    --container-width: 1200px;
    --section-padding: 50px;
    --border-radius: 2px;
    --transition: all 0.5s cubic-bezier(0.19, 1, 0.22, 1);
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.05);
    --shadow-premium: 0 20px 50px rgba(15, 31, 28, 0.1);
}

/* Base reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--clr-text);
    background-color: var(--clr-bg-light);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

/* Improved Multi-language System */
body [lang] {
    display: none;
}

body.lang-es [lang="es"],
body.lang-en [lang="en"],
body.lang-pt [lang="pt"] {
    display: contents !important;
    /* display: contents makes the span act like it's not there for layout, preserving parent layout */
}

/* Fallback for elements that shouldn't be contents (rare cases) */
body.lang-es div[lang="es"],
body.lang-en div[lang="en"],
body.lang-pt div[lang="pt"],
body.lang-es p[lang="es"],
body.lang-en p[lang="en"],
body.lang-pt p[lang="pt"] {
    display: block !important;
}

body.lang-es span[lang="es"],
body.lang-en span[lang="en"],
body.lang-pt span[lang="pt"] {
    display: inline !important;
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: 12px;
    margin-left: 25px;
    align-items: center;
    border-left: 1px solid rgba(255, 255, 255, 0.2);
    padding-left: 20px;
}

.lang-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px;
    border-radius: 6px;
    width: 40px;
    height: 32px;
    overflow: hidden;
}

.lang-btn.active {
    background: var(--clr-accent-soft);
    border-color: var(--clr-accent);
    box-shadow: 0 4px 12px rgba(197, 160, 89, 0.3);
}

.lang-btn img {
    width: 24px;
    height: auto;
    filter: saturate(0.8) brightness(0.9);
    transition: transform 0.3s ease;
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--clr-accent);
    transform: translateY(-2px);
    opacity: 1;
}

.lang-btn:hover img {
    filter: saturate(1) brightness(1.1);
    transform: scale(1.1);
}

.lang-btn.active img {
    filter: saturate(1.2) brightness(1);
}

/* --- Global Elements & Typography --- */
h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    color: var(--clr-primary);
    line-height: 1.2;
}

p {
    margin-bottom: 1.5rem;
}

.caps-accent {
    font-family: var(--font-accent);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-size: 0.85rem;
    color: var(--clr-accent);
    font-weight: 600;
}

.split-line {
    width: 80px;
    height: 1px;
    background: var(--clr-accent);
    margin: 1rem 0;
}

.center-line {
    margin: 1rem auto;
}

/* --- Navigation --- */
.nav-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid transparent;
}

.nav-header.scrolled {
    background: var(--clr-bg-white);
    border-bottom-color: rgba(0, 0, 0, 0.05);
    padding: 10px 0;
    box-shadow: var(--shadow-soft);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 12px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--clr-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    line-height: 0.9;
}

.nav-brand .brand-title {
    color: var(--clr-accent);
    font-size: 0.6rem;
    font-family: var(--font-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: block;
    line-height: 1.1;
    font-weight: 600;
}

.nav-brand span {
    color: var(--clr-accent);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 20px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--clr-text);
    font-family: var(--font-accent);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--clr-accent);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--clr-accent);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-cta {
    background: var(--clr-primary);
    color: #fff !important;
    padding: 8px 20px;
    border-radius: 0;
    transition: var(--transition);
}

.nav-cta:hover {
    background: var(--clr-accent);
    transform: translateY(-2px);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--clr-primary);
}

/* --- Hero Section --- */
.hero {
    min-height: auto;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    background-color: var(--clr-bg-light);
    position: relative;
    overflow: hidden;
    padding-top: 120px;
    padding-bottom: 40px;
}

/* Subtle architectural pattern in background */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.03;
    background-image: radial-gradient(var(--clr-primary) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: 1;
}

.hero-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 40px;
}

.hero-pretitle {
    margin-bottom: 2rem;
    display: block;
}

.hero-logo {
    max-width: 600px;
    width: 100%;
    margin-bottom: 1rem;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.1));
}

