/* Estilos generales */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: #1C1C1C;
    color: #E0E0E0;
    margin: 0;
    padding: 0;
    padding-top: 80px;
    line-height: 1.6;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* Animaciones */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease-out;
}

/* Touch-friendly styles */
.button, .project-card, .skill-item, .contact-method, .social-links a, .submit-btn {
    -webkit-tap-highlight-color: rgba(255, 0, 0, 0.2);
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    cursor: pointer;
}

/* Allow text selection in form inputs */
input, textarea {
    -webkit-user-select: text;
    -khtml-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

/* Encabezado */
header {
    background-color: #151515;
    padding: 15px 0;
    border-bottom: 3px solid #FF0000;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

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

.logo {
    color: #FF0000;
    font-size: 24px;
    font-weight: bold;
    margin: 0;
}

/* Mobile menu button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
    min-width: 44px;
    min-height: 44px;
    justify-content: center;
    align-items: center;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background-color: #E0E0E0;
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
    display: block;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
    transform: scale(0);
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Mobile menu button touch feedback */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
        cursor: pointer;
        touch-action: manipulation;
        -webkit-tap-highlight-color: rgba(255, 0, 0, 0.2);
        -webkit-touch-callout: none;
        -webkit-user-select: none;
        -khtml-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
    }
    
    .mobile-menu-btn:active {
        transform: scale(0.95);
        transition: transform 0.1s ease;
    }
    
    .mobile-menu-btn:active span {
        background-color: #FF0000;
    }
    
    .mobile-menu-btn:focus {
        outline: 2px solid rgba(255, 0, 0, 0.5);
        outline-offset: 2px;
    }
}

/* Menu Header */
.menu-header {
    display: none;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 2px solid rgba(255, 0, 0, 0.3);
    margin-bottom: 20px;
    background: linear-gradient(90deg, rgba(255, 0, 0, 0.1), transparent);
}

.menu-header h3 {
    color: #FF0000;
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0;
    text-shadow: 0 0 10px rgba(255, 0, 0, 0.3);
}

.menu-close-btn {
    background: rgba(255, 0, 0, 0.1);
    border: 1px solid rgba(255, 0, 0, 0.3);
    color: #FF0000;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: all 0.3s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.menu-close-btn:hover {
    background: rgba(255, 0, 0, 0.2);
    transform: rotate(90deg);
    box-shadow: 0 0 15px rgba(255, 0, 0, 0.4);
}

.nav-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 30px;
}

.nav-menu ul li a {
    text-decoration: none;
    color: #E0E0E0;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 5px 0;
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-menu ul li a i {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.nav-menu ul li a span {
    flex: 1;
}

.nav-menu ul li a:hover {
    color: #FF0000;
}

.nav-menu ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #FF0000;
    transition: width 0.3s ease;
}

.nav-menu ul li a:hover::after {
    width: 100%;
}

/* Sección Hero */
#hero {
    text-align: center;
    padding: 120px 20px;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 0, 0, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 0, 0, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(255, 0, 0, 0.08) 0%, transparent 50%),
        linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0f0f0f 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

#hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(45deg, transparent 30%, rgba(255, 0, 0, 0.03) 50%, transparent 70%),
        linear-gradient(-45deg, transparent 30%, rgba(255, 0, 0, 0.02) 50%, transparent 70%);
    animation: heroShimmer 8s ease-in-out infinite;
    pointer-events: none;
}

@keyframes heroShimmer {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
}

#hero h2 {
    color: #FF0000;
    font-size: 4rem;
    margin-bottom: 25px;
    font-weight: 700;
    text-shadow: 0 0 30px rgba(255, 0, 0, 0.3);
    position: relative;
    z-index: 2;
    background: linear-gradient(45deg, #FF0000, #FF4444, #FF0000);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease-in-out infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

#hero p {
    font-size: 1.4rem;
    margin-bottom: 50px;
    max-width: 700px;
    color: #D0D0D0;
    line-height: 1.8;
    position: relative;
    z-index: 2;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.button {
    display: inline-block;
    background: linear-gradient(45deg, #FF0000, #FF3333, #FF0000);
    background-size: 200% 200%;
    color: #FFFFFF;
    padding: 18px 40px;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    font-weight: 600;
    font-size: 1.2rem;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    z-index: 2;
    box-shadow: 
        0 8px 25px rgba(255, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
    z-index: -1;
}

