/* ============================================
   Tiempo de Vida - Custom Styles
   Blog sobre reducción de tiempos de espera
   en diagnósticos de cáncer de mama
   ============================================ */

/* ============================================
   CSS VARIABLES - Color Palette
   ============================================ */
:root {
    /* Color Palette */
    --color-primary: #E91E63;        /* Rosa esperanza */
    --color-secondary: #4A90E2;      /* Azul serenidad */
    --color-neutral-bg: #F2F2F2;     /* Gris suave */
    --color-base: #FFFFFF;           /* Blanco */
    --color-accent: #4CAF50;         /* Verde esperanza */

    /* Additional Colors */
    --color-dark: #212529;
    --color-light: #F8F9FA;
    --color-muted: #6C757D;

    /* Typography */
    --font-primary: 'Poppins', system-ui, -apple-system, Arial, sans-serif;
    --font-secondary: 'Lato', system-ui, -apple-system, Arial, sans-serif;

    /* Font Sizes */
    --font-base: 16px;
    --line-height: 1.6;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-base: all 0.3s ease;
}

/* ============================================
   BASE STYLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-secondary);
    font-size: var(--font-base);
    line-height: var(--line-height);
    color: var(--color-dark);
    background-color: var(--color-base);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-dark);
}

p {
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition-base);
}

a:hover {
    color: var(--color-secondary);
}

a:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ============================================
   BOOTSTRAP OVERRIDES
   ============================================ */
.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    font-family: var(--font-primary);
    font-weight: 500;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: #C2185B;
    border-color: #C2185B;
}

.btn-outline-primary {
    color: var(--color-primary);
    border-color: var(--color-primary);
    font-family: var(--font-primary);
    font-weight: 500;
}

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

.btn-secondary {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
}

.btn-secondary:hover {
    background-color: #3A7BC8;
    border-color: #3A7BC8;
}

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

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

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

.bg-light {
    background-color: var(--color-neutral-bg) !important;
}

.badge {
    font-weight: 500;
    padding: 0.4em 0.8em;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    padding: 1rem 0;
    transition: var(--transition-base);
}

.navbar-brand {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-dark) !important;
    transition: var(--transition-base);
}

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

.navbar-brand i {
    color: var(--color-primary);
    font-size: 1.8rem;
}

.nav-link {
    font-family: var(--font-primary);
    font-weight: 500;
    color: var(--color-dark) !important;
    padding: 0.5rem 1rem !important;
    transition: var(--transition-base);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 70%;
}

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

/* Navbar Scroll Effect */
.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.98) !important;
    box-shadow: var(--shadow-md);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
    padding: 4rem 0;
    background: linear-gradient(135deg, #FFF5F8 0%, #E3F2FD 100%);
}

.hero-section h1 {
    color: var(--color-dark);
    margin-bottom: 1.5rem;
}

.hero-section .lead {
    color: var(--color-muted);
    font-size: 1.25rem;
}

.min-vh-75 {
    min-height: 75vh;
    display: flex;
    align-items: center;
}

/* ============================================
   PLACEHOLDER IMAGES
   ============================================ */
.hero-image-placeholder,
.blog-card-image,
.infographic-placeholder,
.author-image-placeholder,
.video-placeholder {
    background: linear-gradient(135deg, var(--color-neutral-bg) 0%, #E8E8E8 100%);
    border: 2px dashed #CCCCCC;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image-placeholder {
    height: 400px;
    width: 100%;
}

.blog-card-image {
    height: 250px;
    width: 100%;
}

.infographic-placeholder {
    min-height: 600px;
    width: 100%;
}

.author-image-placeholder {
    width: 250px;
    height: 250px;
}

.video-placeholder {
    min-height: 400px;
}

.placeholder-content {
    text-align: center;
    padding: 2rem;
    color: var(--color-muted);
}

