/* ===== VARIABLES - Paleta con Azul #2B27F4 ===== */
:root {
    --primary: #2B27F4;
    --primary-dark: #201DBA;
    --primary-light: #5A57FF;
    --primary-glow: rgba(43, 39, 244, 0.2);

    --bg-primary: #0A0A0C;
    --bg-secondary: #111114;
    --bg-card: #16161A;
    --bg-elevated: #1C1C22;

    --text-primary: #FFFFFF;
    --text-secondary: #A0A2B5;
    --text-muted: #6B6D7C;
    --text-light: #E0E1ED;

    --border: #22222A;
    --border-light: #2C2C36;
    --border-active: var(--primary);

    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;

    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    --shadow-hover: 0 8px 30px rgba(43, 39, 244, 0.15);
    --glow: 0 0 20px rgba(43, 39, 244, 0.3);
}

/* ===== RESET MODERNO ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'SF Pro Display', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-weight: 350;
    letter-spacing: -0.02em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== TIPOGRAFÍA ELEGANTE ===== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.8rem, 6vw, 4.5rem);
    font-weight: 550;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    font-weight: 500;
}

h3 {
    font-size: 1.5rem;
    font-weight: 500;
}

p {
    color: var(--text-secondary);
    font-weight: 350;
    line-height: 1.8;
    font-size: 1.05rem;
}

/* ===== NAVBAR LUXURY ===== */
.navbar {
    background-color: rgba(10, 10, 12, 0.8) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 1.2rem 0;
}

.navbar-brand {
    font-weight: 550;
    font-size: 1.3rem;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.navbar-brand i {
    color: var(--primary);
    -webkit-text-fill-color: initial;
    margin-right: 0.5rem;
    filter: drop-shadow(0 0 10px var(--primary-glow));
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 400;
    font-size: 0.95rem;
    padding: 0.5rem 1rem !important;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary) !important;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 1rem;
    right: 1rem;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    transform: scaleX(0);
    transition: var(--transition);
}

.nav-link:hover::after {
    transform: scaleX(1);
}

/* ===== HERO SECTION CON GLOW ===== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: radial-gradient(circle at 70% 50%, var(--primary-glow) 0%, transparent 50%),
        linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 50%, var(--primary-glow) 0%, transparent 50%);
    pointer-events: none;
}

.hero-section h1 {
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease;
}

.hero-section .lead {
    font-size: 1.3rem;
    color: var(--text-secondary);
    max-width: 600px;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-image {
    position: relative;
}

.hero-image i {
    font-size: 22rem;
    color: var(--primary);
    opacity: 0.15;
    filter: drop-shadow(0 0 30px var(--primary));
    animation: float 6s ease-in-out infinite;
}

.hero-image::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 0.3;
        transform: translate(-50%, -50%) scale(1);
    }

    50% {
        opacity: 0.6;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* ===== BUTTONS CON PERSONALIDAD ===== */
.btn {
    border-radius: 8px;
    font-weight: 450;
    padding: 0.8rem 2.2rem;
    transition: var(--transition);
    border: 1px solid transparent;
    letter-spacing: 0;
    font-size: 0.95rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--primary-glow);
}

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

.btn-outline-light:hover {
    border-color: var(--primary);
    background: transparent;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1rem;
}

/* ===== SECCIONES CON ESPACIADO PERFECTO ===== */
section {
    padding: 120px 0;
    border-bottom: 1px solid var(--border);
    position: relative;
}

section:last-child {
    border-bottom: none;
}

.section-title {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 0;
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), transparent);
}

.text-center .section-title::after {
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
    font-weight: 350;
}

/* ===== TIMELINE ESTUDIOS MODERNO ===== */
.study-timeline {
    position: relative;
    padding: 2rem 0;
}

.study-timeline::before {
    content: '';
    position: absolute;
    left: 29px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, transparent, var(--primary), transparent);
}

.study-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
    animation: fadeInLeft 0.5s ease;
    animation-fill-mode: both;
}

