:root {
    /* Paleta azul institucional original CEI San Jorge */
    --primario: #1a3a6b;
    --primario-rgb: 26, 58, 107;
    --primario-rgb: 26, 58, 107;
    --primario-dark: #0f2347;
    --primario-dark-rgb: 15, 35, 71;
    --primario-mid: #2d5fa6;
    --primario-mid-rgb: 45, 95, 166;
    --acento: #38bdf8;
    --acento-rgb: 56, 189, 248;
    --acento-dark: #0ea5e9;
    --acento-dark-rgb: 14, 165, 233;
    --acento-glow: #7dd3fc;
    --acento-glow-rgb: 125, 211, 252;
    --oscuro: #060f1e;
    --gris: #4b5563;
    --gris-light: #f0f6ff;
    --blanco: #ffffff;
    /* Alias para retrocompatibilidad */
    --azul-dark: #0f2347;
    --dorado: #f5a623;
    --dorado-dark: #d4881a;
    --rojo: #e53e3e;
}

:root.theme-yellow {
    /* Paleta solicitada con naranjas, amarillos y slate */
    --primario: #2e3a59;
    --primario-rgb: 46, 58, 89;
    --primario-dark: #1f273d;
    --primario-dark-rgb: 31, 39, 61;
    --primario-mid: #3b4c73;
    --primario-mid-rgb: 59, 76, 115;
    --acento: #f8c14a;
    --acento-rgb: 248, 193, 74;
    --acento-dark: #e8a825;
    --acento-dark-rgb: 232, 168, 37;
    --acento-glow: #ffd36a;
    --acento-glow-rgb: 255, 211, 106;
    --oscuro: #1b2234;
    --gris: #4b5563;
    --gris-light: #fffdf7;
    --blanco: #ffffff;

    --azul-dark: #1f273d;
    --dorado: #ffd36a;
    --dorado-dark: #ffb000;
    --rojo: #ff7a2f;
}

:root.theme-green {
    /* Paleta esmeralda/verde para opciones extras */
    --primario: #065f46;
    --primario-rgb: 6, 95, 70;
    --primario-dark: #022c22;
    --primario-dark-rgb: 2, 44, 34;
    --primario-mid: #059669;
    --primario-mid-rgb: 5, 150, 105;
    --acento: #10b981;
    --acento-rgb: 16, 185, 129;
    --acento-dark: #047857;
    --acento-dark-rgb: 4, 120, 87;
    --acento-glow: #34d399;
    --acento-glow-rgb: 52, 211, 153;
    --oscuro: #022c22;
    --gris: #4b5563;
    --gris-light: #f0fdf4;
    --blanco: #ffffff;

    --azul-dark: #022c22;
    --dorado: #10b981;
    --dorado-dark: #047857;
    --rojo: #059669;
}

/* ── EFECTOS BRILLOSOS GLOBALES ── */
.shine {
    position: relative;
    overflow: hidden;
}

.shine::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -75%;
    width: 50%;
    height: 200%;
    background: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.35) 50%, rgba(255, 255, 255, 0) 100%);
    transform: skewX(-20deg);
    transition: left 0.6s ease;
}

.shine:hover::after {
    left: 125%;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: #1f2937;
}

/* ── NAVBAR ── */
.navbar {
    background: linear-gradient(90deg, var(--primario-dark) 0%, var(--primario) 100%);
    padding: 0.6rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(var(--primario-dark-rgb), .5);
    border-bottom: 2px solid var(--acento);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: .7rem;
}

.navbar-brand .logo-circle {
    width: 46px;
    height: 46px;
    background: linear-gradient(135deg, var(--acento-dark), var(--acento-glow));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
    box-shadow: 0 0 14px rgba(var(--acento-rgb), .6);
}

.navbar-brand .brand-text {
    line-height: 1.1;
}

.navbar-brand .brand-text span {
    display: block;
    color: rgba(var(--acento-glow-rgb), .9);
    font-size: .72rem;
    font-weight: 400;
    letter-spacing: .05em;
    text-transform: uppercase;
}

.navbar-brand .brand-text strong {
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
}

.nav-link {
    color: rgba(255, 255, 255, .88) !important;
    font-weight: 500;
    font-size: .9rem;
    padding: .5rem .8rem !important;
    transition: color .2s;
}

.nav-link:hover {
    color: var(--acento-glow) !important;
}

.btn-campus {
    background: linear-gradient(135deg, var(--acento-dark), var(--acento));
    color: #fff !important;
    border-radius: 50px;
    padding: .45rem 1.2rem !important;
    font-weight: 700;
    transition: all .2s;
    box-shadow: 0 0 12px rgba(var(--acento-rgb), .5);
}