.placeholder-content i {
    color: #CCCCCC;
    margin-bottom: 1rem;
}

/* ============================================
   INFO CARDS
   ============================================ */
.info-card {
    background-color: var(--color-base);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    height: 100%;
    border: 1px solid transparent;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.icon-circle {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #FF6B9D 0%, #5FA4F0 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.icon-circle i {
    color: white;
    filter: drop-shadow(0 2px 3px rgba(0, 0, 0, 0.2));
}

/* ============================================
   OBJECTIVES LIST
   ============================================ */
.objectives-list {
    list-style: none;
    padding: 0;
}

.objectives-list li {
    font-size: 1.1rem;
    padding: 0.75rem 0;
}

.objectives-list i {
    font-size: 1.3rem;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, #FF6B9D 0%, #5FA4F0 100%);
    border-radius: var(--radius-xl);
    margin: 3rem 0;
}

.cta-section h2,
.cta-section h3,
.cta-section p,
.cta-section .btn {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.bg-gradient-primary {
    background: linear-gradient(135deg, #FF6B9D 0%, #5FA4F0 100%);
}

.bg-gradient-primary h2,
.bg-gradient-primary h3,
.bg-gradient-primary p,
.bg-gradient-primary .btn {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

/* ============================================
   BLOG CARDS
   ============================================ */
.blog-card {
    background-color: var(--color-base);
    border: 1px solid #E0E0E0;
    transition: var(--transition-base);
    overflow: hidden;
}

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

.blog-card-content {
    background-color: var(--color-base);
}

.blog-card h3 a {
    color: var(--color-dark);
    transition: var(--transition-base);
}

.blog-card h3 a:hover {
    color: var(--color-primary);
}

/* ============================================
   PAGE HEADER
   ============================================ */
.page-header {
    padding: 3rem 0 2rem;
    background: linear-gradient(135deg, #FFF5F8 0%, #E3F2FD 100%);
}

/* ============================================
   RESOURCE CARDS
   ============================================ */
.resource-card {
    transition: var(--transition-base);
    border: 1px solid transparent;
}

.resource-card:hover {
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-md);
}

/* ============================================
   AUTHOR PAGE
   ============================================ */
.detail-card {
    border: 1px solid #E0E0E0;
    transition: var(--transition-base);
}

.detail-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

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

.motivation-section {
    box-shadow: var(--shadow-lg);
}

/* Specialties */
.specialty-item {
    border: 1px solid #E8E8E8;
    transition: var(--transition-base);
    height: 100%;
}

.specialty-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.specialty-item ul {
    padding-left: 1.2rem;
    margin-top: 0.5rem;
}

/* Publications */
.publication-category h5 {
    border-left: 4px solid var(--color-primary);
    padding-left: 1rem;
}

.publication-category .bg-white {
    border-left: 3px solid var(--color-neutral-bg);
    transition: var(--transition-base);
}

.publication-category .bg-white:hover {
    border-left-color: var(--color-secondary);
    box-shadow: var(--shadow-sm);
}

/* ============================================
   CONTACT FORM
   ============================================ */
.contact-form {
    border: 1px solid #E0E0E0;
}

.form-label {
    font-family: var(--font-primary);
    color: var(--color-dark);
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.25rem rgba(233, 30, 99, 0.25);
}

/* ============================================
   BLOG POST STYLES
   ============================================ */
.post-header {
    border-bottom: 3px solid var(--color-primary);
}

.post-meta {
    font-size: 0.95rem;
}

.post-content {
    font-size: 1.05rem;
}

.post-content h2 {
    margin-top: 2.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-neutral-bg);
}

.post-content h3 {
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.post-content ul {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.post-content li {
    margin-bottom: 0.75rem;
}

/* Impact Sections */
.impact-section {
    padding: 1.5rem;
    border-left: 4px solid var(--color-primary);
    background-color: var(--color-light);
    margin-bottom: 1.5rem;
    border-radius: var(--radius-sm);
}

/* Solution Cards */
.solution-card {
    border: 1px solid #E0E0E0;
    transition: var(--transition-base);
}

