/* 
   ========================================
/*
   ========================================
   PAULA CANTARINO - LUXURY E-LEARNING
   Core Styles & Variables
   ========================================
*/

:root {
    /* Monochromatic Palette */
    --color-white: #FFFFFF;
    --color-offwhite: #F9F9F9;
    --color-light-gray: #F5F5F5;
    --color-gray: #888888;
    --color-dark-gray: #1A1A1A;
    --color-black: #000000;

    /* Typography */
    --font-heading: 'Cormorant Garamond', serif;
    --font-body: 'Inter', sans-serif;

    /* Metrics & Utilities */
    --radius-minimal: 4px;
    --shadow-soft: 0 10px 40px rgba(0, 0, 0, 0.04);
    --shadow-hover: 0 15px 50px rgba(0, 0, 0, 0.08);
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

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

body {
    font-family: var(--font-body);
    background-color: var(--color-white);
    color: var(--color-black);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.2;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-smooth);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-spacing {
    padding: 5rem 0;
}

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

/* 
   ========================================
   BUTTONS
   ========================================
*/
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    border-radius: var(--radius-minimal);
    cursor: pointer;
    transition: var(--transition-smooth);
    text-align: center;
}

.btn-solid {
    background-color: var(--color-black);
    color: var(--color-white);
    border: 1px solid var(--color-black);
}

.btn-solid:hover {
    background-color: transparent;
    color: var(--color-black);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-black);
    border: 1px solid var(--color-black);
}

.btn-outline:hover {
    background-color: var(--color-black);
    color: var(--color-white);
}

/* 
   ========================================
   HEADER & NAVIGATION
   ========================================
*/
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    /* Ultra-modern Deep Dark Glassmorphism */
    background-color: rgba(8, 8, 8, 0.65); /* Almost black, transparent */
    backdrop-filter: blur(25px) saturate(200%);
    -webkit-backdrop-filter: blur(25px) saturate(200%);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05); /* Extremely subtle border */
    transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    padding: 2.2rem 0; /* Wider navbar */
}

.navbar.scrolled {
    padding: 1.5rem 0; 
    background-color: rgba(5, 5, 5, 0.95); /* Deep solid black on scroll */
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
    border-bottom: 1px solid rgba(255, 255, 255, 0.02);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 2.5rem; /* Elegant spacing */
}

.nav-links a {
    font-family: var(--font-body); /* Ensure clean sans-serif */
    font-size: 0.85rem; /* Smaller, editorial size */
    font-weight: 400; /* Minimal weight */
    text-transform: uppercase;
    letter-spacing: 2px; /* Wide tracking for modern luxury feel */
    position: relative;
    color: rgba(255, 255, 255, 0.8); /* Slightly muted white */
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: rgba(255, 255, 255, 1); /* Full white on hover */
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: -6px; /* A bit lower */
    left: 50%; /* Start from center */
    transform: translateX(-50%);
    background-color: rgba(255, 255, 255, 0.7); /* Subtle underline */
    transition: width 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.cart-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-white);
    transition: var(--transition-smooth);
}

.cart-btn:hover {
    color: var(--color-gray);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--color-white);
    cursor: pointer;
}

.navbar .btn {
    padding: 0.6rem 1.6rem !important; 
    font-size: 0.75rem !important; 
    letter-spacing: 1.5px;
    border-radius: 50px; /* Pill shape is very modern */
}

/* Navbar Buttons for Dark Background */
.navbar .btn-outline {
    color: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.3); /* Subtle border */
    backdrop-filter: blur(5px); /* Button glass effect */
}

.navbar .btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.8);
    color: #fff;
}

.navbar .btn-solid {
    background-color: #fff;
    color: #000;
    border: 1px solid #fff;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.15); /* Soft glow */
}

.navbar .btn-solid:hover {
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

/* 
   ========================================
   HERO SECTION
   ========================================
*/
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px; 
    position: relative;
    background: var(--color-white);
}

.hero-container {
    max-width: 800px;
}

.hero-title {
    font-size: clamp(3rem, 6vw, 5rem);
    letter-spacing: 4px;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-style: italic;
    color: var(--color-dark-gray);
    margin-bottom: 2rem;
}

/* Contact Page Typography */
.contact-container p {
    color: var(--color-dark-gray);
    margin-bottom: 2rem;
}

/* Services Menu Layout */
.category-title {
    font-size: 2.2rem;
    margin-bottom: 2rem;
    text-align: center;
    border-bottom: 1px solid var(--color-gray);
    padding-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.service-list {
    max-width: 800px;
    margin: 0 auto 4rem auto;
}