.hero-meta {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.meta-item {
    text-align: left;
    border-left: 1px solid var(--clr-accent);
    padding-left: 20px;
}

.meta-val {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
}

.meta-label {
    display: block;
    font-size: 0.75rem;
    color: var(--clr-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Hero Animal Layers - More refined */
.hero-animal {
    position: absolute;
    z-index: 1;
    opacity: 0.05;
    pointer-events: none;
    filter: grayscale(100%);
    transition: opacity 1s ease;
}

.hero-animal.snake {
    bottom: -5%;
    right: -5%;
    width: 40%;
    transform: rotate(-5deg);
}

.hero-animal.frog {
    top: 15%;
    left: -5%;
    width: 25%;
    transform: rotate(15deg);
}

.hero-animal.lizard {
    top: 50%;
    right: -10%;
    width: 30%;
    transform: translateY(-50%) rotate(-25deg);
}

/* Scroll Pointer */
.scroll-hint {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    opacity: 0.6;
}

.scroll-hint span {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.scroll-hint .line {
    width: 1px;
    height: 40px;
    background: var(--clr-primary);
    position: relative;
    overflow: hidden;
}

.scroll-hint .line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: var(--clr-accent);
    animation: scroll-line 2s infinite cubic-bezier(0.19, 1, 0.22, 1);
}

@keyframes scroll-line {
    0% {
        transform: translateY(-100%);
    }

    100% {
        transform: translateY(200%);
    }
}

/* --- Sections --- */
.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 40px;
}

.section-title {
    margin-bottom: 2rem;
}

.section-title h2 {
    font-size: 3rem;
    margin-top: 0.5rem;
}

/* Presentation Section */
.presentation {
    background: var(--clr-bg-white);
}

.pres-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.pres-content h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.highlight-text {
    font-size: 1.25rem;
    color: var(--clr-secondary);
    font-weight: 300;
    line-height: 1.6;
    border-left: 2px solid var(--clr-accent);
    padding-left: 20px;
    margin-bottom: 1.5rem;
}

/* Objectives List */
.objectives-list {
    margin-top: 3rem;
}

.objectives-list h4 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--clr-primary);
}

.obj-item {
    display: flex;
    gap: 20px;
    margin-bottom: 1.25rem;
    align-items: flex-start;
}

.obj-item i {
    color: var(--clr-accent);
    font-size: 1.1rem;
    margin-top: 5px;
}

.obj-item p {
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.5;
}

.obj-item strong {
    color: var(--clr-primary);
}

/* Committee Layout Grid */
.committees-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.committees-container {
    background: var(--clr-bg-light);
    border-top: 4px solid var(--clr-primary);
    padding: 35px;
    box-shadow: var(--shadow-soft);
    border-radius: 8px;
}

.committees-container h4 {
    margin-bottom: 25px;
    font-size: 1.1rem;
    text-align: center;
    border-bottom: 2px solid var(--clr-accent-soft);
    padding-bottom: 15px;
    color: var(--clr-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.committee-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px 20px;
}

.committee-list.organizing-list {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 1024px) {
    .committee-list, 
    .committee-list.organizing-list {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .committee-list,
    .committee-list.organizing-list {
        grid-template-columns: 1fr;
    }
}

.committee-item {
    font-size: 0.9rem;
    color: var(--clr-secondary);
    line-height: 1.4;
    padding: 5px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    font-weight: 500;
}

@media (max-width: 600px) {
    .committee-list {
        grid-template-columns: 1fr;
    }
}

/* Ejes Section - NEW VISUAL STYLE */
.ejes {
    background: var(--clr-primary);
    color: #fff;
    overflow: hidden;
}

.ejes .section-title h2 {
    color: #fff;
}

.ejes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    padding: 20px 0;
}

.eje-card-premium {
    height: 160px;
    /* Much smaller height */
    background: var(--clr-secondary);
    position: relative;
    padding: 25px;
    /* Reduced padding */
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.05);
    overflow: hidden;
    cursor: pointer;
}