.button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    transition: all 0.4s ease;
    transform: translate(-50%, -50%);
    z-index: -1;
}

.button:hover {
    background: linear-gradient(45deg, #FF3333, #FF0000, #FF3333);
    transform: translateY(-5px) scale(1.05);
    box-shadow: 
        0 15px 35px rgba(255, 0, 0, 0.4),
        0 5px 15px rgba(255, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    animation: buttonPulse 2s ease-in-out infinite;
}

@keyframes buttonPulse {
    0%, 100% { 
        box-shadow: 
            0 15px 35px rgba(255, 0, 0, 0.4),
            0 5px 15px rgba(255, 0, 0, 0.2),
            inset 0 1px 0 rgba(255, 255, 255, 0.3);
    }
    50% { 
        box-shadow: 
            0 20px 40px rgba(255, 0, 0, 0.5),
            0 8px 20px rgba(255, 0, 0, 0.3),
            inset 0 1px 0 rgba(255, 255, 255, 0.4);
    }
}

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

.button:hover::after {
    width: 300px;
    height: 300px;
}

/* Sobre mí */
#about {
    padding: 80px 20px;
    background-color: #101010;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text {
    text-align: left;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: #C0C0C0;
}

.about-text strong {
    color: #FF0000;
    font-weight: 500;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.stat {
    text-align: center;
    padding: 20px;
    background-color: #2C2C2C;
    border-radius: 10px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.stat:hover {
    border-color: #FF0000;
    transform: translateY(-5px);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #FF0000;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: #A0A0A0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.about-image img {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid #FF0000;
    transition: transform 0.3s ease;
}

.about-image img:hover {
    transform: scale(1.05);
}

/* Proyectos */
#projects {
    text-align: center;
    padding: 80px 20px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.project-card {
    background: linear-gradient(145deg, #2C2C2C, #1F1F1F);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 2px solid transparent;
    position: relative;
    box-shadow: 
        0 10px 30px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 0, 0, 0.1) 0%, transparent 50%, rgba(255, 0, 0, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}

.project-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 
        0 25px 50px rgba(255, 0, 0, 0.4),
        0 10px 20px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    border-color: #FF0000;
}

.project-card:hover::before {
    opacity: 1;
}

.project-image {
    position: relative;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-links {
    display: flex;
    gap: 20px;
}

.project-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: #FF0000;
    color: white;
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.project-link:hover {
    background-color: #D00000;
    transform: scale(1.1);
}

.project-content {
    padding: 30px;
    text-align: left;
    position: relative;
    z-index: 2;
}

.project-content h3 {
    color: #FF0000;
    margin-bottom: 15px;
    font-size: 1.4rem;
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    background: linear-gradient(45deg, #FF0000, #FF4444);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.project-content p {
    color: #D0D0D0;
    margin-bottom: 25px;
    line-height: 1.7;
    font-size: 1rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-tag {
    background: linear-gradient(45deg, #FF0000, #FF3333);
    color: white;
    padding: 6px 14px;
    border-radius: 25px;
    font-size: 0.8rem;
    font-weight: 500;
    box-shadow: 
        0 2px 8px rgba(255, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.tech-tag:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 4px 12px rgba(255, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

/* Habilidades */
#skills {
    text-align: center;
    padding: 80px 20px;
    background-color: #101010;
}

.skills-container {
    max-width: 1000px;
    margin: 0 auto;
    margin-top: 50px;
}

.skill-category {
    margin-bottom: 50px;
}

.skill-category h3 {
    color: #FF0000;
    font-size: 1.5rem;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.skill-category h3 i {
    font-size: 1.8rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 15px;
    background: linear-gradient(145deg, #2C2C2C, #1F1F1F);
    padding: 25px;
    border-radius: 15px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
    box-shadow: 
        0 8px 25px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.skill-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 0, 0, 0.1), transparent);
    transition: left 0.6s ease;
}

.skill-item:hover {
    border-color: #FF0000;
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 15px 35px rgba(255, 0, 0, 0.3),
        0 5px 15px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.skill-item:hover::before {
    left: 100%;
}