.service-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.service-left {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 1.5rem;
}

.service-img {
    order: 2;
    width: 90px;
    height: 90px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.service-note {
    display: inline-block;
    font-size: 0.75rem;
    color: var(--color-gold);
    background-color: rgba(197, 168, 128, 0.1);
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    margin-top: 0.4rem;
    font-weight: 500;
}

.service-info h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    font-family: var(--font-primary);
}

.service-time {
    font-size: 0.9rem;
    color: var(--color-gray);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.service-price {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-black);
}

@media screen and (max-width: 600px) {
    .service-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    .service-price {
        align-self: flex-end;
    }
}

.hero-line {
    width: 60px;
    height: 1px;
    background-color: var(--color-black);
    margin: 0 auto 2rem;
}

.hero-description {
    font-size: 1rem;
    color: var(--color-gray);
    margin-bottom: 3rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* 
   ========================================
   COURSES GRID
   ========================================
*/
.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

.section-header h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--color-gray);
    font-size: 1.1rem;
}

.courses-grid {
    display: grid;
    /* auto-fill evita que elementos solitarios se estiren al 100% de la pantalla */
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 3rem;
    justify-content: center;
}

.course-card {
    background: var(--color-white);
    border-radius: var(--radius-minimal);
    overflow: hidden;
    transition: var(--transition-smooth);
    border: 1px solid var(--color-light-gray);
    /* Límite de tamaño para mantener elegancia */
    max-width: 450px;
    width: 100%;
}

.course-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-5px);
}

.card-image-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/5;
}

.course-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.8s ease;
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.05); /* Extremely subtle overlay */
    transition: var(--transition-smooth);
}

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

.course-card:hover .card-overlay {
    background: rgba(0,0,0,0);
}

/* Watermark styles */
.watermark-logo {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 65px;
    height: 65px;
    opacity: 0.7;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.3));
    /* Soft white glow so the black logo is visible on dark images */
    background: radial-gradient(circle, rgba(255,255,255,0.15) 30%, transparent 70%);
    border-radius: 50%;
    z-index: 2;
    transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    pointer-events: none; /* Let clicks pass through if needed */
}

.course-card:hover .watermark-logo {
    opacity: 1;
    transform: scale(1.1) rotate(-15deg);
    filter: drop-shadow(0 8px 15px rgba(0,0,0,0.4));
    /* Enhanced glow/glassmorphism effect on hover */
    background: radial-gradient(circle, rgba(255,255,255,0.3) 40%, transparent 80%);
    backdrop-filter: blur(2px);
}

.card-content {
    padding: 2rem;
    text-align: center;
}

.card-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.course-price {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--color-gray);
    margin-bottom: 1.5rem;
}

.course-btn {
    width: 100%;
}

/* 
   ========================================
   COURSE FILTERS
   ========================================
*/
.course-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 3.5rem;
}

.filter-btn {
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--color-gray);
    padding: 0.4rem 1rem;
    font-family: var(--font-body);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 0;
}

.filter-btn:hover {
    color: var(--color-black);
}

.filter-btn.active {
    color: var(--color-black);
    border-bottom: 2px solid var(--color-black);
}

.course-card.hide-course {
    display: none !important;
}

/* 
   ========================================
   AUTHORITY SECTION
   ========================================
*/
.authority-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.authority-image {
    position: relative;
}

.authority-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 1px solid var(--color-light-gray);
    z-index: -1;
}

.authority-content h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.divider {
    width: 40px;
    height: 2px;
    background-color: var(--color-black);
    margin-bottom: 2rem;
}

.authority-content p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: var(--color-dark-gray);
}

.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    margin-top: 1rem;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.link-arrow i {
    transition: transform 0.3s ease;
}

.link-arrow:hover i {
    transform: translateX(5px);
}

/* 
   ========================================
   SOCIAL PROOF & CERTIFICATION
   ========================================
*/
.proof-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.cert-display h3, .testimonials h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.cert-display p {
    color: var(--color-gray);
    margin-bottom: 2rem;
}

.cert-img-container {
    padding: 1rem;
    background: var(--color-white);
    border: 1px solid var(--color-light-gray);
}

.shadow-soft {
    box-shadow: var(--shadow-soft);
}

.testimonial-slider {
    position: relative;
}

.testimonial-card {
    background: var(--color-white);
    padding: 2.5rem;
    border-left: 3px solid var(--color-black);
    box-shadow: var(--shadow-soft);
}

.mt-2 {
    margin-top: 2rem;
}

.testimonial-card p {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-style: italic;
    margin-bottom: 1rem;
}

