/* ========================================
   CSS Custom Properties
   ======================================== */
:root {
    /* Primary — CIbSE brand */
    --color-dark:       #0f2b46;
    --color-dark-2:     #1a3d5c;
    --color-accent:     #2a8b4b;
    --color-accent-hover: #238040;
    --color-gray:       #6b7280;

    /* Backgrounds */
    --bg-main:          #F3F4F3;
    --bg-alt:           #ECEDED;
    --bg-white:         #FFFFFF;

    /* UI Controls */
    --color-disabled:   #A3A3A3;
    --color-border:     #D1D5DB;
    --color-divider:    #BFC4C8;

    /* Accent / Interaction */
    --color-hover:      #0a1f33;

    /* Derived */
    --color-dark-alpha: rgba(15, 43, 70, 0.95);
    --color-dark-glass: rgba(15, 43, 70, 0.85);

    /* Spacing */
    --space-xs:   0.25rem;
    --space-sm:   0.5rem;
    --space-md:   1rem;
    --space-lg:   1.5rem;
    --space-xl:   2rem;
    --space-2xl:  3rem;
    --space-3xl:  4rem;
    --space-4xl:  6rem;
    --space-5xl:  8rem;

    /* Radii */
    --radius-sm:   0.5rem;
    --radius-md:   0.75rem;
    --radius-lg:   1rem;
    --radius-xl:   1.5rem;
    --radius-2xl:  2rem;
    --radius-full: 9999px;

    /* Transitions */
    --ease-out:   cubic-bezier(0.22, 1, 0.36, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --duration-fast: 0.2s;
    --duration-med:  0.4s;
    --duration-slow: 0.6s;

    /* Shadows */
    --shadow-sm:  0 1px 3px rgba(31,39,48,0.06);
    --shadow-md:  0 4px 16px rgba(31,39,48,0.08);
    --shadow-lg:  0 8px 32px rgba(31,39,48,0.10);
    --shadow-xl:  0 16px 48px rgba(31,39,48,0.14);

    /* Font */
    --font: 'Montserrat', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    font-weight: 400;
    color: var(--color-dark-2);
    background-color: var(--bg-main);
    overflow-x: hidden;
    line-height: 1.6;
}

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

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

ul { list-style: none; }

strong { font-weight: 700; color: var(--color-dark); }

/* ========================================
   Container
   ======================================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.container-narrow {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

@media (min-width: 640px) {
    .container, .container-narrow { padding: 0 var(--space-lg); }
}
@media (min-width: 1024px) {
    .container, .container-narrow { padding: 0 var(--space-xl); }
}

/* ========================================
   Loader
   ======================================== */
.loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--color-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: all;
}

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

.loader-text {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    color: var(--bg-white);
    letter-spacing: 0.05em;
    display: flex;
    gap: 0.02em;
}

.loader-text span {
    display: inline-block;
    opacity: 0;
    transform: translateY(40px);
}

.loader-year {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 300;
    color: var(--color-divider);
    letter-spacing: 0.5em;
    margin-top: var(--space-sm);
    opacity: 0;
}

.loader-bar {
    width: 120px;
    height: 2px;
    background: rgba(255,255,255,0.1);
    margin: var(--space-xl) auto 0;
    border-radius: var(--radius-full);
    overflow: hidden;
    opacity: 0;
}

.loader-bar-fill {
    width: 0%;
    height: 100%;
    background: var(--bg-white);
    border-radius: var(--radius-full);
}

/* ========================================
   Custom Cursor
   ======================================== */
.custom-cursor {
    position: fixed;
    width: 8px;
    height: 8px;
    background: var(--color-dark);
    border-radius: 50%;
    pointer-events: none;
    z-index: 10000;
    mix-blend-mode: difference;
    transform: translate(-50%, -50%);
    transition: width 0.3s var(--ease-out), height 0.3s var(--ease-out), background 0.3s;
}

.custom-cursor-follower {
    position: fixed;
    width: 36px;
    height: 36px;
    border: 1.5px solid rgba(31,39,48,0.3);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: difference;
    transform: translate(-50%, -50%);
    transition: width 0.4s var(--ease-out), height 0.4s var(--ease-out), border-color 0.3s;
}