.skill-item i {
    font-size: 2.2rem;
    color: #FF0000;
    width: 45px;
    text-align: center;
    text-shadow: 0 0 10px rgba(255, 0, 0, 0.3);
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
}

.skill-item:hover i {
    transform: scale(1.1);
    text-shadow: 0 0 20px rgba(255, 0, 0, 0.5);
}

.skill-item span {
    font-weight: 500;
    color: #E0E0E0;
    font-size: 1rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 2;
}

/* Contacto */
#contact {
    padding: 100px 20px;
    background: 
        radial-gradient(circle at 30% 20%, rgba(255, 0, 0, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(255, 0, 0, 0.03) 0%, transparent 50%),
        linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 50%, #1a1a1a 100%);
    position: relative;
}

#contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(45deg, transparent 30%, rgba(255, 0, 0, 0.02) 50%, transparent 70%);
    pointer-events: none;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info {
    text-align: left;
}

.contact-info h3 {
    color: #FF0000;
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.contact-info p {
    color: #C0C0C0;
    margin-bottom: 40px;
    font-size: 1.1rem;
    line-height: 1.6;
}

.contact-methods {
    margin-bottom: 40px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
    padding: 20px;
    background-color: #2C2C2C;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.contact-method:hover {
    background-color: #3C3C3C;
    transform: translateX(10px);
}

.contact-method i {
    font-size: 1.5rem;
    color: #FF0000;
    width: 30px;
    text-align: center;
}

.contact-method h4 {
    color: #E0E0E0;
    margin: 0 0 5px 0;
    font-size: 1.1rem;
}

.contact-method p {
    color: #A0A0A0;
    margin: 0;
    font-size: 0.9rem;
}

.social-links {
    display: flex;
    gap: 20px;
    justify-content: flex-start;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: #2C2C2C;
    color: #E0E0E0;
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.2rem;
}

.social-links a:hover {
    background-color: #FF0000;
    color: white;
    transform: translateY(-5px);
}

.contact-form {
    background: linear-gradient(145deg, #2C2C2C, #1F1F1F);
    padding: 50px;
    border-radius: 20px;
    text-align: left;
    position: relative;
    z-index: 2;
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 0, 0, 0.1);
}

.contact-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 0, 0, 0.05) 0%, transparent 50%, rgba(255, 0, 0, 0.02) 100%);
    border-radius: 20px;
    z-index: -1;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    color: #E0E0E0;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 18px;
    border: 2px solid #3C3C3C;
    border-radius: 12px;
    background: linear-gradient(145deg, #1C1C1C, #0F0F0F);
    color: #E0E0E0;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 
        inset 0 2px 4px rgba(0, 0, 0, 0.3),
        0 1px 0 rgba(255, 255, 255, 0.05);
    position: relative;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #FF0000;
    box-shadow: 
        inset 0 2px 4px rgba(0, 0, 0, 0.3),
        0 0 0 3px rgba(255, 0, 0, 0.1),
        0 0 20px rgba(255, 0, 0, 0.2);
    transform: translateY(-2px);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-btn {
    width: 100%;
    background: linear-gradient(45deg, #FF0000, #FF3333, #FF0000);
    background-size: 200% 200%;
    color: white;
    padding: 18px;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    box-shadow: 
        0 8px 25px rgba(255, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.submit-btn:hover {
    background: linear-gradient(45deg, #FF3333, #FF0000, #FF3333);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        0 12px 30px rgba(255, 0, 0, 0.4),
        0 5px 15px rgba(255, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    animation: submitPulse 2s ease-in-out infinite;
}

@keyframes submitPulse {
    0%, 100% { 
        box-shadow: 
            0 12px 30px rgba(255, 0, 0, 0.4),
            0 5px 15px rgba(255, 0, 0, 0.2),
            inset 0 1px 0 rgba(255, 255, 255, 0.3);
    }
    50% { 
        box-shadow: 
            0 15px 35px rgba(255, 0, 0, 0.5),
            0 8px 20px rgba(255, 0, 0, 0.3),
            inset 0 1px 0 rgba(255, 255, 255, 0.4);
    }
}