.solution-card:hover {
    border-color: var(--color-accent);
    background-color: #F1F8F4 !important;
}

/* CTA Box */
.cta-box {
    box-shadow: var(--shadow-lg);
}

/* Testimony Cards */
.testimony-card {
    border-left: 4px solid var(--color-secondary);
    transition: var(--transition-base);
}

.testimony-card:hover {
    background-color: #E3F2FD !important;
    box-shadow: var(--shadow-md);
}

/* Action Section */
.action-section {
    box-shadow: var(--shadow-lg);
}

.action-item {
    padding: 1rem;
    border-left: 3px solid rgba(255, 255, 255, 0.5);
}

/* Resource Box */
.resource-box {
    transition: var(--transition-base);
}

.resource-box:hover {
    background-color: var(--color-light) !important;
    border-color: var(--color-primary) !important;
}

/* Tags */
.tags .badge {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
}

/* Share Section */
.share-section .btn {
    min-width: 45px;
    height: 45px;
}

/* Related Posts */
.related-posts .card {
    border: 1px solid #E0E0E0;
    transition: var(--transition-base);
}

.related-posts .card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

/* ============================================
   FOOTER
   ============================================ */
footer {
    margin-top: 3rem;
}

footer a:hover {
    color: var(--color-primary) !important;
    transition: var(--transition-base);
}

/* ============================================
   UTILITIES
   ============================================ */
.rounded-4 {
    border-radius: var(--radius-lg) !important;
}

.shadow-sm {
    box-shadow: var(--shadow-sm) !important;
}

.shadow {
    box-shadow: var(--shadow-md) !important;
}

.shadow-lg {
    box-shadow: var(--shadow-lg) !important;
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

/* Focus visible styles for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Skip to main content link (for screen readers) */
.skip-to-main {
    position: absolute;
    left: -9999px;
    z-index: 999;
    padding: 1rem;
    background-color: var(--color-primary);
    color: white;
    text-decoration: none;
}

.skip-to-main:focus {
    left: 50%;
    transform: translateX(-50%);
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --color-primary: #D81B60;
        --color-secondary: #1976D2;
    }

    .btn-outline-primary,
    .btn-outline-secondary {
        border-width: 2px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablet */
@media (max-width: 991px) {
    .hero-section {
        padding: 2rem 0;
    }

    .hero-section h1 {
        font-size: 2.5rem;
    }

    .author-image-placeholder {
        width: 200px;
        height: 200px;
    }
}

/* Mobile */
@media (max-width: 767px) {
    :root {
        --font-base: 15px;
    }

    .hero-section h1 {
        font-size: 2rem;
    }

    .display-4 {
        font-size: 2.5rem;
    }

    .hero-image-placeholder {
        height: 300px;
    }

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

    .nav-link {
        padding: 0.75rem 0 !important;
    }

    .info-card,
    .detail-card,
    .resource-card {
        margin-bottom: 1rem;
    }

    .author-image-placeholder {
        width: 150px;
        height: 150px;
        margin-bottom: 1.5rem;
    }

    .post-content {
        font-size: 1rem;
    }
}

/* Small Mobile */
@media (max-width: 575px) {
    .hero-section {
        padding: 1.5rem 0;
    }

    .hero-section h1 {
        font-size: 1.75rem;
    }

    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }

    .cta-section,
    .bg-gradient-primary {
        padding: 2rem 1rem !important;
    }

    .motivation-section {
        padding: 2rem 1.5rem !important;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .navbar,
    .btn,
    .share-section,
    footer,
    .related-posts {
        display: none;
    }

    body {
        font-size: 12pt;
        color: #000;
    }

    a {
        text-decoration: underline;
    }

    .post-content {
        max-width: 100%;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Smooth scroll behavior */
html {
    scroll-behavior: smooth;
}

/* ============================================
   CUSTOM SCROLLBAR (Webkit browsers)
   ============================================ */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #C2185B;
}