.eje-card-premium::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(0deg, var(--clr-primary) 0%, transparent 100%);
    z-index: 1;
    opacity: 0.8;
}

.eje-card-premium .eje-num {
    position: absolute;
    top: 20px;
    right: 20px;
    font-family: var(--font-heading);
    font-size: 1.8rem;
    /* Smalller num */
    font-weight: 700;
    color: rgba(197, 160, 89, 0.05);
    z-index: 0;
    transition: var(--transition);
}

.eje-card-premium:hover {
    transform: translateY(-10px);
    border-color: var(--clr-accent);
    background: #1a2c28;
}

.eje-card-premium:hover .eje-num {
    color: rgba(197, 160, 89, 0.15);
}

.eje-card-content {
    position: relative;
    z-index: 2;
}

.eje-icon-box {
    width: 35px;
    /* Smaller icon box */
    height: 35px;
    background: var(--clr-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    font-size: 1.2rem;
    color: var(--clr-primary);
    transition: var(--transition);
}

.eje-card-premium:hover .eje-icon-box {
    transform: rotateY(180deg);
}

.eje-card-premium h4 {
    color: #fff;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.eje-card-premium p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.eje-card-premium:hover p {
    opacity: 1;
    transform: translateY(0);
}

/* Programa Section */
/* Agenda Schedule NEW STYLE */
.agenda-day {
    margin-bottom: 4rem;
}

.agenda-day h3 {
    font-size: 1.5rem;
    color: var(--clr-accent);
    margin-bottom: 2rem;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--clr-accent-soft);
}

.agenda-item {
    display: grid;
    grid-template-columns: 120px 1fr 250px;
    gap: 30px;
    padding: 25px;
    background: var(--clr-bg-light);
    margin-bottom: 15px;
    border-left: 4px solid var(--clr-primary);
    transition: var(--transition);
}

.agenda-item:hover {
    transform: translateX(10px);
    background: var(--clr-bg-white);
    box-shadow: var(--shadow-soft);
}

.agenda-time {
    font-family: var(--font-accent);
    font-weight: 700;
    color: var(--clr-secondary);
    display: flex;
    flex-direction: column;
}

.agenda-time .time-val {
    font-size: 1.2rem;
}

.agenda-time .time-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    color: var(--clr-accent);
}

.agenda-content h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.agenda-content p {
    font-size: 0.9rem;
    color: var(--clr-text-muted);
    margin: 0;
}

.agenda-venue {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--clr-secondary);
    font-weight: 600;
}

.agenda-venue a {
    color: inherit;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: rgba(197, 160, 89, 0.05);
    border-radius: 6px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.agenda-venue a:hover {
    color: var(--clr-accent);
    background: rgba(197, 160, 89, 0.1);
    border-color: var(--clr-accent-soft);
    transform: translateX(5px);
}

.agenda-venue i {
    color: var(--clr-accent);
    font-size: 1rem;
}

@media (max-width: 768px) {
    .agenda-item {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}

/* Sede & Map Section */
.map-section {
    padding: 0;
    background: var(--clr-bg-white);
}

.map-container {
    height: 450px;
    width: 100%;
    filter: saturate(0.5);
    transition: var(--transition);
    border: none;
}

.map-container:hover {
    filter: saturate(1);
}

.venue-content {
    margin-bottom: 100px;
    /* More space for the cards below */
}

.poi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    /* Slightly narrower cards */
    gap: 20px;
    margin-top: 0;
    /* REMOVED NEGATIVE MARGIN */
    position: relative;
    z-index: 5;
    padding: 0 40px 100px;
}

.poi-card {
    background: var(--clr-bg-white);
    padding: 30px;
    box-shadow: var(--shadow-premium);
    border-bottom: 3px solid var(--clr-accent);
    transition: var(--transition);
}

.poi-card:hover {
    transform: translateY(-5px);
}

.poi-card i {
    color: var(--clr-accent);
    margin-bottom: 15px;
    font-size: 1.5rem;
    display: block;
}