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

.submit-btn:disabled {
    background: linear-gradient(45deg, #666, #888);
    cursor: not-allowed;
    transform: none;
    animation: none;
}

.submit-btn:disabled:hover {
    transform: none;
    box-shadow: 0 8px 25px rgba(102, 102, 102, 0.3);
}

.btn-loading {
    display: none;
}

/* Mobile-specific button improvements */
@media (max-width: 768px) {
    .submit-btn {
        min-height: 48px;
        font-size: 1rem;
        font-weight: 600;
        -webkit-tap-highlight-color: rgba(255, 0, 0, 0.2);
        -webkit-touch-callout: none;
        -webkit-user-select: none;
        user-select: none;
        cursor: pointer;
        touch-action: manipulation;
        -webkit-touch-callout: none;
        -webkit-user-select: none;
        -khtml-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
    }
    
    .submit-btn:active {
        transform: scale(0.98);
        transition: transform 0.1s ease;
    }
    
    .submit-btn:disabled:active {
        transform: none;
    }
    
    /* Ensure button is clickable on mobile */
    .submit-btn:focus {
        outline: 2px solid rgba(255, 0, 0, 0.5);
        outline-offset: 2px;
    }
    
    .btn-loading {
        display: none;
        font-size: 0.9rem;
    }
    
    .btn-text {
        display: inline;
    }
}

/* Footer */
footer {
    background-color: #151515;
    border-top: 3px solid #FF0000;
    padding: 60px 20px 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-info h3 {
    color: #FF0000;
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.footer-info p {
    color: #A0A0A0;
    line-height: 1.6;
}

.footer-links h4,
.footer-social h4 {
    color: #E0E0E0;
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #A0A0A0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #FF0000;
}

.footer-social .social-links {
    justify-content: flex-start;
}

.footer-bottom {
    border-top: 1px solid #3C3C3C;
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    color: #A0A0A0;
    margin: 5px 0;
}

.footer-bottom i {
    color: #FF0000;
}

/* Desktop Enhancements */
@media (min-width: 1025px) {
    /* Enhanced hover effects for desktop */
    .project-card:hover {
        transform: translateY(-20px) scale(1.03);
        box-shadow: 
            0 30px 60px rgba(255, 0, 0, 0.4),
            0 15px 30px rgba(0, 0, 0, 0.3),
            inset 0 1px 0 rgba(255, 255, 255, 0.2);
    }
    
    .skill-item:hover {
        transform: translateY(-10px) scale(1.05);
        box-shadow: 
            0 20px 40px rgba(255, 0, 0, 0.3),
            0 8px 20px rgba(0, 0, 0, 0.2),
            inset 0 1px 0 rgba(255, 255, 255, 0.2);
    }
    
    .button:hover {
        transform: translateY(-8px) scale(1.08);
    }
    
    .submit-btn:hover {
        transform: translateY(-5px) scale(1.05);
    }
    
    /* Enhanced typography for desktop */
    #hero h2 {
        font-size: 4.5rem;
    }
    
    #hero p {
        font-size: 1.5rem;
    }
    
    /* Better spacing for desktop */
    .container {
        max-width: 1400px;
    }
    
    .grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 50px;
    }
    
    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 25px;
    }
    
    /* Enhanced contact form for desktop */
    .contact-content {
        gap: 80px;
    }
    
    .contact-form {
        padding: 60px;
    }
}

/* Responsive Design */

/* Tablet Landscape */
@media (max-width: 1024px) {
    .container {
        width: 95%;
    }
    
    #hero h2 {
        font-size: 2.5rem;
    }
    
    .about-content {
        gap: 40px;
    }
    
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    
    .grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

/* Tablet Portrait */
@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }
    
    .container {
        width: 95%;
    }
    
    /* Mobile Menu */
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: linear-gradient(135deg, #1C1C1C, #151515);
        box-shadow: 2px 0 20px rgba(255, 0, 0, 0.2);
        border-right: 2px solid rgba(255, 0, 0, 0.3);
        transition: left 0.3s ease;
        z-index: 999;
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    /* Menu overlay */
    .menu-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.8);
        z-index: 998;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .menu-overlay.active {
        opacity: 1;
        visibility: visible;
    }
    
