/*
  Theme: Consultoría - 5 Errores Clave (Dark Theme)
  Design System: Corporativo + Eco-minimalismo
  Color Scheme: Tetradic
  Animation Style: 3D-effects
  Fonts: Montserrat (Headings), Merriweather (Body)
*/

:root {
    /* Fonts */
    --font-primary: 'Montserrat', sans-serif;
    --font-secondary: 'Merriweather', serif;

    /* Dark Theme - Corporate Eco-Minimalist */
    --color-background-darkest: #101419; /* Near Black - Main BG, default section BG */
    --color-background-dark: #1A1D24;   /* Dark Gray Blue - Card BG, .dark-bg sections */
    --color-background-medium: #252A34; /* Medium Dark Gray Blue - Input fields, subtle elements */

    --color-text-primary: #E0E0E0;   /* Light Gray - Main text */
    --color-text-headings: #FFFFFF; /* White - Headings */
    --color-text-secondary: #B0B8C0; /* Lighter Gray Blue - Subtitles, secondary text */

    /* Tetradic Accents */
    --color-accent-primary: #00A99D;         /* Vibrant Teal - Main call to action, links */
    --color-accent-primary-rgb: 0, 169, 157; /* RGB for box-shadow */
    --color-accent-primary-darker: #007A70;  /* Darker Teal for hover */

    --color-accent-secondary: #3498DB;       /* Bright Blue - Secondary accents, info */
    --color-accent-secondary-darker: #2980B9;

    --color-accent-tertiary: #E67E22;        /* Carrot Orange - Highlights (use sparingly) */
    --color-accent-quaternary: #9B59B6;       /* Amethyst Purple - Unique elements */

    --color-border: #333944;       /* Subtle border color */
    --color-shadow: rgba(0, 0, 0, 0.3);
    --color-shadow-light: rgba(var(--color-accent-primary-rgb), 0.15); /* For subtle glow on dark elements */

    /* UI States */
    --color-success: #2ECC71; /* Emerald Green */
    --color-error: #E74C3C;   /* Alizarin Crimson */

    /* Spacing */
    --spacing-xs: 0.5rem;  /* 8px */
    --spacing-sm: 1rem;    /* 16px */
    --spacing-md: 1.5rem;  /* 24px */
    --spacing-lg: 2rem;    /* 32px */
    --spacing-xl: 3rem;    /* 48px */
    --spacing-xxl: 4rem;   /* 64px */

    /* Borders */
    --border-radius-sm: 5px;
    --border-radius-md: 10px;
    --border-radius-lg: 15px;

    /* Transitions */
    --transition-speed: 0.3s;
    --transition-timing: ease-in-out;

    /* Header & Footer */
    --header-height: 70px;
    --footer-min-height: 200px; /* Example, adjust as needed */
}

/* Global Styles & Resets */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px; /* Base font size */
}

body {
    font-family: var(--font-secondary);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-background-darkest);
    overflow-x: hidden; /* Prevent horizontal scroll */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.main-container {
    width: 100%;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    color: var(--color-text-headings);
    line-height: 1.3;
    font-weight: 700;
}

h1 { font-size: 2.8rem; margin-bottom: var(--spacing-md); }
h2 { font-size: 2.2rem; margin-bottom: var(--spacing-md); } /* Section titles */
h3 { font-size: 1.6rem; margin-bottom: var(--spacing-sm); } /* Card titles, sub-headings */
h4 { font-size: 1.3rem; margin-bottom: var(--spacing-xs); }

p {
    margin-bottom: var(--spacing-sm);
    max-width: 70ch; /* Improve readability */
}
.text-center p {
    margin-left: auto;
    margin-right: auto;
}

a {
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: color var(--transition-speed) var(--transition-timing);
}
a:hover {
    color: var(--color-accent-primary-darker);
}

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

/* Layout Utilities */
.container {
    width: 90%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
}

.section-padding {
    padding-top: var(--spacing-xxl);
    padding-bottom: var(--spacing-xxl);
}

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

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

/* Section Titles */
.section-title {
    margin-bottom: var(--spacing-sm);
    position: relative;
    padding-bottom: var(--spacing-sm);
    text-align: center;
}
.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background-color: var(--color-accent-primary);
    margin: var(--spacing-sm) auto 0;
    border-radius: 2px;
}
.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}