.testimonial-card footer {
    font-size: 0.9rem;
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 
   ========================================
   FOOTER
   ========================================
*/
.footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: 6rem 0 2rem;
}

.footer-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand h2 {
    font-size: 1.8rem;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: var(--color-gray);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.link-group h4 {
    font-family: var(--font-body);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-gray);
    margin-bottom: 1.5rem;
}

.link-group a {
    display: block;
    color: var(--color-light-gray);
    margin-bottom: 0.8rem;
    font-size: 0.95rem;
}

.link-group a:hover {
    color: var(--color-white);
    padding-left: 5px;
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icons a {
    font-size: 1.5rem;
    color: var(--color-white);
    transition: var(--transition-smooth);
}

.social-icons a:hover {
    transform: translateY(-3px);
}

.social-icons a.social-ig:hover {
    color: #E1306C;
}

.social-icons a.social-fb:hover {
    color: #1877F2;
}

.social-icons a.social-tt:hover {
    color: #00f2fe; /* TikTok cyan as highlight */
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    color: var(--color-gray);
    font-size: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-legal-links {
    display: flex;
    gap: 1.5rem;
}

.footer-legal-links a {
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition-smooth);
}

.footer-legal-links a:hover {
    color: var(--color-white);
}

/* 
   ========================================
   CONTACT SECTION
   ========================================
*/
.contact-container {
    max-width: 600px;
    margin: 0 auto;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.form-group {
    width: 100%;
}

.form-control {
    width: 100%;
    padding: 1rem 1.5rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    border: 1px solid var(--color-light-gray);
    border-radius: var(--radius-minimal);
    background-color: var(--color-offwhite);
    color: var(--color-black);
    transition: var(--transition-smooth);
    outline: none;
}

.form-control:focus {
    border-color: var(--color-gray);
    background-color: var(--color-white);
    box-shadow: 0 0 0 4px rgba(0,0,0,0.03);
}

.submit-btn {
    width: 100%;
    border-radius: 50px;
}

/* 
   ========================================
   FLOATING WHATSAPP
   ========================================
*/
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25D366; /* WhatsApp Green */
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

/* 
   ========================================
   ANIMATIONS
   ========================================
*/
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }

/* 
   ========================================
   RESPONSIVE DESIGN
   ========================================
*/
@media (max-width: 900px) {
    .authority-container, .proof-grid, .footer-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    /* Navigation Reset for Mobile */
    .nav-container {
        position: relative;
    }

    .nav-links {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%; /* Default right below header */
        left: 0;
        width: 100%;
        background-color: rgba(5, 5, 5, 0.98); /* Deep dark for mobile menu */
        backdrop-filter: blur(15px);
        gap: 1.5rem;
        padding: 0; /* Hidden by default */
        max-height: 0;
        overflow: hidden;
        transition: all 0.4s ease;
        text-align: center;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    .nav-links.active {
        padding: 2rem 0; /* Fully visible */
        max-height: 500px; /* Big enough to fit links */
        box-shadow: 0 10px 20px rgba(0,0,0,0.3);
    }
    
    .nav-actions {
        display: none; /* Hidden if outside */
    }
    
    .nav-links .nav-actions {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 1rem;
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        width: 100%;
    }
    
    .nav-links .nav-actions .btn {
        width: 100%;
        text-align: center;
    }
    
    .mobile-toggle {
        display: block;
        margin-left: auto; /* Push to right */
    }
    
    /* Ensure logo stays small enough on mobile and overlaps nicely */
    .logo {
        width: 120px;
    }
    .nav-logo-img {
        height: 80px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .section-spacing {
        padding: 5rem 0;
    }
}

/* --- Added Styles for New Logo and Portrait images --- */
.logo {
    display: flex;
    align-items: center;
    position: relative;
    z-index: 1001;
    width: 140px; 
    height: 40px; 
}

.nav-logo-img {
    height: 110px; /* Sweeter spot for modern aesthetic */
    width: auto;
    filter: brightness(0) invert(1); 
    display: block;
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

.nav-logo-img:hover {
    transform: translateY(-50%) scale(1.05); /* Clean zoom on hover */
}

.footer-logo-img {
    height: 60px;
    width: auto;
    display: block;
    margin-bottom: 1rem;
    filter: none; /* Keep white on the dark footer background */
}

.portrait-img {
    border-radius: var(--radius-minimal);
    box-shadow: var(--shadow-soft);
    object-position: top center; /* Focus on face */
}

.pre-footer-banner {
    width: 100%;
    background-color: var(--color-black);
    text-align: center;
    overflow: hidden;
    margin: 0;
    padding: 0;
}

