/* ============================================
   ROADMAP BASE STYLES
   Estilos compartidos por todos los roadmaps
   ============================================ */

/* Variables neutras (nunca cambian) */
:root {
    /* Marca DevFundamentals - SIEMPRE teal en nav/footer */
    --brand-primary: #0f766e;
    --brand-primary-light: #14b8a6;
    --brand-primary-dark: #0d5d56;

    /* Colores neutros */
    --accent-color: #ea580c;
    --accent-light: #f97316;
    --background: #ffffff;
    --surface: #f8fafc;
    --surface-elevated: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --font-family: "Inter", system-ui, -apple-system, sans-serif;
    --font-mono: "JetBrains Mono", monospace;
}

/* Reset y Base */
body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
}

/* ============================================
   NAVEGACIÓN - SIEMPRE TEAL (Variante A)
   ============================================ */
.glass-nav {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
}

/* Logo SIEMPRE con degradado teal de marca */
.logo-gradient {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
}

.gradient-text {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 50%, var(--brand-primary-dark) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2; /* Aumenta el line-height para dar más espacio vertical */
}

/* Links de navegación - hover teal */
nav a:hover {
    color: var(--brand-primary);
}

nav a.active {
    color: var(--brand-primary);
}

/* Animación de subrayado en desktop */
nav a .absolute {
    transition: width 0.3s ease;
}

/* Animación de subrayado en desktop */
nav a.relative {
    position: relative;
}

nav a.relative .absolute {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 0.125rem; /* 0.5 en Tailwind */
    background: linear-gradient(to right, var(--brand-primary), var(--brand-primary-light));
    transition: width 0.3s ease;
}

nav a.group:hover .absolute {
    width: 100%;
}

nav .focus-visible:focus,
nav a:focus-visible {
    outline: 2px solid var(--brand-primary);
    outline-offset: 2px;
}

footer .focus-visible:focus,
footer a:focus-visible {
    outline: 2px solid var(--brand-primary);
    outline-offset: 2px;
}

/* Menú móvil */
.mobile-menu-item {
    transition: all 0.2s ease;
}

.mobile-menu-item:hover {
    background: linear-gradient(to right, var(--surface) 0%, var(--surface-elevated) 100%);
}

/* Animación del menú hamburguesa */
.menu-icon {
    transition: all 0.3s ease;
}

#mobile-menu {
    transition: all 0.3s ease;
}

#mobile-menu.hidden {
    display: none;
}

#mobile-menu:not(.hidden) {
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   LAYOUT Y ESTRUCTURA
   ============================================ */
.glass-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-light);
}

.unified-bg {
    background: linear-gradient(135deg, var(--background) 0%, var(--surface) 50%, var(--background) 100%);
}

.section-divider {
    background: linear-gradient(135deg, var(--surface) 0%, var(--surface-elevated) 100%);
}

/* ============================================
   CARDS Y TUTORIALES
   ============================================ */
.roadmap-card {
    background: var(--background);
    border: 1px solid var(--border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

/* Efecto de brillo al hover */
.roadmap-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(var(--roadmap-primary-rgb), 0.05), transparent);
    transition: left 0.5s ease;
    z-index: 1;
    pointer-events: none;
}

.roadmap-card:hover::before {
    left: 100%;
}

.roadmap-card > * {
    position: relative;
    z-index: 2;
}

.roadmap-card:hover {
    border-color: var(--roadmap-primary-light);
    box-shadow: 0 12px 32px rgba(var(--roadmap-primary-rgb), 0.12);
    transform: translateY(-4px);
}

/* Estado completado - Los colores se definen en cada theme */
.roadmap-card.tutorial-completed {
    position: relative;
}

.roadmap-card.tutorial-completed::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    border-radius: 8px 0 0 8px;
    z-index: 5 !important;
}

/* ============================================
   CHECKBOXES
   ============================================ */
.tutorial-checkbox {
    appearance: none;
    width: 24px;
    height: 24px;
    border: 2px solid var(--border);
    border-radius: 6px;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.tutorial-checkbox:hover {
    border-color: var(--roadmap-primary);
    transform: scale(1.05);
}

.tutorial-checkbox:checked {
    animation: checkPulse 0.4s ease;
}

.tutorial-checkbox:checked::after {
    content: '✓';
    position: absolute;
    color: white;
    font-size: 14px;
    font-weight: bold;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: checkAppear 0.3s ease;
}

@keyframes checkPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes checkAppear {
    0% { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
    100% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

/* ============================================
   PROGRESS CIRCLE
   ============================================ */
.progress-circle {
    stroke-dasharray: 188.4;
    stroke-dashoffset: 188.4;
    transition: stroke-dashoffset 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 2px 4px rgba(var(--roadmap-primary-rgb), 0.2));
}

.progress-tooltip {
    position: absolute;
    bottom: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%);
    background: #1f2937;
    color: white;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 10;
}

.progress-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #1f2937;
}

.glass-card:hover .progress-tooltip {
    opacity: 1;
}

/* ============================================
   CONECTORES ENTRE TUTORIALES
   ============================================ */
.step-connector {
    background: linear-gradient(to bottom,
    var(--roadmap-primary) 0%,
    var(--roadmap-primary-light) 50%,
    var(--roadmap-primary) 100%);
    width: 3px;
    height: 60px;
    margin: 16px auto;
    position: relative;
    overflow: hidden;
}