.custom-cursor.cursor-hover {
    width: 48px;
    height: 48px;
    background: rgba(255,255,255,0.15);
}

.custom-cursor-follower.cursor-hover {
    width: 56px;
    height: 56px;
    border-color: rgba(255,255,255,0.4);
}

@media (max-width: 768px) {
    .custom-cursor, .custom-cursor-follower { display: none; }
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--space-lg) 0;
    transition: background var(--duration-med) var(--ease-out),
                padding var(--duration-med) var(--ease-out),
                border-color var(--duration-med) var(--ease-out),
                backdrop-filter var(--duration-med) var(--ease-out);
    border-bottom: 1px solid transparent;
}

.navbar.scrolled {
    background: rgba(243, 244, 243, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: var(--space-sm) 0;
    border-bottom-color: var(--color-border);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 48px;
}

@media (min-width: 640px) {
    .nav-container { padding: 0 var(--space-lg); }
}
@media (min-width: 1024px) {
    .nav-container { padding: 0 var(--space-xl); }
}

.nav-logo {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--bg-white);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    transition: color var(--duration-med);
    letter-spacing: -0.02em;
}

.nav-logo i {
    font-size: 1.2rem;
    color: var(--color-accent);
}

.logo-accent {
    font-weight: 300;
    color: var(--color-accent);
    opacity: 1;
}

.navbar.scrolled .nav-logo {
    color: var(--color-dark);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--bg-white);
    transition: color var(--duration-fast);
    position: relative;
    letter-spacing: 0.01em;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: currentColor;
    transition: width 0.3s var(--ease-out);
}

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

.navbar.scrolled .nav-link {
    color: var(--color-dark-2);
}

.navbar.scrolled .nav-link:hover {
    color: var(--color-hover);
}

.nav-cta {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--bg-white);
    background: var(--color-accent);
    padding: 0.6rem 1.5rem;
    border-radius: var(--radius-full);
    transition: background var(--duration-fast), transform var(--duration-fast), box-shadow var(--duration-fast);
    letter-spacing: 0.01em;
}

.nav-cta:hover {
    background: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(42,139,75,0.3);
}

.navbar.scrolled .nav-cta {
    background: var(--color-accent);
    color: var(--bg-white);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    gap: 6px;
    padding: 0;
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--bg-white);
    border-radius: 2px;
    transition: transform 0.3s var(--ease-out), opacity 0.3s, background 0.3s;
}

.navbar.scrolled .hamburger-line {
    background: var(--color-dark);
}

.mobile-menu-btn.active .line-1 {
    transform: translateY(8px) rotate(45deg);
}
.mobile-menu-btn.active .line-2 {
    opacity: 0;
}
.mobile-menu-btn.active .line-3 {
    transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    flex-direction: column;
    background: var(--bg-white);
    padding: var(--space-xl);
    gap: var(--space-md);
    border-top: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s var(--ease-out), padding 0.4s var(--ease-out);
}

.mobile-menu.open {
    max-height: 600px;
    padding: var(--space-xl);
}

.mobile-link {
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--color-dark-2);
    padding: var(--space-sm) 0;
    transition: color var(--duration-fast);
}

.mobile-link:hover {
    color: var(--color-dark);
}

.mobile-link-cta {
    font-weight: 700;
    color: var(--color-accent);
    padding-top: var(--space-lg);
    margin-top: var(--space-sm);
    border-top: 1px solid var(--color-border);
}

@media (max-width: 900px) {
    .nav-links { display: none; }
    .mobile-menu-btn { display: flex; }
    .mobile-menu { display: flex; max-height: 0; padding: 0 var(--space-xl); }
    .mobile-menu.open { max-height: 600px; padding: var(--space-xl); }
}

/* ========================================
   Hero
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--color-dark);
    overflow: hidden;
    padding: var(--space-5xl) var(--space-xl) var(--space-3xl);
}

.hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg,
        rgba(31,39,48,0.3) 0%,
        rgba(31,39,48,0.6) 60%,
        rgba(31,39,48,0.95) 100%
    );
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 860px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    border: 1px solid rgba(42,139,75,0.3);
    border-radius: var(--radius-full);
    background: rgba(42,139,75,0.1);
    color: var(--bg-white);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: var(--space-xl);
    backdrop-filter: blur(8px);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    color: var(--bg-white);
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-xl);
}

.hero-title-accent {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-accent) 0%, #5cdb7e 50%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 900;
}

.hero-description {
    font-size: clamp(1rem, 1.8vw, 1.15rem);
    font-weight: 400;
    color: rgba(255,255,255,0.6);
    max-width: 640px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.7;
}

.hero-ctas {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.9rem 2rem;
    border-radius: var(--radius-full);
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--duration-med) var(--ease-out);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--bg-white);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--color-accent-hover);
    transform: translateX(-101%);
    transition: transform 0.4s var(--ease-out);
    z-index: 0;
}

.btn-primary:hover::before {
    transform: translateX(0);
}

.btn-primary:hover {
    color: var(--bg-white);
    box-shadow: 0 8px 24px rgba(42,139,75,0.35);
}

.btn-primary > * {
    position: relative;
    z-index: 1;
}

.btn-primary i {
    position: relative;
    z-index: 1;
}

.btn-outline {
    background: transparent;
    color: var(--bg-white);
    border: 1.5px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
    background: var(--bg-white);
    color: var(--color-dark);
    border-color: var(--bg-white);
}

/* Hero Stats */
.hero-stats {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2xl);
    margin-top: var(--space-4xl);
    padding-top: var(--space-2xl);
    border-top: 1px solid rgba(255,255,255,0.1);
    flex-wrap: wrap;
}

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

.stat-number {
    display: block;
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 800;
    color: var(--bg-white);
    letter-spacing: -0.02em;
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    color: rgba(255,255,255,0.4);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: var(--space-xs);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.1);
}

@media (max-width: 640px) {
    .hero-stats {
        gap: var(--space-lg);
    }
    .stat-divider {
        display: none;
    }
    .stat-item {
        flex: 0 0 45%;
    }
}

/* ========================================
   Sections — Common
   ======================================== */
.section {
    position: relative;
    padding: var(--space-5xl) 0;
    overflow: hidden;
}

.section-light { background: var(--bg-white); }
.section-alt   { background: var(--bg-alt); }
.section-dark  { background: var(--color-dark); color: var(--bg-white); }

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-number {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--color-disabled);
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.section-header-light .section-number {
    color: rgba(255,255,255,0.3);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--color-dark);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-header-light .section-title {
    color: var(--bg-white);
}

.section-line {
    width: 48px;
    height: 3px;
    background: var(--color-accent);
    margin: var(--space-md) auto 0;
    border-radius: var(--radius-full);
}

.section-header-light .section-line {
    background: var(--color-accent);
}

.section-subtitle {
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-gray);
    max-width: 600px;
    margin: var(--space-lg) auto 0;
    line-height: 1.7;
}

.section-header-light .section-subtitle {
    color: rgba(255,255,255,0.5);
}

/* ========================================
   About / Sobre CIbSE
   ======================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: start;
}

@media (max-width: 900px) {
    .about-grid { grid-template-columns: 1fr; gap: var(--space-2xl); }
}

.about-description {
    font-size: 1.05rem;
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: var(--space-2xl);
    text-align: justify;
}

.about-subtitle {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-dark);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.about-subtitle-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--bg-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--color-dark-2);
    flex-shrink: 0;
}

.event-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.event-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-main);
    border-radius: var(--radius-lg);
    transition: box-shadow var(--duration-med), transform var(--duration-med);
    color: var(--color-gray);
    line-height: 1.6;
}

.event-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.event-marker {
    color: var(--color-accent);
    font-size: 1.1rem;
    flex-shrink: 0;
    margin-top: 2px;
}

/* About Card */
.about-card-wrapper {
    position: relative;
}

.about-card-bg {
    position: absolute;
    inset: 0;
    background: var(--bg-alt);
    border-radius: var(--radius-2xl);
    transform: translate(12px, 12px);
}