.btn-campus:hover {
    background: linear-gradient(135deg, var(--acento-glow), var(--acento-dark));
    transform: translateY(-1px);
    box-shadow: 0 0 20px rgba(var(--acento-glow-rgb), .7);
}

/* ── HERO ── */
#inicio {
    padding: 10rem 0 7rem;
    --background: url('https://images.unsplash.com/photo-1523050854058-8df90110c9f1?w=1920&q=80') center/cover no-repeat;
    position: relative;
    overflow: hidden;
}

#inicio::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(var(--primario-dark-rgb), .95) 0%, rgba(var(--primario-rgb), .85) 100%);
    z-index: 1;
}

#inicio .container {
    position: relative;
    z-index: 2;
}

.hero-badge {
    background: rgba(var(--acento-rgb), .2);
    border: 1px solid var(--acento);
    color: var(--acento-glow);
    border-radius: 50px;
    padding: .3rem 1rem;
    font-size: .8rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 1.2rem;
    text-shadow: 0 0 8px rgba(var(--acento-glow-rgb), .5);
}

.hero-title {
    font-size: clamp(3.5rem, 5vw, 5.2rem);
    font-weight: 900;
    color: #fff;
    line-height: 1.15;
    margin-bottom: 1.2rem;
    text-shadow: 0 2px 12px rgba(0, 0, 0, .4);
}

.hero-title .highlight {
    color: var(--acento-glow);
    text-shadow: 0 0 20px rgba(var(--acento-glow-rgb), .7);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, .88);
    margin-bottom: 2rem;
    max-width: 750px;
    line-height: 1.75;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2.5rem;
    flex-wrap: wrap;
}

.hero-stat {
    background: rgba(0, 0, 0, .25);
    border: 1px solid rgba(var(--acento-rgb), .3);
    border-radius: 12px;
    padding: .6rem 1rem;
}

.hero-stat strong {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--acento-glow);
    text-shadow: 0 0 10px rgba(var(--acento-glow-rgb), .6);
}

.hero-stat span {
    font-size: .78rem;
    color: rgba(255, 255, 255, .75);
}



/* Buttons */
.btn-primary-cei {
    background: linear-gradient(135deg, var(--acento-dark) 0%, var(--primario-mid) 100%);
    border: none;
    color: #fff;
    padding: .75rem 2rem;
    border-radius: 50px;
    font-weight: 800;
    font-size: 1rem;
    transition: all .25s;
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 0 18px rgba(var(--acento-rgb), .55), 0 4px 15px rgba(0, 0, 0, .3);
    position: relative;
    overflow: hidden;
}

.btn-primary-cei::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -75%;
    width: 50%;
    height: 200%;
    background: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, .4) 50%, rgba(255, 255, 255, 0) 100%);
    transform: skewX(-20deg);
    transition: left .5s;
}

.btn-primary-cei:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(var(--acento-glow-rgb), .75), 0 8px 25px rgba(0, 0, 0, .3);
    color: #fff;
}

.btn-primary-cei:hover::after {
    left: 125%;
}

.btn-outline-cei {
    border: 2px solid rgba(var(--acento-glow-rgb), .7);
    color: var(--acento-glow);
    padding: .73rem 1.8rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: all .2s;
    text-decoration: none;
    display: inline-block;
    background: transparent;
}

.btn-outline-cei:hover {
    border-color: var(--acento-glow);
    background: rgba(var(--acento-rgb), .15);
    color: var(--acento-glow);
    box-shadow: 0 0 14px rgba(var(--acento-glow-rgb), .3);
}

/* ── SECTION SHARED ── */
section {
    padding: 5rem 0;
}

.section-label {
    color: var(--acento-dark);
    font-weight: 700;
    font-size: .8rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    display: block;
    margin-bottom: .5rem;
    text-shadow: 0 0 8px rgba(var(--acento-rgb), .4);
}

.section-title {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 800;
    color: var(--primario);
    margin-bottom: .8rem;
}

.section-subtitle {
    color: var(--gris);
    font-size: 1rem;
    max-width: 580px;
    margin: 0 auto 3rem;
    line-height: 1.7;
}

/* ── OFERTA ACADÉMICA ── */
#oferta {
    background: var(--gris-light);
}

.carrera-card {
    background: #fff;
    border-radius: 18px;
    padding: 2rem;
    height: 100%;
    transition: transform .25s, box-shadow .25s;
    border: 1px solid #c8ddf5;
    position: relative;
    overflow: hidden;
}

.carrera-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primario), var(--acento));
}

.carrera-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(var(--primario-rgb), .15), 0 0 0 1px rgba(var(--acento-rgb), .2);
}

.carrera-icon {
    width: 58px;
    height: 58px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin-bottom: 1.2rem;
}