.study-item:nth-child(1) {
    animation-delay: 0.1s;
}

.study-item:nth-child(2) {
    animation-delay: 0.2s;
}

.study-item:nth-child(3) {
    animation-delay: 0.3s;
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

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

.study-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
    z-index: 1;
}

.study-item:hover .study-icon {
    border-color: var(--primary);
    box-shadow: 0 4px 20px var(--primary-glow);
    transform: scale(1.05);
}

.study-content {
    flex: 1;
    background: var(--bg-card);
    padding: 2rem;
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: var(--transition);
}

.study-item:hover .study-content {
    border-color: var(--primary);
    box-shadow: var(--shadow-hover);
}

.study-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.study-header h5 {
    font-size: 1.3rem;
    margin: 0;
    color: var(--text-primary);
}

.study-date {
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 450;
    padding: 0.25rem 1rem;
    background: var(--primary-glow);
    border-radius: 20px;
    border: 1px solid var(--border-active);
}

.study-institution {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.study-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.study-topics {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.topic-badge {
    padding: 0.25rem 1.2rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.85rem;
    border-radius: 20px;
    transition: var(--transition);
}

.topic-badge:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-glow);
}

/* ===== SKILL CARDS CON ELEVACIÓN ===== */
.skill-card {
    background: var(--bg-card);
    padding: 2.5rem 2rem;
    text-align: center;
    border: 1px solid var(--border);
    border-radius: 20px;
    transition: var(--transition);
    height: 100%;
}

.skill-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: var(--shadow-hover);
}

.skill-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.8rem;
    color: var(--primary);
    border: 1px solid var(--border);
    border-radius: 30px;
    transition: var(--transition);
}

.skill-card:hover .skill-icon {
    border-color: var(--primary);
    background: var(--primary-glow);
    transform: scale(1.1) rotate(5deg);
}

.skill-card h5 {
    margin-bottom: 1.5rem;
    font-weight: 450;
    font-size: 1.2rem;
}

.progress {
    height: 6px;
    background: var(--border);
    border-radius: 10px;
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 10px;
    position: relative;
    overflow: hidden;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(100%);
    }
}

/* ===== TECH BADGES ELEGANTES ===== */
.tech-badge,
.security-badge {
    padding: 0.6rem 1.8rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.95rem;
    border-radius: 30px;
    transition: var(--transition);
    font-weight: 400;
}

.tech-badge:hover,
.security-badge:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-glow);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--primary-glow);
}

.security-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2rem !important;
}

/* ===== PROJECT CARDS CON FOTO ===== */
.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    transition: var(--transition);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: var(--shadow-hover);
}

.project-image {
    height: 220px;
    background: linear-gradient(135deg, var(--bg-elevated), var(--bg-card));
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.project-image::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover .project-image::before {
    opacity: 1;
    animation: rotate 10s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.project-image i {
    font-size: 5rem;
    color: var(--primary);
    opacity: 0.8;
    transition: var(--transition);
    z-index: 1;
    position: relative;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    padding: 1rem;
    z-index: 2;
    gap: 0.5rem;
}

.project-badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--primary);
    color: white;
    border-radius: 4px;
}

.project-badge.featured {
    background: var(--primary-light);
}

.project-card:hover .project-image i {
    transform: scale(1.1);
    opacity: 1;
    filter: drop-shadow(0 0 20px var(--primary));
}

.project-content {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-content h5 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-primary);
}

.project-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex: 1;
}

.project-tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-tag {
    padding: 0.3rem 1.2rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.8rem;
    border-radius: 20px;
    transition: var(--transition);
}

.tech-tag:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.project-links {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.project-links .btn {
    flex: 1;
    padding: 0.6rem;
    font-size: 0.9rem;
}

/* ===== MODALES ELEGANTES ===== */
.modal-content {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 24px;
    box-shadow: var(--shadow);
}

.modal-header {
    border-bottom: 1px solid var(--border);
    padding: 1.8rem 2rem;
}

.modal-title {
    font-weight: 500;
    letter-spacing: -0.02em;
    font-size: 1.4rem;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.modal-body {
    padding: 2rem;
}