.about-card {
    position: relative;
    z-index: 1;
    background: var(--color-dark);
    border-radius: var(--radius-2xl);
    padding: var(--space-3xl);
    color: var(--bg-white);
}

.about-card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: var(--space-xl);
    color: var(--bg-white);
}

.about-card-title {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: var(--space-lg);
    letter-spacing: -0.02em;
}

.about-card-text {
    color: rgba(255,255,255,0.55);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.about-card-text:last-child { margin-bottom: 0; }

/* ========================================
   Sede
   ======================================== */
.sede-card {
    display: flex;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    background: var(--bg-white);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
}

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

.sede-text {
    flex: 1;
    padding: var(--space-3xl) var(--space-3xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.sede-label {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.sede-title {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 900;
    color: var(--color-dark);
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
}

.sede-description {
    font-size: 1.05rem;
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: var(--space-md);
    text-align: justify;
}

.sede-visual {
    flex: 1;
    background: var(--color-dark);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-3xl);
    position: relative;
    min-height: 360px;
}

.sede-pattern {
    position: absolute;
    inset: 0;
    opacity: 0.06;
    background-image: radial-gradient(circle at 2px 2px, var(--bg-white) 1px, transparent 0);
    background-size: 28px 28px;
}

.sede-icon {
    font-size: 5rem;
    color: rgba(255,255,255,0.15);
    margin-bottom: var(--space-xl);
    position: relative;
    z-index: 1;
}

.sede-tagline {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--bg-white);
    text-align: center;
    position: relative;
    z-index: 1;
    line-height: 1.4;
    max-width: 320px;
}

/* ========================================
   Charlas / Speakers
   ======================================== */
.speakers-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    max-width: 960px;
    margin: 0 auto;
}

@media (max-width: 1024px) {
    .speakers-grid { grid-template-columns: repeat(2, 1fr); max-width: none; }
}

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

.speakers-grid-4 {
    grid-template-columns: repeat(4, 1fr);
    max-width: none;
}

@media (max-width: 1024px) {
    .speakers-grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
    .speakers-grid-4 { grid-template-columns: 1fr; }
}

.speaker-card {
    background: var(--bg-main);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    border: 1px solid transparent;
    transition: transform var(--duration-med) var(--ease-out),
                box-shadow var(--duration-med),
                border-color var(--duration-med);
}

.speaker-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-border);
}

.speaker-icon-wrap {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--bg-white);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    font-size: 1.6rem;
    color: var(--color-dark);
    border: 1px solid var(--color-border);
    transition: background var(--duration-med), color var(--duration-med), border-color var(--duration-med);
}

.speaker-card:hover .speaker-icon-wrap {
    background: var(--color-dark);
    color: var(--color-accent);
    border-color: var(--color-dark);
}

.speaker-name {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-xs);
}

.speaker-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
}

.speaker-quote {
    font-size: 0.9rem;
    color: var(--color-gray);
    line-height: 1.6;
    font-weight: 400;
}

/* ========================================
   Patrocinio / Pricing
   ======================================== */
.section-dark { position: relative; }

.patrocinio-glow {
    position: absolute;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.08;
}

.patrocinio-glow-1 {
    top: -80px;
    right: -80px;
    background: var(--color-divider);
}

.patrocinio-glow-2 {
    bottom: -80px;
    left: -80px;
    background: var(--color-border);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    max-width: 1100px;
    margin: 0 auto;
    align-items: start;
}

@media (max-width: 900px) {
    .pricing-grid { grid-template-columns: 1fr; max-width: 420px; }
}

.pricing-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: transform var(--duration-med) var(--ease-out),
                border-color var(--duration-med),
                box-shadow var(--duration-med);
}

.pricing-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255,255,255,0.2);
    box-shadow: 0 16px 48px rgba(0,0,0,0.2);
}

.pricing-card-featured {
    background: var(--bg-white);
    border: 2px solid var(--color-accent);
    color: var(--color-dark-2);
    position: relative;
    transform: translateY(-12px);
    box-shadow: 0 8px 32px rgba(42,139,75,0.15);
}