.pre-footer-banner img {
    display: block;
    margin: 0 auto;
    width: 100%;
    max-width: 100%;
    height: 50vh;
    min-height: 400px;
    object-fit: cover;
    object-position: center;
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1), filter 0.6s ease;
    filter: brightness(0.9);
}

.pre-footer-banner:hover img {
    transform: scale(1.03);
    filter: brightness(1.1);
}

/* 
   ========================================
   EXPANDABLE COURSE CARDS
   ========================================
*/

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 5rem;
}

.course-card {
    background: var(--color-white);
    border-radius: var(--radius-minimal);
    overflow: hidden;
    transition: var(--transition-smooth);
    border: 1px solid var(--color-light-gray);
    display: flex;
    flex-direction: column;
}

.course-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-5px);
}

.card-image-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/5;
}

.course-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.8s ease;
}

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

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.05);
    transition: var(--transition-smooth);
}

.course-card:hover .card-overlay {
    background: rgba(0,0,0,0);
}

.card-content {
    padding: 2rem;
    text-align: center;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

@media (max-width: 600px) {
    .card-content {
        padding: 1.2rem;
    }
}

.card-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.course-price {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--color-gray);
    margin-bottom: 1.5rem;
}

.course-btn {
    width: 100%;
    margin-top: auto;
}

/* Detailed Expandable Info */
.card-detailed-info {
    display: none; /* Hidden by default */
    margin-top: 2rem;
    text-align: left;
    border-top: 1px solid var(--color-light-gray);
    padding-top: 2rem;
    animation: fadeIn 0.4s ease;
}

.card-detailed-info.active {
    display: block;
}

.course-card.expanded {
    grid-column: 1 / -1; /* Takes full width of the grid when expanded */
    flex-direction: row;
    max-width: 100%; /* Override the 450px limit when expanded */
}

@media (max-width: 900px) {
    .course-card.expanded {
        flex-direction: column;
    }
}

.course-card.expanded .card-image-wrapper {
    width: 40%;
    aspect-ratio: auto;
}

@media (max-width: 900px) {
    .course-card.expanded .card-image-wrapper {
        width: 100%;
        aspect-ratio: 4/5;
    }
}

.course-card.expanded .card-content {
    width: 60%;
    align-items: flex-start;
    text-align: left;
}

@media (max-width: 900px) {
    .course-card.expanded .card-content {
        width: 100%;
    }
}

.course-card.expanded .course-btn {
    display: none; /* Hide 'Más Info' when expanded */
}

/* Elegant Grid Inside Expanded Card */
.expanded-content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 1.5rem;
}

@media (max-width: 900px) {
    .expanded-content-grid {
        grid-template-columns: 1fr;
    }
}

/* Mini Banner */
.mini-banner {
    background-color: #F9F7F5; /* Elegant beige */
    border: 1px solid #EAE0D5;
    border-radius: 6px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

@media (max-width: 600px) {
    .mini-banner {
        flex-direction: column;
        text-align: center;
        gap: 1.2rem;
        padding: 1.2rem;
    }
    .mini-banner .cta-area {
        text-align: center !important;
        width: 100%;
    }
    .mini-banner .cta-area .btn-gold {
        display: block;
        width: 100%;
    }
}

.mini-banner .status {
    font-size: 0.8rem;
    color: #a48650; /* Elegant gold/brown */
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.mini-banner .price h4 {
    font-size: 1.1rem;
    margin: 0;
    color: var(--color-dark-gray);
}

.mini-banner .amount {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-black);
}

.btn-gold {
    background-color: var(--color-black);
    color: var(--color-white);
    border: 1px solid var(--color-black);
    padding: 0.6rem 1.5rem;
    border-radius: var(--radius-minimal);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-gold:hover {
    background-color: transparent;
    color: var(--color-black);
}

/* Mini Tabs */
.mini-tabs {
    margin-bottom: 2rem;
}

.mini-tab-headers {
    display: flex;
    gap: 1rem;
    border-bottom: 1px solid #EAEAEA;
    margin-bottom: 1.5rem;
    overflow-x: auto;
}

.mini-tab-btn {
    background: none;
    border: none;
    padding: 0.5rem 0;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    position: relative;
    white-space: nowrap;
}

.mini-tab-btn::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-black);
    transition: width 0.3s ease;
}

.mini-tab-btn.active {
    color: var(--color-black);
}

.mini-tab-btn.active::after {
    width: 100%;
}

.mini-tab-content {
    display: none;
    font-size: 0.9rem;
    color: var(--color-dark-gray);
    animation: fadeIn 0.3s ease;
}

.mini-tab-content.active {
    display: block;
}

.mini-tab-content h4 {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    font-family: var(--font-body);
}