    .menu-header {
        display: flex;
    }
    
    .nav-menu ul {
        flex-direction: column;
        padding: 0 20px;
        gap: 0;
    }
    
    .nav-menu ul li {
        border-bottom: 1px solid rgba(255, 0, 0, 0.2);
        margin: 0 10px;
    }
    
    .nav-menu ul li:last-child {
        border-bottom: none;
    }
    
    .nav-menu ul li a {
        font-size: 1.1rem;
        padding: 20px 15px;
        display: flex;
        align-items: center;
        gap: 15px;
        color: #E0E0E0;
        -webkit-tap-highlight-color: rgba(255, 0, 0, 0.2);
        -webkit-touch-callout: none;
        -webkit-user-select: none;
        user-select: none;
        min-height: 60px;
        transition: all 0.3s ease;
        border-radius: 8px;
        margin: 5px 0;
        position: relative;
        overflow: hidden;
    }
    
    .nav-menu ul li a::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 0, 0, 0.1), transparent);
        transition: left 0.5s ease;
    }
    
    .nav-menu ul li a i {
        font-size: 1.3rem;
        width: 25px;
        text-align: center;
        color: #FF0000;
        transition: all 0.3s ease;
    }
    
    .nav-menu ul li a:hover {
        background: rgba(255, 0, 0, 0.1);
        color: #FF0000;
        transform: translateX(5px);
        box-shadow: 0 5px 15px rgba(255, 0, 0, 0.2);
    }
    
    .nav-menu ul li a:hover::before {
        left: 100%;
    }
    
    .nav-menu ul li a:hover i {
        transform: scale(1.1);
        text-shadow: 0 0 10px rgba(255, 0, 0, 0.5);
    }
    
    .nav-menu ul li a:active {
        background-color: rgba(255, 0, 0, 0.2);
        transform: scale(0.98);
        transition: all 0.1s ease;
        box-shadow: inset 0 2px 5px rgba(255, 0, 0, 0.3);
    }
    
    /* Hero - Mobile Optimized */
    #hero {
        padding: 60px 15px;
        min-height: calc(100vh - 70px);
        background: 
            radial-gradient(circle at 50% 30%, rgba(255, 0, 0, 0.08) 0%, transparent 60%),
            linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0f0f0f 100%);
    }
    
    #hero h2 {
        font-size: 2.5rem;
        margin-bottom: 20px;
        line-height: 1.2;
        text-shadow: 0 0 20px rgba(255, 0, 0, 0.2);
    }
    
    #hero p {
        font-size: 1.2rem;
        margin-bottom: 35px;
        line-height: 1.6;
        max-width: 100%;
    }
    
    .button {
        padding: 15px 30px;
        font-size: 1.1rem;
        border-radius: 30px;
        box-shadow: 0 6px 20px rgba(255, 0, 0, 0.3);
    }
    
    /* About - Mobile Optimized */
    .about-content {
        grid-template-columns: 1fr;
        gap: 35px;
        text-align: center;
    }
    
    .about-text {
        text-align: center;
    }
    
    .about-text p {
        font-size: 1rem;
        line-height: 1.7;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-top: 30px;
    }
    
    .stat {
        padding: 20px 15px;
        border-radius: 15px;
    }
    
    .stat-number {
        font-size: 2.2rem;
    }
    
    .about-image img {
        width: 180px;
        height: 180px;
        border: 3px solid #FF0000;
    }
    
    /* Projects - Mobile Optimized */
    .grid {
        grid-template-columns: 1fr;
        gap: 25px;
        margin-top: 40px;
    }
    
    .project-card {
        border-radius: 15px;
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    }
    
    .project-content {
        padding: 25px 20px;
    }
    
    .project-content h3 {
        font-size: 1.3rem;
        margin-bottom: 12px;
    }
    
    .project-content p {
        font-size: 0.95rem;
        line-height: 1.6;
    }
    
    .tech-tag {
        padding: 5px 12px;
        font-size: 0.75rem;
    }
    
    /* Skills - Mobile Optimized */
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .skill-item {
        padding: 18px 20px;
        border-radius: 12px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }
    