.pricing-card-featured:hover {
    transform: translateY(-18px);
    border-color: var(--color-accent);
}

.pricing-badge {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--color-accent);
    color: var(--bg-white);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.4rem 1rem;
    border-radius: 0 0 0 var(--radius-md);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.pricing-header {
    padding: var(--space-xl);
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    background: rgba(255,255,255,0.02);
}

.pricing-header-featured {
    background: var(--bg-main);
    border-bottom: 1px solid var(--color-border);
}

.pricing-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--bg-white);
}

.pricing-card-featured .pricing-name {
    color: var(--color-dark);
}

.pricing-body {
    padding: var(--space-xl);
}

.pricing-includes {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-dark);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-border);
}

.pricing-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    font-size: 0.9rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.5;
}

.pricing-features li i {
    margin-top: 3px;
    flex-shrink: 0;
    font-size: 0.8rem;
    color: var(--color-accent);
}

.pricing-features-featured li {
    color: var(--color-gray);
}

.pricing-features-featured li i {
    color: #D4A843;
}

/* Patrocinio CTA */
.patrocinio-cta {
    max-width: 860px;
    margin: var(--space-3xl) auto 0;
}

.patrocinio-cta-border {
    padding: 1.5px;
    border-radius: var(--radius-2xl);
    background: linear-gradient(135deg, rgba(255,255,255,0.15), rgba(255,255,255,0.04));
}

.patrocinio-cta-inner {
    background: var(--color-dark-2);
    border-radius: calc(var(--radius-2xl) - 1.5px);
    padding: var(--space-3xl);
    text-align: center;
}

.patrocinio-cta-icon {
    font-size: 2.5rem;
    color: rgba(255,255,255,0.2);
    margin-bottom: var(--space-lg);
}

.patrocinio-cta-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--bg-white);
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.patrocinio-cta-text {
    color: rgba(255,255,255,0.5);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

.patrocinio-emails {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
}

.patrocinio-email {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.06);
    color: var(--bg-white);
    font-size: 0.85rem;
    font-weight: 600;
    transition: background var(--duration-fast), transform var(--duration-fast);
    border: 1px solid rgba(255,255,255,0.08);
}

.patrocinio-email:hover {
    background: rgba(255,255,255,0.12);
    transform: translateY(-1px);
}

.patrocinio-footnote {
    text-align: center;
    font-size: 0.8rem;
    font-weight: 300;
    color: rgba(255,255,255,0.3);
    margin-top: var(--space-2xl);
}

/* ========================================
   Pagos / Payment
   ======================================== */
.payment-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    max-width: 1100px;
    margin: 0 auto;
}

@media (max-width: 900px) {
    .payment-grid { grid-template-columns: 1fr; max-width: 420px; }
}

.payment-card {
    background: var(--bg-main);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    border: 1px solid var(--color-border);
    transition: transform var(--duration-med) var(--ease-out), box-shadow var(--duration-med);
    display: flex;
    flex-direction: column;
}

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

.payment-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    font-size: 1.3rem;
}

.payment-icon-blue {
    background: rgba(31,39,48,0.06);
    color: var(--color-dark);
}

.payment-icon-green {
    background: rgba(42,139,75,0.08);
    color: var(--color-accent);
}

.payment-icon-amber {
    background: rgba(212,168,67,0.12);
    color: #B8922F;
}

.payment-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-dark);
    text-align: center;
    margin-bottom: var(--space-lg);
}

.payment-body {
    flex: 1;
    color: var(--color-gray);
    font-size: 0.9rem;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

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

.payment-highlight {
    background: var(--bg-white);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    text-align: center;
}

.payment-account {
    display: block;
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--color-accent);
    letter-spacing: 0.08em;
    margin-top: var(--space-xs);
}

.payment-location {
    display: block;
    font-size: 1.1rem;
    color: var(--color-dark);
}

.payment-sublocation {
    display: block;
    font-size: 0.8rem;
    color: var(--color-gray);
    margin-top: 2px;
}

.payment-code {
    display: block;
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--color-accent);
    letter-spacing: 0.1em;
    margin-top: var(--space-sm);
}