.carrera-card h4 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primario-dark);
    margin-bottom: .5rem;
}

.carrera-card p {
    font-size: .9rem;
    color: var(--gris);
    margin-bottom: 1.2rem;
    line-height: 1.6;
}

.badge-info {
    background: #e0f0ff;
    color: #1a5a9a;
    padding: .25rem .7rem;
    border-radius: 50px;
    font-size: .75rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: .3rem;
}

.badge-info.green {
    background: #e8f5ff;
    color: var(--primario-dark);
}

.btn-plan {
    color: var(--primario);
    border: 2px solid var(--primario);
    padding: .45rem 1.2rem;
    border-radius: 50px;
    font-size: .85rem;
    font-weight: 700;
    transition: all .2s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    margin-top: 1.2rem;
    position: relative;
    overflow: hidden;
}

.btn-plan:hover {
    background: linear-gradient(135deg, var(--primario), var(--primario-mid));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 6px 20px rgba(var(--primario-rgb), .35);
    transform: translateY(-1px);
}

/* ── POR QUÉ ELEGIRNOS ── */
#ventajas {
    background: linear-gradient(135deg, var(--oscuro) 0%, var(--primario-dark) 50%, #0a1f4a 100%);
}

.ventaja-card {
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(var(--acento-rgb), .2);
    border-radius: 18px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all .25s;
}

.ventaja-card:hover {
    background: rgba(var(--acento-rgb), .08);
    border-color: rgba(var(--acento-rgb), .5);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, .3), 0 0 20px rgba(var(--acento-rgb), .15);
}

.ventaja-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: rgba(var(--acento-rgb), .12);
    border: 2px solid var(--acento);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--acento-glow);
    margin: 0 auto 1.2rem;
    box-shadow: 0 0 16px rgba(var(--acento-rgb), .3);
}

.ventaja-card h5 {
    color: #fff;
    font-weight: 700;
    margin-bottom: .7rem;
    font-size: 1.05rem;
}

.ventaja-card p {
    color: rgba(255, 255, 255, .72);
    font-size: .9rem;
    line-height: 1.7;
}

/* ── INSTITUTO ── */
#instituto {
    background: #fff;
}

.inst-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.inst-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primario), var(--acento));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.1rem;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(var(--primario-rgb), .3);
}

.inst-item h6 {
    font-weight: 700;
    color: var(--primario-dark);
    margin-bottom: .2rem;
}

.inst-item p {
    font-size: .9rem;
    color: var(--gris);
    margin: 0;
}

.inst-img {
    border-radius: 20px;
    width: 100%;
    object-fit: cover;
    max-height: 380px;
    box-shadow: 0 20px 60px rgba(var(--primario-rgb), .2), 0 0 0 3px rgba(var(--acento-rgb), .3);
}

.number-strip {
    background: linear-gradient(135deg, var(--primario), var(--primario-dark));
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 30px rgba(var(--primario-rgb), .3);
}

.number-strip .num {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--acento-glow);
    text-shadow: 0 0 12px rgba(var(--acento-glow-rgb), .5);
}

.number-strip .lbl {
    font-size: .8rem;
    color: rgba(255, 255, 255, .75);
}

/* ── INSCRIPCIONES ── */
#inscripciones {
    background: var(--gris-light);
}

.paso-card {
    background: #fff;
    border-radius: 16px;
    padding: 1.8rem;
    text-align: center;
    border: 1px solid #c8ddf5;
    position: relative;
    transition: transform .2s, box-shadow .2s;
}

.paso-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(var(--primario-rgb), .1);
}

.paso-num {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primario), var(--primario-mid));
    color: #fff;
    font-size: 1.3rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    box-shadow: 0 0 16px rgba(var(--primario-rgb), .4);
}

.paso-card h5 {
    font-weight: 700;
    color: var(--primario-dark);
    margin-bottom: .5rem;
}

.paso-card p {
    font-size: .88rem;
    color: var(--gris);
    line-height: 1.6;
}

.req-list {
    list-style: none;
    padding: 0;
}

.req-list li {
    padding: .6rem 0;
    border-bottom: 1px solid #c8ddf5;
    display: flex;
    align-items: center;
    gap: .6rem;
    font-size: .93rem;
    color: var(--gris);
}

.req-list li i {
    color: var(--primario);
    font-size: 1rem;
}

.fecha-badge {
    background: linear-gradient(135deg, var(--primario-dark), var(--primario));
    color: #fff;
    border-radius: 14px;
    padding: 1.2rem 1.5rem;
    margin-bottom: .8rem;
    box-shadow: 0 4px 16px rgba(var(--primario-rgb), .3);
}

.fecha-badge .mes {
    font-size: .8rem;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--acento-glow);
}