.step-connector::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.5));
    animation: connectorShine 2s ease-in-out infinite;
}

@keyframes connectorShine {
    0%, 100% { transform: translateY(0); opacity: 0; }
    50% { transform: translateY(200%); opacity: 1; }
}

/* ============================================
   TUTORIALES BLOQUEADOS
   ============================================ */
.roadmap-card.blocked {
    position: relative;
    opacity: 0.6;
    cursor: not-allowed;
}

.roadmap-card.blocked::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.8) 0%, rgba(248, 250, 252, 0.9) 100%);
    border-radius: inherit;
    z-index: 10;
    pointer-events: none;
}

.roadmap-card.blocked:hover {
    transform: none !important;
    box-shadow: none;
    border-color: #e2e8f0;
}

.roadmap-card.blocked .tutorial-content {
    position: relative;
    z-index: 5;
}

.roadmap-card.blocked .tutorial-checkbox {
    pointer-events: none;
    opacity: 0.5;
}

.roadmap-card.blocked .coming-soon-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 20;
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    color: #6b7280;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.025em;
    text-transform: uppercase;
    border: 1px solid #d1d5db;
}

.roadmap-card.blocked .lock-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 15;
    background: rgba(255, 255, 255, 0.95);
    padding: 12px;
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border: 2px solid #e5e7eb;
}

.roadmap-card.blocked .lock-icon {
    width: 20px;
    height: 20px;
    color: #9ca3af;
}

.roadmap-card.blocked .btn-blocked {
    background: #f3f4f6 !important;
    color: #9ca3af !important;
    cursor: not-allowed !important;
    border: 1px solid #e5e7eb !important;
    pointer-events: none !important;
}

.roadmap-card.blocked .tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #1f2937;
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    z-index: 25;
    margin-bottom: 8px;
}

.roadmap-card.blocked:hover .tooltip {
    opacity: 1;
}

/* ============================================
   CARDS ESPECIALES (Intro y Conclusión)
   ============================================ */
.intro-card {
    animation: introGlow 3s ease-in-out infinite;
    border: 2px solid #fbbf24 !important;
    background: linear-gradient(to br, #fef3c7, #fde68a) !important;
}

@keyframes introGlow {
    0%, 100% { box-shadow: 0 8px 25px rgba(251, 191, 36, 0.2); }
    50% { box-shadow: 0 8px 35px rgba(251, 191, 36, 0.35); }
}

.intro-card:hover {
    border-color: #f59e0b !important;
    transform: translateY(-2px);
}

.conclusion-card {
    animation: conclusionGlow 3s ease-in-out infinite;
    border: 2px solid #a855f7 !important;
    background: linear-gradient(to br, #f3e8ff, #e9d5ff) !important;
}

@keyframes conclusionGlow {
    0%, 100% { box-shadow: 0 8px 25px rgba(168, 85, 247, 0.2); }
    50% { box-shadow: 0 8px 35px rgba(168, 85, 247, 0.35); }
}

.conclusion-card:hover {
    border-color: #9333ea !important;
    transform: translateY(-2px);
}

/* Excepciones para cards especiales */
.intro-card::before,
.conclusion-card::before {
    display: none;
}

/* ============================================
   SIGUIENTE TUTORIAL SUGERIDO
   ============================================ */
.next-tutorial-glow {
    position: relative;
    border-left: 4px solid var(--roadmap-primary) !important;
    background: linear-gradient(
            to right,
            rgba(var(--roadmap-primary-rgb), 0.05) 0%,
            rgba(255, 255, 255, 0) 100%
    ) !important;
    animation: glowPulse 3s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% {
        box-shadow: -4px 0 20px rgba(var(--roadmap-primary-rgb), 0.15),
        0 4px 12px rgba(var(--roadmap-primary-rgb), 0.1);
        border-left-color: var(--roadmap-primary);
    }
    50% {
        box-shadow: -4px 0 25px rgba(var(--roadmap-primary-rgb), 0.25),
        0 6px 16px rgba(var(--roadmap-primary-rgb), 0.15);
        border-left-color: var(--roadmap-primary-light);
    }
}

/* ============================================
   FOOTER - SIEMPRE TEAL (Variante A)
   ============================================ */
footer .logo-gradient {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 100%);
}

footer .gradient-text {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-light) 50%, var(--brand-primary-dark) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2; /* Aumenta el line-height para dar más espacio vertical */
}

footer a:hover {
    color: var(--brand-primary);
}

/* ============================================
   ANIMACIONES Y UTILIDADES
   ============================================ */
.floating {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.focus-visible:focus {
    outline: 2px solid var(--roadmap-primary);
    outline-offset: 2px;
}

.logo-focus:focus {
    outline: none;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 640px) {
    .roadmap-card {
        padding: 1.25rem;
    }

    .step-connector {
        height: 40px;
        margin: 12px auto;
    }

    .tutorial-checkbox {
        width: 20px;
        height: 20px;
    }
}