.poi-card h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.poi-card p {
    font-size: 0.85rem;
    color: var(--clr-text-muted);
    margin: 0;
}

/* Discoveries Section */
.discoveries {
    background: var(--clr-bg-white);
}

.species-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 40px;
    margin-top: 4rem;
}

.species-card {
    background: var(--clr-bg-light);
    border: 1px solid rgba(0, 0, 0, 0.05);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.species-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-premium);
    border-color: var(--clr-accent);
}

.species-img-placeholder {
    height: 200px;
    background: var(--clr-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.species-img-placeholder i {
    font-size: 4rem;
    color: rgba(197, 160, 89, 0.2);
}

.species-img-placeholder::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(197, 160, 89, 0.1) 0%, transparent 100%);
}

.species-info {
    padding: 30px;
}

.species-info h3 {
    font-size: 1.35rem;
    margin-bottom: 1rem;
    font-style: italic;
    color: var(--clr-primary);
}

.species-info p {
    font-size: 0.9rem;
    margin: 0;
    line-height: 1.6;
    color: var(--clr-text-muted);
}

.species-img {
    height: 220px;
    background-size: cover;
    background-position: center;
    position: relative;
    transition: var(--transition);
}

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

.species-img::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to top, rgba(15, 31, 28, 0.4), transparent);
}

/* Venue Highlight Box */
.venue-highlight {
    background: var(--clr-primary);
    color: #fff;
    padding: 60px;
    margin-top: 4rem;
    position: relative;
    border-left: 5px solid var(--clr-accent);
}

.venue-highlight h3 {
    color: var(--clr-accent);
    margin-bottom: 1.5rem;
    font-size: 2rem;
}

.venue-highlight p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin: 0;
    opacity: 0.9;
}

/* Registration Form */
.registration {
    background: var(--clr-bg-light);
}

.reg-card {
    background: var(--clr-bg-white);
    max-width: 800px;
    margin: 0 auto;
    padding: 60px;
    box-shadow: var(--shadow-premium);
    border-top: 5px solid var(--clr-accent);
}

/* Registration Banner */
.registration-banner {
    background: linear-gradient(rgba(15, 31, 28, 0.92), rgba(15, 31, 28, 0.92)), url('../img/01_Lagartija.png');
    background-size: 400px;
    background-position: right center;
    background-repeat: no-repeat;
    background-attachment: scroll;
    background-color: var(--clr-primary);
    padding: 80px 50px;
    border-radius: 4px;
    color: white;
    text-align: center;
    box-shadow: var(--shadow-premium);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(197, 160, 89, 0.2);
}

.banner-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    margin: 0 auto;
}

.banner-badge {
    display: inline-block;
    padding: 6px 20px;
    background: var(--clr-accent);
    color: var(--clr-primary);
    font-family: var(--font-accent);
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    border-radius: 50px;
    margin-bottom: 30px;
}

.banner-content h3 {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-style: italic;
    margin-bottom: 20px;
    color: #fff;
}

.banner-content p {
    font-size: 1.15rem;
    line-height: 1.8;
    margin-bottom: 40px;
    color: rgba(255, 255, 255, 0.8);
}

.banner-btn {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    background: var(--clr-accent);
    color: var(--clr-primary);
    padding: 20px 50px;
    font-family: var(--font-accent);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid var(--clr-accent);
}

.banner-btn i {
    transition: transform 0.3s ease;
}

.banner-btn:hover {
    background: transparent;
    color: var(--clr-accent);
    transform: translateY(-5px);
}

.banner-btn:hover i {
    transform: translateX(5px);
}

@media (max-width: 768px) {
    .registration-banner {
        padding: 60px 25px;
    }
    .banner-content h3 {
        font-size: 2rem;
    }
    .banner-content p {
        font-size: 1rem;
    }
    .banner-btn {
        width: 100%;
        justify-content: center;
        padding: 18px 20px;
    }
}

/* Footer */
.footer {
    background: var(--clr-primary);
    color: rgba(255, 255, 255, 0.6);
    padding: 60px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 30px;
}