/* Buttons - Global */
.btn, button, input[type="submit"], input[type="button"] {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    text-align: center;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: background-color var(--transition-speed) var(--transition-timing),
                color var(--transition-speed) var(--transition-timing),
                transform var(--transition-speed) var(--transition-timing),
                box-shadow var(--transition-speed) var(--transition-timing);
    border: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-primary,
button[type="submit"] {
    background-color: var(--color-accent-primary);
    color: #000; /* Black text for good contrast on teal */
}
.btn-primary:hover,
button[type="submit"]:hover {
    background-color: var(--color-accent-primary-darker);
    color: #000;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 6px 15px rgba(var(--color-accent-primary-rgb), 0.3);
}

/* Header */
.site-header {
    background-color: rgba(var(--color-background-darkest-rgb, 16, 20, 25), 0.85); /* Use RGB for opacity */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 0 var(--spacing-sm);
    height: var(--header-height);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: background-color var(--transition-speed) var(--transition-timing), box-shadow var(--transition-speed) var(--transition-timing);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.site-header.scrolled { /* Add via JS on scroll */
    background-color: rgba(var(--color-background-darkest-rgb, 16, 20, 25), 0.95);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}
.logo {
    font-family: var(--font-primary);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-text-headings);
    text-decoration: none;
}
.logo span {
    color: var(--color-accent-primary);
}
.main-navigation .nav-list {
    list-style: none;
    display: flex;
    gap: var(--spacing-md);
}
.main-navigation .nav-list a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-family: var(--font-primary);
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    position: relative;
}
.main-navigation .nav-list a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent-primary);
    transition: width var(--transition-speed) var(--transition-timing);
}
.main-navigation .nav-list a:hover,
.main-navigation .nav-list a.active { /* Add .active class via JS */
    color: var(--color-text-headings);
}
.main-navigation .nav-list a:hover::after,
.main-navigation .nav-list a.active::after {
    width: 100%;
}

.menu-toggle {
    display: none; /* Hidden on desktop */
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
    z-index: 1001; /* Above nav list on mobile */
}
.hamburger {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-text-headings);
    position: relative;
    transition: background-color var(--transition-speed) var(--transition-timing);
}
.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--color-text-headings);
    transition: transform var(--transition-speed) var(--transition-timing), top var(--transition-speed) var(--transition-timing);
}
.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }

/* Mobile Menu Active States (toggled by JS) */
.menu-toggle.active .hamburger { background-color: transparent; }
.menu-toggle.active .hamburger::before { transform: rotate(45deg); top: 0; }
.menu-toggle.active .hamburger::after { transform: rotate(-45deg); top: 0; }


/* Hero Section */
.hero-section {
    min-height: 100vh; /* Full viewport height */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: var(--header-height); /* Account for fixed header */
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative; /* For pseudo-elements or absolute positioning inside */
}
.hero-content {
    max-width: 800px;
    position: relative; /* Ensure content is above gradient overlay */
    z-index: 2;
}
.hero-title {
    font-size: 3.5rem;
    color: var(--color-text-headings); /* Ensured white text by HTML style */
    margin-bottom: var(--spacing-md);
    text-shadow: 2px 2px 8px rgba(0,0,0,0.7);
}
.hero-subtitle {
    font-size: 1.3rem;
    color: var(--color-text-headings); /* Ensured white text by HTML style */
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
    text-shadow: 1px 1px 4px rgba(0,0,0,0.5);
}

/* Card Styles (Mistakes, Team, Portfolio) */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}
.card {
    background-color: var(--color-background-dark);
    border-radius: var(--border-radius-md);
    box-shadow: 0 5px 20px var(--color-shadow);
    transition: transform var(--transition-speed) var(--transition-timing), box-shadow var(--transition-speed) var(--transition-timing);
    display: flex;
    flex-direction: column;
    text-align: center;
    overflow: hidden;
}
.card:hover {
    transform: translateY(-8px) scale(1.02); /* More noticeable 3D lift */
    box-shadow: 0 12px 30px var(--color-shadow-light);
}
.card-image {
    width: 100%;
    height: 250px; /* As per HTML height attribute and requirement */
    overflow: hidden;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-background-medium); /* Placeholder if image fails */
}
.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s var(--transition-timing);
}
.card:hover .card-image img {
    transform: scale(1.08);
}
.card-content {
    padding: 0 var(--spacing-md) var(--spacing-md);
    flex-grow: 1;
}
.card-content h3 {
    color: var(--color-accent-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.4rem;
}
.card-content p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

