:root {
    --main-color: #013B49;
    --secondary-color: #FFC107;
    --accent-color: #1a4f5d;
}

/* Flip Cards Mejoradas */
.flip-card {
    background-color: transparent;
    width: 100%;
    height: 300px;
    perspective: 1200px;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 56, 71, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.flip-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 56, 71, 0.2);
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    transform-style: preserve-3d;
    border-radius: 1rem;
}

.flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: 1rem;
    overflow: hidden;
}

.flip-card-front {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    display: flex;
    flex-direction: column;
}

.flip-card-front img {
    width: 100%;
    height: 65%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.flip-card-front .card-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--main-color) 0%, var(--accent-color) 100%);
    position: relative;
}

.flip-card-front .card-content h3 {
    color: white;
    font-weight: 700;
    font-size: 1.25rem;
    line-height: 1.4;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.flip-card-back {
    background: linear-gradient(135deg, var(--main-color) 0%, var(--accent-color) 100%);
    color: white;
    transform: rotateY(180deg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/*.flip-card-back::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 20px 20px;
    opacity: 0.3;
    animation: float 20s linear infinite;
}*/

@keyframes float {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(-20px, -20px);
    }
}

.flip-card-back h3 {
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.flip-card-back p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 0.75rem;
    position: relative;
    z-index: 1;
}

/* Skill Cards Mejoradas */
.skill-card {
    background: linear-gradient(135deg, var(--main-color) 0%, var(--accent-color) 100%);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 56, 71, 0.15);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), #FFD54F);
    transform: scaleX(0);
    transition: transform 0.4s ease;
    transform-origin: left;
}

.skill-card:hover::before {
    transform: scaleX(1);
}

.skill-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 56, 71, 0.25);
    border-color: rgba(255, 193, 7, 0.3);
}

.skill-card .icon-container {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 70px;
    height: 70px;
    background: rgba(255, 193, 7, 0.15);
    border-radius: 50%;
    margin-bottom: 1.5rem;
    transition: all 0.4s ease;
    position: relative;
}

.skill-card:hover .icon-container {
    background: rgba(255, 193, 7, 0.25);
    transform: rotateY(180deg) scale(1.1);
}

.skill-card .icon-container::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(45deg, var(--secondary-color), transparent);
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.skill-card:hover .icon-container::before {
    opacity: 1;
}

.skill-card .fa {
    font-size: 2rem;
    color: var(--secondary-color);
}

.skill-card p {
    color: white;
    font-size: 1rem;
    line-height: 1.6;
    text-align: center;
    position: relative;
    z-index: 1;
}

/* Download Button Mejorado */
.download-btn {
    background: linear-gradient(135deg, var(--main-color) 0%, var(--accent-color) 100%);
    border: none;
    padding: 1.25rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    color: white;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.7s ease;
}

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

.download-btn:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 30px rgba(0, 56, 71, 0.3);
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--main-color) 100%);
}

/* Contact Button */
.contact-button {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    background: linear-gradient(135deg, var(--main-color) 0%, var(--accent-color) 100%);
    color: white;
    padding: 1.25rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    border: none;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 30px rgba(0, 56, 71, 0.2);
    position: relative;
    overflow: hidden;
}

.contact-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.7s ease;
}

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

.contact-button:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 56, 71, 0.3);
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--main-color) 100%);
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.contact-button:hover .contact-icon {
    background: rgba(255, 255, 255, 0.25);
    transform: rotate(15deg);
}

/* Responsive */
@media (max-width: 768px) {
    .flip-card {
        height: 280px;
        margin-bottom: 1.5rem;
    }
    
    .flip-card-front img {
        height: 60%;
    }
    
    .skill-card {
        padding: 1.5rem;
    }
    
    .skill-card .icon-container {
        width: 60px;
        height: 60px;
    }
    
    .contact-button,
    .download-btn {
        padding: 1rem 2rem;
        font-size: 1rem;
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .flip-card {
        height: 260px;
    }
    
    .flip-card-back h3 {
        font-size: 1.25rem;
    }
    
    .flip-card-back p {
        font-size: 0.875rem;
    }
}

/* Animations */
@keyframes fade-in {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fade-in 1s ease-out;
}

.card-animate {
    animation: fade-in 0.6s ease-out forwards;
    opacity: 0;
    animation-delay: calc(var(--delay, 0) * 0.1s);
}

/* Waves y otros estilos existentes... */
.waves {
    position: absolute;
    top: -100px;
    left: 0;
    width: 100%;
    height: 100px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120'%3E%3Cpath d='M321.39,56.44c58-10.79,114.16-30.13,172-41.86,82.39-16.72,168.19-17.73,250.45-.39C823.78,31,906.67,72,985.66,92.83c70.05,18.48,146.53,26.09,214.34,3V0H0V27.35A600.21,600.21,0,0,0,321.39,56.44Z' fill='%23003847'%3E%3C/path%3E%3C/svg%3E");
    background-size: cover;
    background-repeat: no-repeat;
}

.wave {
    position: absolute;
    width: 200%;
    height: 100%;
    animation: wave 10s linear infinite;
}

#wave1 {
    z-index: 1000;
    opacity: 1;
    animation-delay: 0s;
}

#wave2 {
    z-index: 999;
    opacity: 0.5;
    animation-delay: -5s;
}

#wave3 {
    z-index: 998;
    opacity: 0.3;
    animation-delay: -2s;
}

#wave4 {
    z-index: 997;
    opacity: 0.2;
    animation-delay: -7s;
}

@keyframes wave {
    0% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(-25%);
    }
    100% {
        transform: translateX(0);
    }
}

.section-contact{
    background: linear-gradient(179deg, rgb(255, 255, 255) 0%, rgba(158, 188, 197, 1) 100%);
}

.dropdown-container {
  position: relative !important;
}

.dropdown-menu {
  position: absolute !important;
  top: calc(100% + 0.5rem) !important;
  left: 0 !important;
  min-width: 14rem !important;
  background: white !important;
  border-radius: 0.75rem !important;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1) !important;
  border: 1px solid #e5e7eb !important;
  opacity: 0 !important;
  visibility: hidden !important;
  transform: translateY(-10px) !important;
  transition: all 0.2s ease !important;
  z-index: 50 !important;
  padding: 0.5rem !important;
}

.dropdown-container:hover .dropdown-menu,
.dropdown-menu:hover {
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateY(0) !important;
}

.dropdown-menu {
  display: block !important;
}

.dropdown-item {
  display: flex !important;
  align-items: center !important;
  padding: 0.625rem 0.875rem !important;
  font-size: 0.9375rem !important;
  color: #374151 !important;
  border-radius: 0.5rem !important;
  transition: all 0.2s ease !important;
  text-decoration: none !important;
  cursor: pointer !important;
}

.dropdown-item:hover {
  background-color: #f3f4f6 !important;
  color: var(--main-color) !important;
}

.dropdown-item i {
  font-size: 0.875rem !important;
  width: 1.25rem !important;
  color: #6b7280 !important;
}