.footer-brand h3 {
    color: #fff;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.footer-brand h3 span {
    color: var(--clr-accent);
}

.footer-links h4 {
    color: #fff;
    font-size: 1rem;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.footer-links ul {
    list-style: none;
}

/* Footer Logos */
.footer-logos {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-bottom: 50px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    align-items: center;
}

.logo-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 50px;
    flex-wrap: wrap;
}

.logo-row img {
    height: auto;
    object-fit: contain;
    transition: var(--transition);
}

/* Fila Inicial: Máxima Importancia (Equilibrados entre sí) */
.logo-row:nth-child(1) {
    gap: 60px;
    margin-bottom: 20px;
}

.logo-row:nth-child(1) img {
    max-height: 80px; 
    max-width: 260px;
}

/* Fila Secundaria: Menor importancia (Equilibrados entre sí) */
.logo-row:nth-child(2) {
    gap: 40px;
}

.logo-row:nth-child(2) img {
    max-height: 55px; 
    max-width: 200px;
    opacity: 0.85; /* Sutil reducción de peso visual */
}

/* Ajustes ópticos específicos para logos con proporciones extremas */
.logo-row:nth-child(1) img[src*="AHA"] {
    max-height: 95px; /* AHA suele verse pequeño por su detalle fino */
}

.logo-row:nth-child(2) img[src*="IUPA"] {
    max-height: 65px; /* Compensa la forma circular */
}

.logo-row img:hover {
    transform: translateY(-3px) scale(1.05);
    opacity: 1;
}

@media (max-width: 768px) {
    .logo-row:nth-child(1) img {
        max-height: 50px;
        max-width: 160px;
    }
    .logo-row:nth-child(2) img {
        max-height: 35px;
        max-width: 120px;
    }
    .logo-row {
        gap: 25px;
    }
}



.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--clr-accent);
}

.social-icons {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.social-icons a {
    color: #fff;
    font-size: 1.2rem;
    opacity: 0.6;
    transition: var(--transition);
}

.social-icons a:hover {
    opacity: 1;
    color: var(--clr-accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
}

/* Responsive */
/* Under Construction Style */
.under-construction {
    text-align: center;
    padding: 60px 20px;
    background: var(--clr-bg-light);
    border: 2px dashed var(--clr-accent-soft);
    color: var(--clr-text-muted);
}

.under-construction i {
    font-size: 3rem;
    color: var(--clr-accent);
    margin-bottom: 1.5rem;
}

.under-construction h3 {
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

@media (max-width: 1024px) {

    .pres-grid,
    .program-grid,
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .hero-meta {
        gap: 20px;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .ticker-wrap {
        height: 250px;
    }
}

/* Species Detail Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 31, 28, 0.9);
    backdrop-filter: blur(8px);
}

.modal-container {
    background: var(--clr-bg-white);
    width: 100%;
    max-width: 800px;
    position: relative;
    z-index: 10;
    border-radius: 4px;
    overflow: hidden;
    animation: modalScale 0.4s cubic-bezier(0.19, 1, 0.22, 1);
    box-shadow: var(--shadow-premium);
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

@keyframes modalScale {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--clr-primary);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: var(--transition);
    z-index: 30;
}

.modal-close:hover {
    background: var(--clr-accent);
    color: white;
}

.modal-content {
    overflow-y: auto;
}

.modal-header-img {
    height: 350px;
    background-size: cover;
    background-position: center;
}

.modal-header-text {
    padding: 40px 50px 10px;
}

.modal-header-text h2 {
    font-size: 2.5rem;
    font-style: italic;
    color: var(--clr-primary);
}

.modal-body {
    padding: 20px 50px 50px;
}

.modal-long-desc p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--clr-text);
}

.species-card.clickable {
    cursor: pointer;
}

@media (max-width: 768px) {
    .modal-header-img {
        height: 200px;
    }
    .modal-header-text {
        padding: 30px 25px 10px;
    }
    .modal-header-text h2 {
        font-size: 1.8rem;
    }
    .modal-body {
        padding: 10px 25px 30px;
    }
}