/* Methodology Section - Timeline */
.timeline {
    position: relative;
    margin: var(--spacing-lg) auto;
    padding: var(--spacing-lg) 0;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background-color: var(--color-accent-primary);
    transform: translateX(-50%);
    border-radius: 2px;
}
.timeline-item {
    padding: var(--spacing-sm) var(--spacing-xl);
    position: relative;
    width: 50%;
    box-sizing: border-box;
    margin-bottom: var(--spacing-lg);
}
.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: calc(var(--spacing-xl) + 30px);
    text-align: right;
}
.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: calc(var(--spacing-xl) + 30px);
    text-align: left;
}
.timeline-item::after { /* Timeline dot */
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: var(--color-background-darkest);
    border: 4px solid var(--color-accent-primary);
    top: 1.5rem; /* Align with content start or middle */
    z-index: 1;
    transform: translateY(-50%);
}
.timeline-item:nth-child(odd)::after { right: -9px; }
.timeline-item:nth-child(even)::after { left: -9px; }

.timeline-content {
    padding: var(--spacing-md);
    background-color: var(--color-background-dark);
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 15px var(--color-shadow);
    position: relative;
}
.timeline-content h3 {
    color: var(--color-accent-secondary);
    margin-top: 0;
}

/* Team Section Carousel (Basic Structure for JS) */
.team-carousel {
    /* JS will handle layout, for now, ensure items are block */
}
.team-member .card-image {
    height: 300px; /* As per HTML */
}
.team-member .card-image img {
    border-radius: 50%; /* For profile pictures */
    width: 150px; /* Adjust for circular look */
    height: 150px;
    object-fit: cover;
    margin: var(--spacing-md) auto;
    border: 4px solid var(--color-accent-primary);
}
.team-member.card:hover .card-image img {
    transform: scale(1.1);
}

/* Awards Section */
.awards-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}
.awards-list li {
    font-family: var(--font-primary);
    color: var(--color-text-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    max-width: 200px;
}
.awards-list img {
    height: 80px; /* As per HTML */
    width: auto;
    max-width: 150px;
    object-fit: contain;
    filter: brightness(0.8) contrast(1.2); /* Enhance for dark theme */
}

/* Partners Section Carousel */
.partners-carousel {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}
.partners-carousel img {
    height: 70px; /* As per HTML */
    width: auto;
    max-width: 150px;
    object-fit: contain;
    filter: grayscale(100%) brightness(0.7) contrast(2);
    transition: filter var(--transition-speed) var(--transition-timing), transform var(--transition-speed) var(--transition-timing);
}
.partners-carousel img:hover {
    filter: grayscale(0%) brightness(1) contrast(1);
    transform: scale(1.1);
}

/* External Resources Section */
.resources-list {
    display: grid;
    gap: var(--spacing-md);
}
.resource-item {
    background-color: var(--color-background-dark);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    border-left: 4px solid var(--color-accent-secondary);
}
.resource-item h4 a {
    color: var(--color-accent-secondary);
    font-size: 1.2rem;
}
.resource-item h4 a:hover {
    color: var(--color-accent-secondary-darker);
    text-decoration: underline;
}
.resource-item p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

/* Contact Section */
.contact-content-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr; /* Two columns */
    gap: var(--spacing-xl);
    align-items: flex-start;
}
.contact-info h3, .contact-form h3 {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-headings);
}
.contact-info ul {
    list-style: none;
    padding: 0;
    margin-bottom: var(--spacing-md);
}
.contact-info ul li {
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
}
.contact-info ul li strong {
    color: var(--color-text-secondary);
}
.map-placeholder img {
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border);
    height: 250px; /* As per HTML */
    width: 100%;
    object-fit: cover;
}

/* Form Styles */
.form-group {
    margin-bottom: var(--spacing-md);
}
.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-secondary);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 500;
}
.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    background-color: var(--color-background-medium);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    color: var(--color-text-primary);
    font-family: var(--font-secondary);
    font-size: 1rem;
    transition: border-color var(--transition-speed) var(--transition-timing), box-shadow var(--transition-speed) var(--transition-timing);
}
.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-accent-primary-rgb), 0.3);
}
.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

/* Footer */
.site-footer {
    background-color: var(--color-background-dark); /* Slightly different from main BG */
    padding: var(--spacing-xl) 0 var(--spacing-md);
    color: var(--color-text-secondary);
    min-height: var(--footer-min-height);
}
.footer-container {
    /* Uses .container class */
}
.footer-widgets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}
.footer-widget h4 {
    color: var(--color-text-headings);
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
}
.footer-widget p {
    font-size: 0.9rem;
}
.footer-nav-list, .social-links {
    list-style: none;
    padding: 0;
}
.footer-nav-list li, .social-links li {
    margin-bottom: var(--spacing-xs);
}
.footer-nav-list a, .social-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-speed) var(--transition-timing);
}
.footer-nav-list a:hover, .social-links a:hover {
    color: var(--color-accent-primary);
}
.social-links {
    display: flex;
    gap: var(--spacing-sm);
}
.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    font-size: 0.9rem;
}