.mini-tab-content ul {
    list-style: none;
    padding-left: 0.2rem;
}

.mini-tab-content ul li {
    margin-bottom: 0.5rem;
    display: flex;
    gap: 0.5rem;
}

.mini-tab-content ul li::before {
    content: '—';
    color: #a48650;
}

/* Mini Form */
.mini-form-container {
    background-color: #FAFAFA;
    padding: 1.5rem;
    border-radius: 6px;
    border: 1px solid #F0F0F0;
}

.mini-form-container h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.mini-form-container p {
    font-size: 0.8rem;
    color: var(--color-gray);
    margin-bottom: 1rem;
}

.mini-form-container .form-control {
    width: 100%;
    padding: 0.7rem;
    margin-bottom: 0.8rem;
    font-size: 0.85rem;
    border: 1px solid #EAEAEA;
    border-radius: 4px;
    font-family: var(--font-body);
}

.mini-form-container textarea.form-control {
    min-height: 80px;
    resize: vertical;
}

.close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-gray);
    cursor: pointer;
    display: none;
}

.course-card.expanded .close-btn {
    display: block;
}

.course-card.expanded .close-btn:hover {
    color: var(--color-black);
}

/* 
   ========================================
   STUDENT PORTAL STYLES (alumnos.html & curso-aula.html)
   ========================================
*/

.student-portal-body {
    background-color: var(--color-offwhite);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.portal-navbar {
    border-bottom: 1px solid rgba(0,0,0,0.05);
    background-color: var(--color-white);
    position: sticky;
    top: 0;
    z-index: 100;
}

.portal-user-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.user-greeting {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.9rem;
    color: var(--color-black);
}

.user-avatar {
    width: 35px;
    height: 35px;
    background-color: var(--color-black);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-family: var(--font-heading);
}

.portal-main {
    flex-grow: 1;
    padding: 3rem 0;
}

.portal-container {
    display: flex;
    gap: 3rem;
    align-items: flex-start;
}

/* Minimalist Sidebar Dashboard */
.portal-sidebar {
    width: 250px;
    flex-shrink: 0;
}

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

.portal-menu a {
    padding: 1rem 1.5rem;
    color: var(--color-gray);
    text-decoration: none;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
    border-radius: var(--radius-minimal);
}

.portal-menu a i {
    font-size: 1.25rem;
}

.portal-menu a:hover {
    color: var(--color-black);
    background-color: rgba(0,0,0,0.02);
}

.portal-menu a.active {
    color: var(--color-black);
    background-color: var(--color-white);
    box-shadow: var(--shadow-soft);
    font-weight: 500;
}

/* Main Content Dashboard */
.portal-content {
    flex-grow: 1;
    background-color: transparent;
}

.portal-header {
    margin-bottom: 3rem;
}

.portal-header h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
}

.portal-header p {
    color: var(--color-gray);
    font-size: 1.05rem;
}

/* High-End Course Cards */
.enrolled-courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2.5rem;
}

.enrolled-card {
    background-color: var(--color-white);
    border-radius: var(--radius-minimal);
    overflow: hidden;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(0,0,0,0.05);
}

.enrolled-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.06);
}

.enrolled-img-box {
    width: 100%;
    aspect-ratio: 16/9;
    position: relative;
    overflow: hidden;
}

.enrolled-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.enrolled-card:hover .enrolled-img-box img {
    transform: scale(1.03);
}

.live-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: var(--color-black);
    color: white;
    font-size: 0.7rem;
    padding: 0.4rem 0.8rem;
    border-radius: 50px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.enrolled-info {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.enrolled-info h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.progress-container {
    margin-bottom: 1.5rem;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background-color: rgba(0,0,0,0.05);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 0.8rem;
}

.progress-fill {
    height: 100%;
    background-color: var(--color-black);
    border-radius: 10px;
}

.progress-text {
    font-size: 0.75rem;
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.next-class-info {
    font-size: 0.85rem;
    color: var(--color-dark-gray);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: rgba(0,0,0,0.02);
    padding: 0.8rem;
    border-radius: var(--radius-minimal);
}

.course-actions {
    margin-top: auto;
    width: 100%;
}

.course-actions .btn {
    width: 100%;
    padding: 1rem;
    font-size: 0.8rem;
}

/* Responsive Portal */
@media (max-width: 900px) {
    .portal-container {
        flex-direction: column;
        gap: 2rem;
    }
    
    .portal-sidebar {
        width: 100%;
        display: none; /* Can be handled as a mobile menu later */
    }
    
    .portal-main {
        padding: 1.5rem 0;
    }
}