    .skill-item i {
        font-size: 1.8rem;
        width: 35px;
    }
    
    .skill-item span {
        font-size: 0.95rem;
    }
    
    /* Contact - Mobile Optimized */
    .contact-content {
        grid-template-columns: 1fr;
        gap: 35px;
    }
    
    .contact-info {
        text-align: center;
    }
    
    .contact-info h3 {
        font-size: 1.6rem;
        margin-bottom: 15px;
    }
    
    .contact-info p {
        font-size: 1rem;
        margin-bottom: 30px;
    }
    
    .contact-method {
        padding: 18px 15px;
        margin-bottom: 20px;
        border-radius: 12px;
    }
    
    .contact-method i {
        font-size: 1.3rem;
        width: 25px;
    }
    
    .contact-method h4 {
        font-size: 1rem;
    }
    
    .contact-method p {
        font-size: 0.85rem;
    }
    
    .social-links {
        justify-content: center;
        gap: 18px;
    }
    
    .social-links a {
        width: 48px;
        height: 48px;
        font-size: 1.1rem;
    }
    
    .contact-form {
        padding: 25px 20px;
        border-radius: 15px;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 15px;
        border-radius: 10px;
        font-size: 0.95rem;
    }
    
    .submit-btn {
        padding: 15px;
        font-size: 1rem;
        border-radius: 10px;
    }
    
    /* Footer - Mobile Optimized */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 25px;
        text-align: center;
    }
    
    .footer-social .social-links {
        justify-content: center;
    }
}

/* Mobile */
@media (max-width: 480px) {
    body {
        padding-top: 60px;
    }
    
    header {
        padding: 10px 0;
    }
    
    .logo {
        font-size: 20px;
    }
    
    .nav-menu {
        top: 60px;
        height: calc(100vh - 60px);
    }
    
    /* Hero - Small Mobile Optimized */
    #hero {
        padding: 50px 12px;
        min-height: calc(100vh - 60px);
        background: 
            radial-gradient(circle at 50% 25%, rgba(255, 0, 0, 0.06) 0%, transparent 70%),
            linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 50%, #0f0f0f 100%);
    }
    
    #hero h2 {
        font-size: 2rem;
        line-height: 1.1;
        margin-bottom: 15px;
        text-shadow: 0 0 15px rgba(255, 0, 0, 0.15);
    }
    
    #hero p {
        font-size: 1.1rem;
        margin-bottom: 30px;
        line-height: 1.5;
        max-width: 100%;
    }
    
    .button {
        padding: 12px 25px;
        font-size: 1rem;
        border-radius: 25px;
        box-shadow: 0 4px 15px rgba(255, 0, 0, 0.25);
    }
    
    /* About - Small Mobile Optimized */
    .about-content {
        gap: 30px;
    }
    
    .about-text p {
        font-size: 0.95rem;
        line-height: 1.6;
    }
    
    .about-stats {
        gap: 12px;
        margin-top: 25px;
    }
    
    .stat {
        padding: 18px 12px;
        border-radius: 12px;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
    
    .about-image img {
        width: 140px;
        height: 140px;
        border: 2px solid #FF0000;
    }
    
    /* Projects - Small Mobile Optimized */
    .grid {
        gap: 20px;
        margin-top: 35px;
    }
    
    .project-card {
        border-radius: 12px;
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    }
    
    .project-content {
        padding: 20px 18px;
    }
    
    .project-content h3 {
        font-size: 1.2rem;
        margin-bottom: 10px;
    }
    
    .project-content p {
        font-size: 0.9rem;
        line-height: 1.5;
    }
    
    .tech-tag {
        padding: 4px 10px;
        font-size: 0.7rem;
    }
    
    /* Skills - Small Mobile Optimized */
    .skills-grid {
        gap: 10px;
    }
    
    .skill-item {
        padding: 15px 18px;
        border-radius: 10px;
        box-shadow: 0 3px 12px rgba(0, 0, 0, 0.08);
    }
    
    .skill-item i {
        font-size: 1.6rem;
        width: 30px;
    }
    
    .skill-item span {
        font-size: 0.9rem;
    }
    
    /* Contact - Small Mobile Optimized */
    .contact-content {
        gap: 30px;
    }
    