/* Specific Page Styles */
/* For content on pages like about.html, privacy.html, terms.html */
.standard-page-content-area { /* Add this class to <main> on these pages */
    padding-top: calc(var(--header-height) + var(--spacing-lg)); /* 70px + 32px = 102px */
    padding-bottom: var(--spacing-xxl);
    min-height: calc(100vh - var(--header-height) - var(--footer-min-height)); /* Push footer down */
}
.standard-page-content-area .container > h1:first-child { /* Title of the page */
    margin-bottom: var(--spacing-lg);
    text-align: left; /* Or center if preferred */
}
.standard-page-content-area .container > h1:first-child::after { /* Remove underline for page title */
    display: none;
}
.standard-page-content-area p,
.standard-page-content-area ul,
.standard-page-content-area ol {
    max-width: 80ch; /* Readability for text-heavy pages */
}
.standard-page-content-area ul,
.standard-page-content-area ol {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

/* Success Page (success.html) */
/* Assuming success.html uses the standard header/footer structure */
.success-content-wrapper { /* This wrapper would be inside <main> on success.html */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    min-height: calc(100vh - var(--header-height) - var(--footer-min-height) - (var(--spacing-xxl) * 2)); /* Adjust based on padding */
    padding: var(--spacing-xxl) 0;
}
.success-content-wrapper h1 {
    color: var(--color-success);
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}
.success-content-wrapper p {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

/* ScrollReveal Initial States (ScrollReveal will override this if configured differently) */
[data-sr] {
    visibility: hidden; /* Handled by ScrollReveal */
    /* Example initial state for custom animations if not using SR defaults:
    opacity: 0;
    transform: translateY(30px);
    */
}

/* Read More Link Style */
.read-more-link {
    display: inline-block;
    margin-top: var(--spacing-sm);
    color: var(--color-accent-secondary);
    text-decoration: none;
    font-weight: bold;
    font-family: var(--font-primary);
    transition: color var(--transition-speed) var(--transition-timing), transform var(--transition-speed) var(--transition-timing);
    font-size: 0.9rem;
}
.read-more-link::after {
    content: ' →';
    display: inline-block;
    transition: transform var(--transition-speed) var(--transition-timing);
}
.read-more-link:hover {
    color: var(--color-accent-secondary-darker);
    transform: translateX(4px);
}
.read-more-link:hover::after {
    transform: translateX(4px);
}


/* Responsive Design */
@media (max-width: 992px) {
    .hero-title { font-size: 2.8rem; }
    .hero-subtitle { font-size: 1.1rem; }
    .contact-content-wrapper { grid-template-columns: 1fr; }
    .map-placeholder { margin-top: var(--spacing-lg); }
}

@media (max-width: 768px) {
    .section-padding {
        padding-top: var(--spacing-xl);
        padding-bottom: var(--spacing-xl);
    }
    h1 { font-size: 2.5rem; }
    h2.section-title { font-size: 1.8rem; }
    .hero-title { font-size: 2.2rem; }

    /* Mobile Navigation */
    .main-navigation .nav-list {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: rgba(var(--color-background-darkest-rgb, 16, 20, 25), 0.98);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: var(--spacing-lg);
        transform: translateX(-100%);
        transition: transform var(--transition-speed) var(--transition-timing);
        overflow-y: auto;
    }
    .main-navigation .nav-list.active {
        transform: translateX(0);
    }
    .main-navigation .nav-list a {
        font-size: 1.5rem; /* Larger links for mobile */
        color: var(--color-text-headings);
    }
    .menu-toggle {
        display: block;
    }

    /* Timeline Responsive */
    .timeline::before {
        left: 20px;
        transform: translateX(0);
    }
    .timeline-item,
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        width: 100%;
        left: 0;
        padding-left: calc(20px + var(--spacing-lg));
        padding-right: var(--spacing-sm);
        text-align: left;
    }
    .timeline-item::after,
    .timeline-item:nth-child(odd)::after,
    .timeline-item:nth-child(even)::after {
        left: 11px; /* (20px line pos - (18px dot width / 2)) */
    }
    .footer-widgets { grid-template-columns: 1fr; text-align: center; }
    .footer-widget .social-links { justify-content: center; }
}

@media (max-width: 480px) {
    .container { width: 95%; }
    .hero-title { font-size: 1.8rem; }
    .hero-subtitle { font-size: 1rem; }
    h1 { font-size: 2rem; }
    h2.section-title { font-size: 1.6rem; }
    .cards-grid { grid-template-columns: 1fr; } /* Stack cards */
    .btn, button, input[type="submit"] {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.9rem;
    }
}