/* AAAaaHola */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --danger-color: #dc3545;
    --success-color: #198754;
    --gradient: linear-gradient(135deg, #0d6efd 0%, #0dcaf0 100%);
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --card-bg: #ffffff;
    --card-border: #dee2e6;
    --navbar-bg: #212529;
    --navbar-text: #ffffff;
    --footer-bg: #212529;
    --footer-text: #adb5bd;
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --card-bg: #1e293b;
    --card-border: #334155;
    --navbar-bg: #0f172a;
    --navbar-text: #f1f5f9;
    --footer-bg: #0f172a;
    --footer-text: #64748b;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    scroll-behavior: smooth;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-dark-subtle {
    background-color: var(--bg-secondary) !important;
    transition: background-color 0.3s ease;
}

.primary-light {
    background-color: #e7f1ff !important;
}

.theme-toggle {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 999;
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 50px;
    padding: 8px 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(13, 110, 253, 0.2);
}

.theme-toggle i {
    font-size: 1.2rem;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.theme-toggle.dark-mode i:first-child {
    display: none;
}

.theme-toggle:not(.dark-mode) i:last-child {
    display: none;
}

@media (max-width: 768px) {
    .theme-toggle {
        top: 60px;
        right: 15px;
        padding: 6px 10px;
    }
    
    .theme-toggle i {
        font-size: 1rem;
    }
}

/* Nav */
.navbar {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    background-color: var(--navbar-bg) !important;
    transition: background-color 0.3s ease;
    border-bottom: 1px solid var(--card-border);
}

.navbar-brand {
    font-size: 1.5rem;
    letter-spacing: 2px;
    color: var(--navbar-text) !important;
}

.navbar-nav .nav-link {
    margin: 0 0.5rem;
    transition: all 0.3s ease;
    position: relative;
    color: var(--navbar-text) !important;
}

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

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background: var(--gradient);
    transition: width 0.3s ease;
}

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

.navbar-toggler {
    border-color: var(--text-primary);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.55%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

[data-theme="dark"] .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28241, 245, 249, 0.55%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Hero */
.hero-section {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease;
}

.hero-title {
    animation: slideInDown 0.8s ease-out;
    color: var(--text-primary);
}

.hero-section p {
    animation: slideInUp 0.8s ease-out 0.2s both;
    color: var(--text-secondary);
}

.hero-section .btn {
    animation: slideInUp 0.8s ease-out 0.4s both;
}

.btn-primary {
    background: var(--gradient);
    border: none;
    transition: all 0.3s ease;
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(13, 110, 253, 0.3) !important;
    color: white;
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover {
    transform: translateY(-2px);
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.btn-outline-primary.large-width {
    width: 100%;
    padding: 0.75rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

/* Cards */
.skill-card {
    border: 1px solid var(--card-border);
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    background-color: var(--card-bg);
    color: var(--text-primary);
}

.skill-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(13, 110, 253, 0.15) !important;
    border-color: var(--primary-color);
}

.skill-card .card-body {
    color: var(--text-primary);
}

.skill-card .card-title {
    color: var(--primary-color);
}

.skill-card .badge {
    font-size: 0.85rem;
    padding: 0.4rem 0.8rem;
    margin-bottom: 0.25rem;
    background-color: #e7f1ff;
    color: var(--primary-color);
}

[data-theme="dark"] .skill-card .badge {
    background-color: rgba(13, 110, 253, 0.2);
    color: #93c5fd;
}

.bg-primary-light {
    background-color: #e7f1ff !important;
}

[data-theme="dark"] .bg-primary-light {
    background-color: rgba(13, 110, 253, 0.2) !important;
}

.project-card {
    border: none;
    border-radius: 0.75rem;
    overflow: hidden;
    transition: all 0.3s ease;
    background-color: var(--card-bg);
    color: var(--text-primary);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(13, 110, 253, 0.2) !important;
}

.project-card .card-header {
    background: var(--gradient) !important;
    border: none;
    padding: 1.5rem;
    color: white;
}

.project-card .card-title {
    font-size: 1.25rem;
    margin: 0;
    color: white;
}

.project-card .card-body {
    padding: 1.5rem;
    color: var(--text-secondary);
}

.project-card .card-text {
    color: var(--text-secondary);
}

.project-card .badge {
    font-size: 0.8rem;
    padding: 0.35rem 0.7rem;
    background-color: #f8f9fa;
    color: var(--text-primary);
    border: 1px solid var(--card-border);
}

[data-theme="dark"] .project-card .badge {
    background-color: rgba(13, 110, 253, 0.15);
    color: #93c5fd;
    border: 1px solid rgba(13, 110, 253, 0.3);
}

/* Contacto */
.contact-card {
    border: 1px solid var(--card-border);
    border-radius: 0.75rem;
    background-color: var(--card-bg);
}

.contact-card .card-body {
    color: var(--text-primary);
}

.contact-card .lead {
    color: var(--text-secondary);
}

footer {
    background-color: var(--footer-bg) !important;
    color: var(--footer-text);
    transition: background-color 0.3s ease;
    border-top: 1px solid var(--card-border);
}

footer p {
    color: var(--footer-text);
}

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

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .display-5 {
        font-size: 1.8rem;
    }

    .hero-section {
        min-height: 80vh;
        padding: 2rem 0;
    }

    .btn {
        font-size: 0.95rem;
        padding: 0.6rem 1.5rem;
    }

    .skill-card,
    .project-card {
        margin-bottom: 1rem;
    }

    .navbar-nav .nav-link {
        margin: 0.25rem 0;
    }

    .navbar-nav .nav-link::after {
        display: none;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .display-5 {
        font-size: 1.5rem;
    }

    .card-body {
        padding: 1rem;
    }

    .btn-lg {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }

    .project-card .card-header {
        padding: 1rem;
    }

    .navbar-brand {
        font-size: 1.25rem;
    }
}