.modal-footer {
    border-top: 1px solid var(--border);
    padding: 1.8rem 2rem;
}

.btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
    opacity: 0.6;
    transition: var(--transition);
}

.btn-close:hover {
    opacity: 1;
    transform: rotate(90deg);
}

/* ===== CARRUSEL ELEGANTE ===== */
.carousel {
    border-radius: 16px;
    overflow: hidden;
}

.carousel-item img {
    filter: brightness(0.9);
    transition: var(--transition);
}

.carousel-item:hover img {
    filter: brightness(1);
}

.carousel-indicators button {
    width: 30px;
    height: 3px;
    border-radius: 0;
    background-color: var(--text-secondary);
    opacity: 0.5;
}

.carousel-indicators button.active {
    background-color: var(--primary);
    opacity: 1;
    width: 50px;
}

.carousel-control-prev,
.carousel-control-next {
    opacity: 0;
    transition: var(--transition);
    background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.5));
}

.carousel-control-next {
    background: linear-gradient(270deg, transparent, rgba(0, 0, 0, 0.5));
}

.carousel:hover .carousel-control-prev,
.carousel:hover .carousel-control-next {
    opacity: 1;
}

/* ===== CONTACTO CON GLOW ===== */
.contact-item {
    padding: 2.5rem 2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    transition: var(--transition);
    height: 100%;
}

.contact-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.contact-item i {
    color: var(--primary);
    filter: drop-shadow(0 0 15px var(--primary-glow));
    transition: var(--transition);
}

.contact-item:hover i {
    transform: scale(1.1);
}

.contact-item h5 {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
    font-weight: 450;
}

.contact-item p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.95rem;
}

/* ===== FORMULARIO MINIMAL ===== */
.form-control {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.2rem;
    color: var(--text-primary);
    transition: var(--transition);
    font-size: 1rem;
}

.form-control:focus {
    background: var(--bg-elevated);
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
    color: var(--text-primary);
    outline: none;
}

.form-control::placeholder {
    color: var(--text-muted);
    font-weight: 350;
    font-size: 0.95rem;
}

/* ===== FOOTER ELEGANTE ===== */
footer {
    background: var(--bg-secondary) !important;
    border-top: 1px solid var(--border) !important;
    padding: 3rem 0 !important;
}

footer hr {
    border-color: var(--border) !important;
    opacity: 0.5;
    margin: 2rem 0;
}

.social-links .btn {
    width: 45px;
    height: 45px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    transition: var(--transition);
    border-radius: 50%;
}

.social-links .btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-glow);
    transform: translateY(-3px);
    box-shadow: 0 4px 15px var(--primary-glow);
}

/* ===== UTILIDADES ===== */
.bg-light {
    background-color: var(--bg-secondary) !important;
}

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

.text-white {
    color: var(--text-primary) !important;
}

.text-primary {
    color: var(--primary) !important;
}

.border-top,
.border-bottom,
.border {
    border-color: var(--border) !important;
}

/* ===== ANIMACIONES GLOBALES ===== */
.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

.slide-up {
    animation: slideUp 0.6s ease forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* ===== SCROLLBAR PERSONALIZADO ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* ===== RESPONSIVE PERFECTO ===== */
@media (max-width: 992px) {
    section {
        padding: 80px 0;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .hero-image i {
        font-size: 16rem;
    }
}

@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-image i {
        font-size: 12rem;
    }

    .study-item {
        flex-direction: column;
        gap: 1rem;
    }

    .study-timeline::before {
        left: 19px;
    }

    .study-icon {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }

    .btn-lg {
        padding: 0.8rem 1.8rem;
    }

    .project-links .btn {
        flex: 0 1 auto;
    }
}

@media (max-width: 576px) {
    .section-title {
        font-size: 1.8rem;
    }

    .hero-section .display-4 {
        font-size: 2.2rem;
    }

    .hero-image i {
        font-size: 8rem;
    }

    .study-content {
        padding: 1.5rem;
    }





}