.fecha-badge .dia {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
}

.fecha-badge .desc {
    font-size: .82rem;
    color: rgba(255, 255, 255, .8);
    margin-top: .2rem;
}

/* ── CONTACTO ── */
#contacto {
    background: #fff;
}

.contact-form {
    background: #fff;
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 10px 40px rgba(var(--primario-rgb), .08);
    border: 1px solid #c8ddf5;
}

.form-control,
.form-select {
    border: 1.5px solid #b8d4f0;
    border-radius: 10px;
    padding: .75rem 1rem;
    font-size: .93rem;
    transition: border-color .2s, box-shadow .2s;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primario);
    box-shadow: 0 0 0 3px rgba(var(--primario-rgb), .12);
    outline: none;
}

.form-label {
    font-weight: 600;
    color: var(--primario-dark);
    font-size: .88rem;
    margin-bottom: .35rem;
}

.contact-info-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.contact-info-item .ci-icon {
    width: 46px;
    height: 46px;
    background: linear-gradient(135deg, var(--primario), var(--acento));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.1rem;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(var(--primario-rgb), .25);
}

.contact-info-item h6 {
    font-weight: 700;
    color: var(--primario-dark);
    margin: 0 0 .15rem;
    font-size: .85rem;
}

.contact-info-item p,
.contact-info-item a {
    font-size: .9rem;
    color: var(--gris);
    text-decoration: none;
    margin: 0;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gris-light);
    color: var(--primario-dark);
    font-size: 1.1rem;
    transition: all .2s;
    margin-right: .4rem;
    border: 1px solid #c8ddf5;
}

.social-links a:hover {
    background: linear-gradient(135deg, var(--primario), var(--acento));
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(var(--primario-rgb), .3);
}

.map-placeholder {
    background: linear-gradient(135deg, #e8f4ff, #dceeff);
    border-radius: 16px;
    height: 220px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 1px solid #c8ddf5;
    margin-top: 1.5rem;
}

/* ── FOOTER ── */
footer {
    background: linear-gradient(135deg, var(--oscuro) 0%, var(--primario-dark) 100%);
    color: rgba(255, 255, 255, .75);
    padding: 3rem 0 1.5rem;
    border-top: 2px solid var(--acento);
}

footer h6 {
    color: var(--acento-glow);
    font-weight: 700;
    margin-bottom: 1rem;
    font-size: .9rem;
    letter-spacing: .05em;
    text-shadow: 0 0 8px rgba(var(--acento-glow-rgb), .3);
}

footer a {
    color: rgba(255, 255, 255, .65);
    text-decoration: none;
    font-size: .88rem;
    display: block;
    margin-bottom: .45rem;
    transition: color .2s;
}

footer a:hover {
    color: var(--acento-glow);
}

.footer-brand strong {
    color: #fff;
    font-size: 1rem;
}

.footer-divider {
    border-top: 1px solid rgba(var(--acento-rgb), .2);
    margin: 2rem 0 1.2rem;
}

.footer-bottom {
    font-size: .8rem;
    color: rgba(255, 255, 255, .5);
}

/* ── WHATSAPP FLOTANTE ── */
.wa-float {
    position: fixed;
    bottom: 1.8rem;
    right: 1.8rem;
    z-index: 9990;
}

.wa-float a {
    display: flex;
    align-items: center;
    gap: .6rem;
    background: linear-gradient(135deg, #25d366, #128c7e);
    color: #fff;
    border-radius: 50px;
    padding: .75rem 1.3rem;
    font-weight: 700;
    font-size: .9rem;
    text-decoration: none;
    box-shadow: 0 6px 24px rgba(37, 211, 102, .5);
    transition: all .25s;
    white-space: nowrap;
}

.wa-float a:hover {
    transform: translateY(-3px) scale(1.04);
    box-shadow: 0 10px 35px rgba(37, 211, 102, .65);
    color: #fff;
}

.wa-float a i {
    font-size: 1.3rem;
}

/* ── ALERT TOAST ── */
#toast {
    position: fixed;
    bottom: 6rem;
    right: 1.5rem;
    background: linear-gradient(135deg, var(--primario), var(--acento-dark));
    color: #fff;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: .9rem;
    display: none;
    z-index: 9999;
    box-shadow: 0 8px 30px rgba(var(--acento-dark-rgb), .4);
    animation: slideIn .3s ease;
}

@keyframes slideIn {
    from {
        transform: translateY(20px);
        opacity: 0
    }

    to {
        transform: translateY(0);
        opacity: 1
    }
}

/* ── RESPONSIVE ── */
@media(max-width:768px) {
    .hero-card-float {
        position: static;
        margin: .5rem 0;
    }

    .hero-stat strong {
        font-size: 1.3rem;
    }
}