.payment-note {
    background: rgba(31,39,48,0.03);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid rgba(31,39,48,0.06);
    margin-top: auto;
}

.payment-note-title {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
}

.payment-note-title i {
    color: var(--color-accent);
}

.payment-note ul {
    padding-left: var(--space-lg);
    list-style: disc;
}

.payment-note ul li {
    font-size: 0.8rem;
    line-height: 1.6;
}

.payment-note-green {
    background: rgba(47,57,68,0.03);
    border-color: rgba(47,57,68,0.08);
    text-align: center;
}

.payment-note-amber {
    background: rgba(212,168,67,0.05);
    border-color: rgba(212,168,67,0.15);
}

.payment-note-amber p {
    font-size: 0.78rem;
    line-height: 1.5;
    color: var(--color-dark-2);
}

.payment-small-text {
    font-size: 0.85rem;
    text-align: center;
}

.payment-contacts {
    background: var(--bg-white);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.payment-contact-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.85rem;
    color: var(--color-dark-2);
    transition: color var(--duration-fast);
}

.payment-contact-link:hover {
    color: var(--color-dark);
}

.payment-contact-link i {
    color: var(--color-accent);
    width: 18px;
    text-align: center;
}

/* ========================================
   Pricing Table
   ======================================== */
.pricing-table-wrap {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.pricing-table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.pricing-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    min-width: 1020px;
}

.pricing-table thead {
    background: var(--color-dark);
    color: var(--bg-white);
}

.pricing-table th {
    padding: var(--space-md) var(--space-lg);
    font-weight: 700;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: center;
    border-right: 1px solid rgba(255,255,255,0.08);
}

.th-sub {
    display: block;
    font-weight: 400;
    font-size: 0.68rem;
    text-transform: none;
    letter-spacing: 0;
    opacity: 0.6;
    margin-top: 2px;
}

.pricing-table th:first-child,
.pricing-table th:nth-child(2) {
    text-align: center;
}

.pricing-table th:nth-child(3),
.pricing-table th:nth-child(4) {
    text-align: left;
}

.pricing-table th:last-child {
    border-right: none;
}

.pricing-table td {
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border);
    text-align: center;
    color: var(--color-gray);
    vertical-align: middle;
}

.pricing-table td:last-child {
    border-right: none;
}

.pricing-table tbody tr:last-child td {
    border-bottom: none;
}

.pricing-table tbody tr {
    transition: background var(--duration-fast);
}

.pricing-table tbody tr:hover {
    background: rgba(42,139,75,0.03);
}

.price-cell {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--color-dark) !important;
    letter-spacing: -0.02em;
}

.price-regular {
    color: var(--color-gray) !important;
    font-weight: 600;
    font-size: 1rem;
}

.price-early {
    color: var(--color-accent) !important;
    font-weight: 800;
    font-size: 1.2rem;
}

.type-cell {
    font-weight: 600;
    color: var(--color-dark) !important;
    text-align: left !important;
    white-space: nowrap;
}

.pricing-table td:nth-child(4) {
    text-align: left;
    font-size: 0.82rem;
    color: var(--color-gray);
    max-width: 240px;
}

.check-cell {
    padding: var(--space-sm) var(--space-md) !important;
}

.badge-si {
    display: inline-block;
    padding: 0.2rem 0.7rem;
    border-radius: var(--radius-full);
    background: rgba(42,139,75,0.1);
    color: var(--color-accent);
    font-size: 0.78rem;
    font-weight: 700;
}

.badge-no {
    display: inline-block;
    padding: 0.2rem 0.7rem;
    border-radius: var(--radius-full);
    background: rgba(107,114,128,0.08);
    color: var(--color-disabled);
    font-size: 0.78rem;
    font-weight: 600;
}

/* ========================================
   Registro
   ======================================== */
.registro-alert {
    display: flex;
    gap: var(--space-lg);
    align-items: flex-start;
    background: var(--bg-white);
    border-left: 3px solid var(--color-accent);
    padding: var(--space-xl);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    box-shadow: var(--shadow-md);
    margin-bottom: var(--space-2xl);
    transition: transform var(--duration-med);
}