    .contact-info h3 {
        font-size: 1.4rem;
        margin-bottom: 12px;
    }
    
    .contact-info p {
        font-size: 0.95rem;
        margin-bottom: 25px;
    }
    
    .contact-method {
        padding: 15px 12px;
        margin-bottom: 15px;
        border-radius: 10px;
    }
    
    .contact-method i {
        font-size: 1.2rem;
        width: 22px;
    }
    
    .contact-method h4 {
        font-size: 0.95rem;
    }
    
    .contact-method p {
        font-size: 0.8rem;
    }
    
    .social-links {
        gap: 15px;
    }
    
    .social-links a {
        width: 44px;
        height: 44px;
        font-size: 1rem;
    }
    
    .contact-form {
        padding: 20px 18px;
        border-radius: 12px;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 14px;
        border-radius: 8px;
        font-size: 0.9rem;
    }
    
    .submit-btn {
        padding: 14px;
        font-size: 0.95rem;
        border-radius: 8px;
    }
    
    /* Footer - Small Mobile Optimized */
    .footer-content {
        gap: 20px;
    }
}

/* Extra Small Mobile */
@media (max-width: 360px) {
    .container {
        width: 98%;
    }
    
    /* Hero - Extra Small Mobile */
    #hero {
        padding: 40px 10px;
    }
    
    #hero h2 {
        font-size: 1.7rem;
        line-height: 1.1;
        margin-bottom: 12px;
    }
    
    #hero p {
        font-size: 1rem;
        margin-bottom: 25px;
        line-height: 1.4;
    }
    
    .button {
        padding: 10px 20px;
        font-size: 0.95rem;
        border-radius: 20px;
    }
    
    /* About - Extra Small Mobile */
    .about-content {
        gap: 25px;
    }
    
    .about-text p {
        font-size: 0.9rem;
        line-height: 1.5;
    }
    
    .about-stats {
        gap: 10px;
        margin-top: 20px;
    }
    
    .stat {
        padding: 15px 10px;
        border-radius: 10px;
    }
    
    .stat-number {
        font-size: 1.6rem;
    }
    
    .stat-label {
        font-size: 0.7rem;
    }
    
    .about-image img {
        width: 120px;
        height: 120px;
        border: 2px solid #FF0000;
    }
    
    /* Projects - Extra Small Mobile */
    .grid {
        gap: 18px;
        margin-top: 30px;
    }
    
    .project-content {
        padding: 18px 15px;
    }
    
    .project-content h3 {
        font-size: 1.1rem;
        margin-bottom: 8px;
    }
    
    .project-content p {
        font-size: 0.85rem;
        line-height: 1.4;
    }
    
    .tech-tag {
        padding: 3px 8px;
        font-size: 0.65rem;
    }
    
    /* Skills - Extra Small Mobile */
    .skill-item {
        padding: 12px 15px;
        border-radius: 8px;
    }
    
    .skill-item i {
        font-size: 1.4rem;
        width: 25px;
    }
    
    .skill-item span {
        font-size: 0.85rem;
    }
    
    /* Contact - Extra Small Mobile */
    .contact-content {
        gap: 25px;
    }
    
    .contact-info h3 {
        font-size: 1.3rem;
        margin-bottom: 10px;
    }
    
    .contact-info p {
        font-size: 0.9rem;
        margin-bottom: 20px;
    }
    
    .contact-method {
        padding: 12px 10px;
        margin-bottom: 12px;
        border-radius: 8px;
    }
    
    .contact-method i {
        font-size: 1.1rem;
        width: 20px;
    }
    
    .contact-method h4 {
        font-size: 0.9rem;
    }
    
    .contact-method p {
        font-size: 0.75rem;
    }
    
    .social-links {
        gap: 12px;
    }
    
    .social-links a {
        width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }
    
    .contact-form {
        padding: 18px 15px;
        border-radius: 10px;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 12px;
        border-radius: 6px;
        font-size: 0.85rem;
    }
    
    .submit-btn {
        padding: 12px;
        font-size: 0.9rem;
        border-radius: 6px;
    }
    
    /* Footer - Extra Small Mobile */
    .footer-content {
        gap: 18px;
    }
}