.registro-alert:hover {
    transform: scale(1.005);
}

.registro-alert-icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: rgba(42,139,75,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--color-accent);
    flex-shrink: 0;
}

.registro-alert-content {
    flex: 1;
}

.registro-alert-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
}

.registro-alert-content p {
    font-size: 0.9rem;
    color: var(--color-gray);
    line-height: 1.7;
}

.registro-alert-content a {
    color: var(--color-accent);
    font-weight: 600;
    transition: opacity var(--duration-fast);
}

.registro-alert-content a:hover {
    opacity: 0.7;
}

.registro-form-wrap {
    background: var(--bg-white);
    padding: var(--space-md);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
}

.registro-form-wrap iframe {
    border-radius: var(--radius-lg);
    display: block;
    width: 100%;
}

@media (max-width: 640px) {
    .registro-alert { flex-direction: column; align-items: center; text-align: center; }
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-dark);
    color: var(--bg-white);
    padding: var(--space-4xl) 0 var(--space-2xl);
    border-top: 3px solid var(--color-accent);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1.5fr 1fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

@media (max-width: 900px) {
    .footer-grid { grid-template-columns: 1fr; gap: var(--space-2xl); }
}

.footer-logo {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.footer-logo i {
    font-size: 1.2rem;
    color: var(--color-accent);
}

.footer-logo span {
    font-weight: 300;
    color: var(--color-accent);
    opacity: 1;
}

.footer-tagline {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.4);
    line-height: 1.7;
}

.footer-heading {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
    letter-spacing: 0.01em;
}

.footer-contact-group {
    margin-bottom: var(--space-lg);
}

.footer-contact-group:last-child { margin-bottom: 0; }

.footer-contact-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
}

.footer-contact-group a {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
    margin-bottom: var(--space-xs);
    transition: color var(--duration-fast);
}

.footer-contact-group a:hover { color: var(--bg-white); }

.footer-contact-group a i {
    width: 16px;
    text-align: center;
    font-size: 0.8rem;
}

.social-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.social-link {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
    transition: color var(--duration-fast);
}

.social-link:hover { color: var(--bg-white); }

.social-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    transition: background var(--duration-fast);
    flex-shrink: 0;
}

.social-link:hover .social-icon { background: rgba(255,255,255,0.12); }
.social-link:hover .social-icon-fb { background: #1877F2; }
.social-link:hover .social-icon-ig { background: #E4405F; }
.social-link:hover .social-icon-tw { background: #1DA1F2; }

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255,255,255,0.06);
    font-size: 0.8rem;
    color: rgba(255,255,255,0.3);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-bottom i {
    margin-right: var(--space-xs);
    color: rgba(255,255,255,0.2);
}

/* ========================================
   Visibility helper for animations
   ======================================== */
[data-animate] {
    opacity: 0;
}

.is-visible {
    opacity: 1;
}


/* ========================================
   Sede - Ajuste de Título Largo
   ======================================== */
.sede-title {
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    /* Eliminamos el clamp gigante anterior para tener más control */
}

.sede-title-pre {
    display: block;
    font-size: 0.9rem; /* Tamaño pequeño y legible */
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-gray); /* Color suave para que no pese visualmente */
    margin-bottom: 0.3rem;
}

.sede-title-main {
    display: block;
    font-size: clamp(1.8rem, 4vw, 2.5rem); /* Reducido para que no rompa el diseño */
    font-weight: 900;
    color: var(--color-dark);
    letter-spacing: -0.02em;
    line-height: 1.1;
}

/* Ajuste específico para que el contenedor de texto no se desparrame */
.sede-text {
    flex: 1.2; /* Le damos un poco más de peso al texto frente a la imagen */
    padding: var(--space-2xl) var(--space-3xl);
    max-width: 650px;
}

/* Ajuste para móviles */
@media (max-width: 768px) {
    .sede-title-main {
        font-size: 1.6rem; /* Aún más pequeño en móviles para evitar desbordamiento */
    }
    
    .sede-title-pre {
        font-size: 0.75rem;
    }
}